Andrej Karpathy joins Anthropic to work on large language models at the research frontier and says the next few years will be especially formative
Karpathy remains committed to education and will resume it later
#20Miles Brundage@MILES_BRUNDAGEBig day for those who do not wish to advance the rate of AI capabilities progress
Andrew Curran@AndrewCurran_Karpathy will be forming a new pre-training team focused on Recursive Self Improvement and will be teaching Claude to improve Claude's training, reporting from Axios.
(ref. to this, for those who are less AI company statement obsessed https://www.anthropic.com/news/core-views-on-ai-safety)
Miles Brundage@Miles_BrundageBig day for those who do not wish to advance the rate of AI capabilities progress
@karpathy Woo, welcome!
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
#30Jim Fan@DRJIMFAN@karpathy Bigger news than Google IO!! Congrats Andrej!
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
#31Noam Brown@POLYNOAMIALAndrej @karpathy is back in the game! I would have loved for him to rejoin @OpenAI, but I'm happy he's at any frontier lab pushing the field forward. It’s easy to frame this as zero-sum among the labs, but in truth we’re collectively advancing the most important tech of our era.
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
@karpathy Will be awesome to work together again!
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
@karpathy Congrats Andrej - sorry to hear you won't be dedicated to education any more, but excited to see what you achieve at Anthropic.
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
#47Shane Gu@SHANEGUML"Staying independent is great for freedom, but risks your intuition "drifting" without intimate access to the latest opaque frontier models."
Recognize where your understanding drifts, and return to the "expert" (a frontier lab) to update it. Live like "DAgger".
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
#47Shane Gu@SHANEGUMLHe's the chosen one. Knowing Andrej briefly, his passion will remain in education and empowerment. I'm sure he will continue to be a great supporter for the broader community.
#64Nathan Lambert@NATOLAMBERTVery happy for Karpathy. Also very lonely times in open science.
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
Getting Karpathy is how Anthropic decided to overshadow Google I/O. Baller move.
.@karpathy at @AnthropicAI = more open-source from them? They're already contributing datasets: https://huggingface.co/Anthropic but would be super cool to see more (massive potential for impact obviously!)
@natolambert
Nathan Lambert@natolambertVery happy for Karpathy. Also very lonely times in open science.
@karpathy I'm so excited to work together!!
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
#144Ferenc Huszár@FHUSZARAndrej Karpathy and Luka Doncic on the same team, wow.
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
@karpathy Congrats on the next thing! Most importantly: have fun with Research & Development. (I will try to keep up with the Reproduce & Debug part :D)
Looking forward to learn from your learnings at the frontier.
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
#167Emad@EMOSTAQUEAs companies approach AGI it would be illogical for most not to go and work there.
AGI is a much bigger deal than most people still seem to believe & it is only by most forecasts a few years away (if not arrived already!).
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
#167Emad@EMOSTAQUEFigured it out
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
#167Emad@EMOSTAQUE@Yuchenj_UW I mean Anthropic is also @SpaceX's largest customer!
Yuchen Jin@Yuchenj_UWAndrej joined Anthropic. Even Elon couldn’t help but praise Anthropic. Anthropic really aura-farmed Google I/O today.
#170Dylan Patel@DYLAN522PBreaking: Andrej Karpathy just filed his Q1 2026 13F.
Here's everything you need to know about his recent 13F Top 10 positions:
1. VanEck Semiconductor ETF - $SMH - [Put] — $2.04B 2. Nvidia - $NVDA - [Put] — $1.57B 3. Oracle - $ORCL - [Put] — $1.07B 4. Broadcom - $AVGO - [Put] — $1.01B 5. Advanced Micro Devices - $AMD - [Put] — $969M 6. Bloom Energy - $BE — $879M 7. SanDisk - $SNDK — $724M 8. Micron - $MU - [Put] — $584M 9. CoreWeave - $CRWV — $556M 10. Taiwan Semiconductor - $TSM - [Put] — $535M
New positions: • $SMH, $NVDA, $ORCL, $AVGO, $AMD, $MU, $TSM, $ASML, $INTC, $GLW — all puts • $MU [Call] — $422M • $TSM [Call] — $355M • $SNDK [Call] — $389M
Summary: He kept his AI infrastructure longs and opened $8.45B in new puts against tech and semiconductor
atlas@creatine_cycleBREAKING: after just 4 hours at Anthropic @karpathy will be stepping away to join the A16Z new media team. "I think the next few years at the frontier of attention and growth hacking will be especially formative"
@scaling01 You’re right
Lisan al Gaib@scaling01Karpathy hasn't said what exactly he's going to work on, but I don't think he's getting into the weeds of optimizers or hardware or whatever I think he's going to work on something higher-level my best guess is auto-research
@scaling01 Spot on
Nicholas Joseph@nickevanjosephExcited to welcome Andrej to the Pretraining team! He'll be building a team focused on using Claude to accelerate pretraining research itself. I can’t think of anyone better suited to do it — looking forward to what we build together!
