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Andrej Karpathy Joins Anthropic · history

Version 8

2026-05-25 08:13 UTC · 208 items

What

Andrej Karpathy joined Anthropic's pre-training team on May 19, 2026 [1][2], confirmed by TechCrunch, CNBC, Axios, WSJ, Forbes, Reuters, and Observer [5]. AI Automation Global specifically frames the move as a race for 'pretraining talent' at the frontier [7], and a Medium analysis casts it as a signal about the 'real AI war' between OpenAI and Anthropic [8]. Claude Mythos Preview — Anthropic's unreleased frontier model scoring 93.9% on SWE-bench [31] and leading 17 of 18 measured benchmarks [32] — remains withheld from public access, with cybersecurity analysts attributing the hold to an 'AI Autonomous Offensive Threshold' [34][35][36]. OpenAI's competing frontier model, codenamed Spud, was projected to launch as early as April 2026 [41], with business analysts framing both models as jointly reshaping the competitive landscape [42].

Why it matters

Karpathy's placement on Anthropic's pre-training team — where foundational model capabilities originate — signals where Anthropic believes the decisive frontier work happens. The named Spud-vs-Mythos contest in press coverage makes the race legible as a two-model story, and the cybersecurity community's articulation of a specific autonomous offensive capability threshold for Mythos suggests the stakes extend beyond product competition into safety policy territory.

Open questions

  • The Cloud Security Alliance and security analysts name an 'AI Autonomous Offensive Threshold' as the reason Claude Mythos is withheld [34][35], but CSA's broader 2026 AI security publications [37][38][39] do not appear to elaborate on this specific concept. Does this threshold correspond to a defined ASL level under Anthropic's responsible scaling policy, and has Anthropic formally acknowledged it as the blocking mechanism?

  • OpenAI's Spud model was projected to launch 'this month' as of April 2026 coverage [41], and business analysts positioned it alongside Mythos as reshaping the competitive landscape [42]. Has Spud shipped publicly, and what are its actual benchmark scores?

  • What specifically will Karpathy contribute within Anthropic's pre-training team — scaling methodology, data curation, architecture decisions? All credible reporting confirms the team assignment but no scope details have surfaced [2][4][51][7].

  • Will Eureka Labs continue operating independently without Karpathy? Social media continues tracking his status [52][53], the company raised $6.7M in seed funding [19], and Karpathy indicated education work is deprioritized near-term [6] — but no reporting on Eureka's team or product plans has emerged.

Narrative

On May 19, 2026, Andrej Karpathy posted to Twitter that he had joined Anthropic [1], and reporting from TechCrunch, CNBC, Axios, the Wall Street Journal, Forbes, Reuters, and Observer confirmed the same specific detail: he joined Anthropic's pre-training team, the group responsible for building Claude from the ground up [2][3][4][5]. His announcement described the current LLM moment as 'especially formative' and acknowledged that his prior AI education work at Eureka Labs would be deprioritized near-term [6]. AI Automation Global characterized the hire as a 'race for pretraining talent' at the frontier [7], and a Medium analysis framed it as a signal about the 'real AI war' between the two companies [8]. PYMNTS placed it within an 'AI Research Arms Race' [9], while the AI community broadly read it as a competitive loss for OpenAI and a talent win for Anthropic [10][11]. Amplification reached an estimated 3 million views [12] and has continued through podcasts including TWiAI [13], LinkedIn posts from Business Insider [14], and international social media [15][16][17].