#214swyx🛬 SFO@SWYX
#214swyx🛬 SFO@SWYXrsi is here. jesus
Nicholas Joseph@nickevanjosephExcited to welcome Andrej to the Pretraining team! He'll be building a team focused on using Claude to accelerate pretraining research itself. I can’t think of anyone better suited to do it — looking forward to what we build together!
@karpathy congrats Andrej!! We will miss you
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
#250Richard Ngo@RICHARDMCNGOAn AGI company being “safety-focused” sometimes produces useful alignment research.
But it also focuses their capabilities researchers’ attention on the most acceleratory work.
The latter effect seems increasingly dominant.
Andrew Curran@AndrewCurran_Karpathy will be forming a new pre-training team focused on Recursive Self Improvement and will be teaching Claude to improve Claude's training, reporting from Axios.
#250Richard Ngo@RICHARDMCNGOThe more I observe this dynamic the more viscerally worried I become about Anthropic (vs other labs).
Idk how much to trust this gut-level concern. I might be treating Anthropic as outgroup and other labs as fargroup. But they just keep pushing on RSI!
#250Richard Ngo@RICHARDMCNGOPosting a few related tweets of mine below:
Richard Ngo@RichardMCNgoMany in AI safety have narrowed in on automated AI R&D as a key risk factor in AI takeover. But I'm concerned that the actions they're taking in response (e.g. publishing evals, raising awareness in labs) are very similar to the actions you'd take to accelerate automated AI R&D.
#250Richard Ngo@RICHARDMCNGOI think focusing on automated alignment research will probably make this dynamic even worse:
The same dynamic applied at OpenAI, which was focused on the shortest path to AGI back when DeepMind was still doing very broad research. And a lot of LLM scaling was driven by “safety people” like Dario under thin fig leaves which the field still pretends to believe.
Richard Ngo@RichardMCNgoI think focusing on automated alignment research will probably make this dynamic even worse:
#250Richard Ngo@RICHARDMCNGOThe same dynamic applied at OpenAI, which was focused on the shortest path to AGI back when DeepMind was still doing very broad research. And a lot of LLM scaling was driven by “safety people” like Dario under thin fig leaves which the field still pretends to believe.
#251Julien Chaumond@JULIEN_CTime for some open source!!
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
@karpathy 😲
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
I feel like everyone and their mother is joining Anthropic lol
@karpathy Woo excited to work with you Andrej!
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
@karpathy Huge hire!
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
@karpathy Welcome!! So excited we get to work together 👋
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
#345Nat McAleese@__NMCA__welcome, Andrej
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
@karpathy @PaulYacoubian Wow, congrats to Anthropic, and hope you enjoy doing R&D!
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
I don't get why people talk about Andrej having a 4 year gap on his resume.
Did everyone forget he was at OpenAI two years ago?
#371kipply@KIPPERRII@karpathy yippee
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
@karpathy @sammcallister Excited to get to work with you again, Andrej!
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
#389Erik Brynjolfsson@ERIKBRYNSome big news in AI, from @karpathy
Congrats, @DarioAmodei, @jackclarkSF and the whole team at @AnthropicAI
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
@polynoamial @karpathy @OpenAI Very classy.
Noam Brown@polynoamialAndrej @karpathy is back in the game! I would have loved for him to rejoin @OpenAI, but I'm happy he's at any frontier lab pushing the field forward. It’s easy to frame this as zero-sum among the labs, but in truth we’re collectively advancing the most important tech of our era.
Unbelievable narrative momentum OpenAI has got to step up their game
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
we're in the x hype hiring era At least OpenAI got the OpenClaw guy
Lisan al Gaib@scaling01Karpathy was literally hired for RSI he's starting a new pre-training team at Anthropic that focuses on autoresearch per Axios
#427Yuchen Jin@YUCHENJ_UWAnthropic has claimed the mandate of heaven.
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
@karpathy wowow, congrats to Anthropic!
looking forward to seeing new videos and cool repos and products you will build there :)
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
Andrej joined Anthropic. Even Elon couldn’t help but praise Anthropic. Anthropic really aura-farmed Google I/O today.
@karpathy Welcome to the team!
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
#437Xiao Ma@INFOXIAO@karpathy @_arohan_ omg
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
@karpathy So cool you are going back to R&D. Congrats. Lots of great opportunities in education, as always. Looking forward to learning more from your insights and all your shares.
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
#517Andrew Curran@ANDREWCURRAN_Wow! Karpathy has joined Anthropic!
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
#517Andrew Curran@ANDREWCURRAN_
Boris Cherny@bcherny@karpathy Welcome!! So excited we get to work together 👋
#517Andrew Curran@ANDREWCURRAN_
Jack Clark@jackclarkSF@karpathy Will be awesome to work together again!
#517Andrew Curran@ANDREWCURRAN_Many such cases.
#517Andrew Curran@ANDREWCURRAN_Lisan al Gaib@scaling01Karpathy hasn't said what exactly he's going to work on, but I don't think he's getting into the weeds of optimizers or hardware or whatever I think he's going to work on something higher-level my best guess is auto-research
#517Andrew Curran@ANDREWCURRAN_Karpathy is forming a new pre-training team that will focus on teaching Claude to improve Claude.
#517Andrew Curran@ANDREWCURRAN_Lisan al Gaib@scaling01Karpathy was literally hired for RSI he's starting a new pre-training team at Anthropic that focuses on autoresearch per Axios
Confirmed by Anthropic to CNBC.
Andrew Curran@AndrewCurran_Karpathy will be forming a new pre-training team focused on Recursive Self Improvement and will be teaching Claude to improve Claude's training, reporting from Axios.
#527Anjney Midha@ANJNEYMIDHAthere are some decisions that reverberate through the universe across space and time and change the texture of reality as we know it
this is one of them
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
@karpathy Welcome!! Excited to work together :D
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
@karpathy Epic! Once you’re inside can we get a video on how to train mythos in under an hour?
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
#612Ravid Shwartz Ziv@ZIV_RAVIDI'm not sure what I'm thinking about it. Anyway, good luck!
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
@karpathy Welcome!!
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
🫨
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
@karpathy ANDREJ FROM THE TOP ROPE!!!
Congrats!!
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
@karpathy this is awesome 🔥🔥🔥
as if anthropic couldn't accelerate even more!
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
@shaneguML I always appreciate your commitment to reminding people about dagger
Shane Gu@shaneguML"Staying independent is great for freedom, but risks your intuition "drifting" without intimate access to the latest opaque frontier models." Recognize where your understanding drifts, and return to the "expert" (a frontier lab) to update it. Live like "DAgger".
#687Bojan Tunguz@TUNGUZWhoa!
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
That’s it, they just hired Karpathy. No one else will get hired again. If you have not been hired yet, you are now officially part of the permanent underclass.
#716elie@ELIEBAKOUCHclaude is happy
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
#716elie@ELIEBAKOUCH@karpathy wowww congrats! what part of R&D will you be working on if you can share?
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
#716elie@ELIEBAKOUCH@scaling01 would be so cool
Lisan al Gaib@scaling01Karpathy hasn't said what exactly he's going to work on, but I don't think he's getting into the weeds of optimizers or hardware or whatever I think he's going to work on something higher-level my best guess is auto-research
#716elie@ELIEBAKOUCH@scaling01 lol missed this, thanks 🫡
Lisan al Gaib@scaling01@eliebakouch see two links in the thread
#716elie@ELIEBAKOUCH@swyx cute claude version of this meme 🥺
elie@eliebakouchclaude is happy
#729Chris Albon@CHRISALBONrip the greatest YouTuber of all time
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
#747Chamath Palihapitiya@CHAMATHOH: “This is like LeBron James joining Michael Jordan and the Bulls.”