Karpathy's career arc gives the move its weight. He co-founded OpenAI, led AI at Tesla, returned briefly to OpenAI, then departed in early 2024 [18]. He subsequently founded Eureka Labs, an AI-native education company that raised $6.7M in seed funding [19], and spent roughly two years producing public AI education content. In the period before the Anthropic announcement, his public intellectual output was substantive: at Sequoia AI Ascent 2026 he argued LLMs are category-creating technologies introducing entirely new application horizons [20]; he articulated a vision of a web where 99.9% of content would be optimized for AI agents [21]; he coined 'Slopacolypse' to describe a coming flood of low-quality AI-generated content [22]; and his 'Software Is Changing (Again)' talk was hosted on YouTube [23] and the YC Startup Library [24]. One remark has achieved particular resonance: Karpathy wrote on Twitter that he has 'never felt this much behind as a programmer' [25], a comment that has circulated through Reddit [26], Global Nerdy [27], Instagram [28], and YouTube [29] as an authentic reflection of expert disorientation in the AI-assisted coding era.

The most significant product context for the hire is Claude Mythos. Anthropic published a Claude Mythos Preview system card [30], with benchmark scores of 93.9% on SWE-bench [31] and performance leading 17 of 18 benchmarks Anthropic measured [32]. The model is not yet publicly accessible [33]. The cybersecurity dimension of that restriction has drawn specific attention: the Cloud Security Alliance published a research note naming an 'AI Autonomous Offensive Threshold' in connection with Claude Mythos [34] — a concept describing the level at which an AI model can conduct autonomous offensive cyber operations. SingerLewak published an analysis of what Mythos's restricted release means for cybersecurity [35], and a LinkedIn piece frames the model as rewriting 'the rules of AI cyber risk' [36]. This positions the gap between published benchmarks and public unavailability not as a product delay but as a deliberate safety hold tied to offensive capability concerns. CSA's broader 2026 AI security publications — covering enterprise AI agent exposure [37], cloud and AI security trends [38], and agentic control plane security [39] — provide additional context for why frontier models with autonomous capabilities face heightened institutional scrutiny, even if these publications do not address the Mythos threshold directly.

The competitive framing has sharpened around two specific named models. Forbes positioned Mythos alongside OpenAI's 'Spud' as twin 2026 frontier models [40], and a LumiChats analysis reported Spud was expected to launch as early as April 2026 [41], describing it as OpenAI's 'secret weapon.' A business-oriented analysis from TJ Robertson framed both models jointly around their enterprise implications [42]. Unverified social media claims that Karpathy joined to lead 'R&D' broadly [43] or to head 'recursive self-improvement' research [44] persist but are contradicted by all credible reporting. Anthropic's institutional communications have also broadened alongside the hire: the company announced the Anthropic Institute's focus areas [45] and a Fellows Program for emerging global AI talent [46], with LinkedIn coverage framing Karpathy's role as 'AI frontier research' [47] — consistent with Anthropic's broader institutional narrative around the Institute. The hire arrived in the context of Anthropic's reported $30B fundraise [48][49] and a claimed first profitable quarter [50].

Timeline

  • 2024-02: Karpathy departs OpenAI for the second time [18]
  • 2024-07: Karpathy announces Eureka Labs, an AI-native education company; company raises $6.7M in seed funding [83][84][19]
  • 2026-04: Karpathy presents at Sequoia AI Ascent 2026, arguing LLMs are category-creating technologies and introducing 'menugen' as a new AI application horizon [20][55][85][86][87]
  • 2026-04: Claude Mythos Preview system card published by Anthropic; benchmarks show 93.9% SWE-bench and leadership on 17 of 18 Anthropic-measured evaluations; model not yet publicly released [30][31][32][33][76]
  • 2026-04: Cloud Security Alliance publishes research note on Claude Mythos and the 'AI Autonomous Offensive Threshold'; cybersecurity analysts frame restricted Mythos release around autonomous offensive AI risk; CSA publishes broader 2026 AI security state-of-play reports [34][35][36][37][38][39]
  • 2026-04: Forbes frames Spud (OpenAI) and Mythos (Anthropic) as twin frontier models; LumiChats reports Spud projected to launch in April 2026; business analysts frame both models jointly around enterprise implications [40][78][41][42]
  • 2026-04 to 2026-05: Karpathy articulates vision of 99.9% AI-optimized web, warns of 'Slopacolypse', and delivers 'Software Is Changing (Again)' talk hosted on YouTube and YC Startup Library [21][56][57][58][88][23][24][22]
  • 2026-05-19: Karpathy officially announces he has joined Anthropic via Twitter [1][6]
  • 2026-05-19: TechCrunch, CNBC, Axios, WSJ, Forbes, Reuters, and Observer confirm Karpathy joins Anthropic's pre-training team specifically; PYMNTS frames it as part of an 'AI Research Arms Race'; AI Automation Global frames it as a race for 'pretraining talent' [2][60][59][61][62][51][5][9][7]
  • 2026-05-19: AI community reacts; hire framed as competitive win for Anthropic over OpenAI; Medium analysis casts it as signal of the 'real AI war' [10][11][89][54][8]
  • 2026-05-19 to 2026-05-25: Sustained international and social media amplification continues; announcement reaches ~3M views; TWiAI podcast covers hire; Karpathy's 'never felt this much behind as a programmer' comment circulates across Twitter, Reddit, YouTube, Instagram, and developer blogs [12][90][91][25][26][27][28][29][71][15][16][17][14][13][66][67][68]
  • 2026: Anthropic Institute focus areas announced; Anthropic Fellows Program for emerging global AI talent publicized [45][46]