Every other Frontier Lab: “Shit…”
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
#761Lisha@LISHALI88@karpathy Congrats Andrej and @AnthropicAI !
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
@karpathy Super congrats Andrej!! Can't wait for more cool educational vids and repos!
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
#812Brendan Dolan-Gavitt@MOYIXOkay, I suppose having Anthropic eventually hire every person on Earth would be *one* form of UBI...
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
#839Beff (e/acc)@BEFFJEZOSPolylaborous AI researcher
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
#839Beff (e/acc)@BEFFJEZOSAnthropic is the New York Yankees of AI at this point.
Near monopoly on S-tier talent
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
#839Beff (e/acc)@BEFFJEZOSKarpathy the teacher is the meta-meta-meta-learner
Andrew Curran@AndrewCurran_Karpathy will be forming a new pre-training team focused on Recursive Self Improvement and will be teaching Claude to improve Claude's training, reporting from Axios.
Karpathy joining Extropic instead of Anthropic would have been a more entertaining outcome
#839Beff (e/acc)@BEFFJEZOSTalking about Thermo Compute live on MTS
MTS@MTSliveKARPATHY JOINS ANTHROPIC | NEW GEMINI? | GOOGLE X BLACKSTONE | META LAYOFFS https://x.com/i/broadcasts/1NxaragYXaNKj
@rpoo @karpathy !!!
Ross@rpoo@karpathy Excited to work with you again!
@karpathy Welcome back in the game
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
#849@levelsio@LEVELSIOMy favorite person in AI joined my favorite AI company (well, shared favorite with xAI)
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
#861Thariq@TRQ212the future is bright, lets get to work
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
#861Thariq@TRQ212@karpathy welcome!!
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
#878🎭@DEEPFATES@karpathy Holy shit
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
@karpathy anthropic wins
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
@karpathy Congrats! And big win for Anthropic who will attract top researchers just from your presence
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
@karpathy Excited to work with you again!
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
By His Holiness Pope Dario I:
"Karpathy is hereby appointed Supreme RSI Architect and shall receive π/17 steradians of the future lightcone"
#980Lisan al Gaib@SCALING01Lisan al Gaib@scaling01Karpathy was literally hired for RSI he's starting a new pre-training team at Anthropic that focuses on autoresearch per Axios
#980Lisan al Gaib@SCALING01> October 2025: "AI agents are slop" > May 2026: joins Anthropic
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
#980Lisan al Gaib@SCALING01holy shit
Karpathy joined Anthropic
guess who has the mandate
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
#980Lisan al Gaib@SCALING01Andrej probably got more views on this post than Google on the entire Gemini 3.5 Flash launch
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
#980Lisan al Gaib@SCALING01Karpathy joins Anthropic to build RSI and Yann is still yapping about how LLMs are flawed
shout-out to prime intellect for jumping on the auto-research wagon before Karpathy joined Anthropic to work on that
#980Lisan al Gaib@SCALING01im hearing rumors that Anthropic gave Andrej a 6 figure salary
(hourly)
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
#980Lisan al Gaib@SCALING01Karpathy hasn't said what exactly he's going to work on, but I don't think he's getting into the weeds of optimizers or hardware or whatever
I think he's going to work on something higher-level
my best guess is auto-research
Lisan al Gaib@scaling01By His Holiness Pope Dario I: "Karpathy is hereby appointed Supreme RSI Architect and shall receive π/17 steradians of the future lightcone"
#980Lisan al Gaib@SCALING01Lisan al Gaib@scaling01Karpathy was literally hired for RSI he's starting a new pre-training team at Anthropic that focuses on autoresearch per Axios
@eliebakouch yeah it's confirmed already
elie@eliebakouch@scaling01 would be so cool
#980Lisan al Gaib@SCALING01@eliebakouch see two links in the thread
Lisan al Gaib@scaling01Karpathy was literally hired for RSI he's starting a new pre-training team at Anthropic that focuses on autoresearch per Axios
@karpathy curious, did you have to go through multiple rounds of interviews?
or did you just say "hi i want to join" then have one interview with the team and they let you in? (because that's what I imagine. you clearly have all of the expertise necessary)
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
Andrej joining Anthropic got ~3.18x more likes than Anthropic announcing Claude Mythos
whatever the deal was, Anthropic got the better end
#980Lisan al Gaib@SCALING01Karpathy was literally hired for RSI
he's starting a new pre-training team at Anthropic that focuses on autoresearch per Axios
Lisan al Gaib@scaling01Karpathy hasn't said what exactly he's going to work on, but I don't think he's getting into the weeds of optimizers or hardware or whatever I think he's going to work on something higher-level my best guess is auto-research
Lisan al Gaib@scaling01Karpathy was literally hired for RSI he's starting a new pre-training team at Anthropic that focuses on autoresearch per Axios
#980Lisan al Gaib@SCALING01Nicholas Joseph@nickevanjosephExcited to welcome Andrej to the Pretraining team! He'll be building a team focused on using Claude to accelerate pretraining research itself. I can’t think of anyone better suited to do it — looking forward to what we build together!
Lisan al Gaib@scaling01Karpathy was literally hired for RSI he's starting a new pre-training team at Anthropic that focuses on autoresearch per Axios
#980Lisan al Gaib@SCALING01okay I guess the RSI Architect role Karpathy is taking on was too obvious
Lisan al Gaib@scaling01By His Holiness Pope Dario I: "Karpathy is hereby appointed Supreme RSI Architect and shall receive π/17 steradians of the future lightcone"
#980Lisan al Gaib@SCALING01we have entered the kino zone
Lisan al Gaib@scaling01> October 2025: "AI agents are slop" > May 2026: joins Anthropic
#999Cody Blakeney@CODE_STARTbf it’s the kind of salary you need to offer to the person who is going to end the role of researcher permanently at the company.
Lisan al Gaib@scaling01im hearing rumors that Anthropic gave Andrej a 6 figure salary (hourly)
#1005Mahesh Sathiamoorthy@MADIATORCTO -> MTS? How about Sensei -> MTS?
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
@karpathy Congrats! MTS FTW :)
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
@karpathy Congrats to Anthropic. 🚀
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
#1032Rohan Paul@ROHANPAUL_AI@karpathy
Rohan Paul@rohanpaul_aiAndrej Karpathy had already talked about this possibility 1 month back, that he might join one of the big AI labs and why he may do so. "They (the AI labs) are kind of like at the edge of capability of what's possible. And they are working on what's coming down the line. And I think if you're outside of that frontier lab, your judgment fundamentally will start to drift because you're not part of what's coming down the line. And so I feel like my judgment will inevitably start to drift as well. And I won't actually have an understanding of how these systems actually work under the hood. It's a big system. I won't have a good understanding of how to develop and etc. And so I do think that in that sense, I agree and something I'm nervous about. I think it's worth basically being in touch with what's actually happening and actually being in the frontier lab. And if some of the frontier labs would have me come for some amount of time and do really good work for them, then I think that's maybe a good setup" --- From 'No Priors: AI, Machine Learning, Tech, & Startups" YT channel (link in comment)
#1032Rohan Paul@ROHANPAUL_AIAndrej Karpathy had already talked about this possibility 1 month back, that he might join one of the big AI labs and why he may do so.
"They (the AI labs) are kind of like at the edge of capability of what's possible. And they are working on what's coming down the line. And I think if you're outside of that frontier lab, your judgment fundamentally will start to drift because you're not part of what's coming down the line. And so I feel like my judgment will inevitably start to drift as well.
And I won't actually have an understanding of how these systems actually work under the hood. It's a big system. I won't have a good understanding of how to develop and etc. And so I do think that in that sense, I agree and something I'm nervous about. I think it's worth basically being in touch with what's actually happening and actually being in the frontier lab.