Perspectives

Andrej Karpathy

Enthusiastic about joining Anthropic; frames the decision around the historical significance of the current LLM moment; acknowledges intent to eventually return to AI education but is deprioritizing it near-term; pre-hire public framing casts LLMs as category-creating, warns of 'Slopacolypse,' envisions a web where 99.9% of content is AI-optimized, and admits to personally 'feeling behind as a programmer' in the current AI-assisted coding environment

Evolution: Consistent with prior pass; the 'never felt this much behind as a programmer' comment continues circulating as a self-contained discussion thread about programmer identity in the AI era, independent of the hire news cycle

[6][1][54][20][55][21][56][57][23][24][58][25][26][27][28][29]

Major tech press (TechCrunch, CNBC, Axios, WSJ, Forbes, Reuters, Observer, PYMNTS, Business Insider)

Confirm the pre-training team assignment; treat the hire as a significant competitive talent signal favoring Anthropic; Observer frames it as a 'Major Talent Win'; PYMNTS contextualizes it within an 'AI Research Arms Race'; Business Insider amplified via LinkedIn

Evolution: Consistent; Business Insider's LinkedIn post [14] extends mainstream press amplification but does not add new framing

[2][59][60][61][62][51][5][9][14]

AI and developer community (social media, newsletters, developer forums, YouTube, podcasts)

Broadly frame the hire as a loss for OpenAI and win for Anthropic; developer communities engage seriously with Karpathy's pre-hire intellectual content; Karpathy's 'feels behind as a programmer' comment resonates as an authentic reflection of widespread disorientation; TWiAI podcast treats the hire as a top news item

Evolution: Podcast coverage (TWiAI [13]) and Medium analysis framing the 'real AI war' [8] extend community engagement; AI Automation Global adds a 'pretraining talent race' framing [7] that is more precise than earlier 'talent win' language

[10][11][63][64][65][66][67][68][69][23][24][12][70][22][26][27][28][29][71][15][16][17][8][7][13]

Cybersecurity and AI safety community (Cloud Security Alliance, SingerLewak, LinkedIn security analysts)

Frame Claude Mythos's restricted release as a deliberate safety hold tied to autonomous offensive cyber capabilities; CSA specifically names an 'AI Autonomous Offensive Threshold' as the relevant risk concept; coverage treats cybersecurity as the primary reason Mythos is withheld, not product readiness

Evolution: CSA's broader 2026 AI security publications [37][38][39] provide context on enterprise AI agent exposure and agentic control plane risks but do not elaborate on the specific Mythos threshold — suggesting the threshold concept may originate from a single specialized CSA research note rather than a broad CSA framework

[34][35][36][37][38][39][72]