And if some of the frontier labs would have me come for some amount of time and do really good work for them, then I think that's maybe a good setup"
---
From 'No Priors: AI, Machine Learning, Tech, & Startups" YT channel (link in comment)
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
Rohan Paul@rohanpaul_aiAndrej Karpathy had already talked about this possibility 1 month back, that he might join one of the big AI labs and why he may do so. "They (the AI labs) are kind of like at the edge of capability of what's possible. And they are working on what's coming down the line. And I think if you're outside of that frontier lab, your judgment fundamentally will start to drift because you're not part of what's coming down the line. And so I feel like my judgment will inevitably start to drift as well. And I won't actually have an understanding of how these systems actually work under the hood. It's a big system. I won't have a good understanding of how to develop and etc. And so I do think that in that sense, I agree and something I'm nervous about. I think it's worth basically being in touch with what's actually happening and actually being in the frontier lab. And if some of the frontier labs would have me come for some amount of time and do really good work for them, then I think that's maybe a good setup" --- From 'No Priors: AI, Machine Learning, Tech, & Startups" YT channel (link in comment)
#1046Kylie Robison@KYLIEBYTESWHAT
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
dang... @DarioAmodei is the best recruiter of our time!
-marked safe from anthropic's latest round of hirings-
#1114alth0u🧶@ALTH0Utheyre breeding karpathy
Peter Wang 🦋@pwangWait wait I was told that AI was going to hit recursive self improvement by itself later this year… hiring Karpathy breaks the recursive step unless they’re going to actively breed or clone him
#1124signüll@SIGNULLLthis is like a leading franchise recruiting someone who’s simultaneously the best player & the league’s best broadcaster & its most watched developmental coach all in one.
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
@karpathy this is bigger news than google io!
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
@karpathy Welcome to the team! 😍
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
#1220rohit@KRISHNANROHITWhat's happening!
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
#1234Yohei@YOHEINAKAJIMAthis was not on my bingo card
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
@karpathy huge. congrats!!!!
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
@karpathy Congrats Andrej!
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
Andrejjjjjjj noooooooo
#1332Prakash@8TEAPI1) what
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
@karpathy Congrats Andrej!
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
#1345Crystal@CRYSTALSSSUPhuge
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
#1359Peter Wildeford🇺🇸🚀@PETERWILDEFORDwoah 👀
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
@karpathy welcome!
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
#1395Avital Balwit@AVITALBALWITWelcome to the team! We’re so excited
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
#1410Dan Shipper 📧@DANSHIPPERWOW
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
#1445Liv@LIVGORTON@ArtirKel 🥲
José Luis Ricón Fernández de la Puente@ArtirKel-marked safe from anthropic's latest round of hirings-
@karpathy Congrats, Andrej! (and of course to Anthropic).
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
#1496Chubby♨️@KIMMONISMUSAndrej Karpathy joining Anthropic is the biggest flex Anthropic could have hoped for.
10m views after 6h. Best hire ever.
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
#1496Chubby♨️@KIMMONISMUSNo way that Karpthy joined Anthropic! What
#1497Zephyr@ZEPHYR_Z9WAT
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
#1498Sharon Goldman@SHARONGOLDMANwowza!
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
#1511Matt Turck@MATTTURCKBreaking: Anthropic attains sainthood, officially annointed by AI Jesus
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
#1511Matt Turck@MATTTURCK2025: pre-training is dead!
2026:
Nicholas Joseph@nickevanjosephExcited to welcome Andrej to the Pretraining team! He'll be building a team focused on using Claude to accelerate pretraining research itself. I can’t think of anyone better suited to do it — looking forward to what we build together!
#1540Austen Allred@AUSTENHow funny would it be if he fixed like three things that annoy him and quit
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
#1598Carlos E. Perez@INTUITMACHINEHoly smokes!!! Is it game over for the competitor? What is it about Anthropic that nobody leaves?
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
@karpathy @yuris woohoo! welcome to the team :)
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
#1652Packy McCormick@PACKYMwoah
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
#1702“paula”@PAULARAMBLES
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
how it started/how it's going
@karpathy wow. congrats both.
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
this is insane. he’s gone so he can teach mythos to pre train their next model.
@karpathy @blknoiz06 Oh shit, congrats
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
@karpathy Very excited to have you on the team. Welcome!
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
#1829Theo - t3.gg@THEOWhat
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
@karpathy
Andrej Karpathy@karpathyPersonal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
“Dario doesn’t look that charismatic to me atleast from his interviews”
Well, okay, presumably that’s not the main criteria by which Andrej is choosing which company to join