Claude Mythos and frontier model coverage (CSA, SingerLewak, Forbes, LumiChats, TJ Robertson, NxCode, MindStudio)

Treat Mythos as a concrete, high-performing Anthropic model withheld due to cybersecurity risk concerns; coverage increasingly frames the restriction as principled safety policy; Forbes and analysts position Mythos as one of two named 2026 frontier models alongside OpenAI's Spud; LumiChats reported Spud was projected to launch in April 2026

Evolution: LumiChats' April 2026 Spud launch projection [41] and TJ Robertson's Spud-vs-Mythos business analysis [42] add granularity to the competitive framing, though Spud's actual public launch status remains unconfirmed in coverage

[30][31][73][32][33][74][75][76][34][35][36][77][40][78][41][42]

Unverified social media (Instagram reel, fringe posts)

Variously claim Karpathy joined to 'Lead R&D' broadly [43] or to lead 'recursive self-improvement' research [44] — both contradict confirmed pre-training team reporting

Evolution: No new unverified claims this pass; existing fringe framing persists without corroboration; Instagram continues tracking Karpathy's status [52]

[43][44][52]

Anthropic (institutional)

Published Claude Mythos Preview system card and benchmarks; announced Anthropic Institute focus areas and Fellows Program; LinkedIn coverage frames Karpathy's role as 'AI frontier research,' consistent with Anthropic's broader institutional narrative around the Institute

Evolution: Consistent with prior pass; institutional framing remains coherent between the hire and the Institute launch

[30][45][46][47][79]

Tensions

  • Confirmed pre-training team role (per TechCrunch, CNBC, Reuters, Observer, AI Automation Global) vs. unverified social media claims that Karpathy joined to lead 'R&D' broadly [43] or 'recursive self-improvement' research specifically [44] — neither fringe claim has been corroborated by any credible outlet [2][4][51][5][7][44][43]
  • Competitive 'Anthropic wins the talent war' framing vs. counter-evidence that OpenAI is shipping frontier models (Spud projected for April 2026 [41]) in parallel and releasing multiple specialized models rapidly [80] — reflecting ongoing instability in who is 'winning' the frontier AI race on any given day [10][81][82][63][65][70][40][78][80][41][42]
  • Claude Mythos benchmark scores are public (93.9% SWE-bench, leading 17/18 evaluations) [31][32] but the model itself is withheld from public access [33] — cybersecurity experts attribute this to an 'AI Autonomous Offensive Threshold' [34][35], but Anthropic has not officially explained the gap or confirmed any specific safety classification, and CSA's broader publications [37][38][39] do not elaborate the threshold concept beyond the initial research note [31][73][32][33][30][34][35][36][37][38][39]

Sources

  1. [1] I’ve joined Anthropic — reactive:karpathy-joins-anthropic (2026-05-19)
  2. [2] OpenAI co-founder Andrej Karpathy joins Anthropic's pre-training team — reactive:karpathy-joins-anthropic
  3. [3] Andrej Karpathy joins Anthropic to accelerate Claude pre-training — reactive:karpathy-joins-anthropic (2026-05-20)
  4. [4] Anthropic hires OpenAI co-founder Andrej Karpathy to lead Claude ... — reactive:karpathy-joins-anthropic
  5. [5] Anthropic Hires OpenAI Co-Founder Andrej Karpathy in Major Talent Win | Observer — reactive:anthropic-partnerships-expansion
  6. [6] Personal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative.… — Andrej Karpathy Twitter (2026-05-19)
  7. [7] Karpathy Joins Anthropic: AI Race for Pretraining Talent | AI Automation Global — reactive:karpathy-joins-anthropic
  8. [8] OpenAI Co-Founder Joins Anthropic: What Andrej Karpathy's Move ... — reactive:anthropic-rapid-ascent
  9. [9] Andrej Karpathy Lands at Anthropic Amid AI Research Arms Race — reactive:openai-corporate-transition
  10. [10] 🔥 Andrej Karpathy Just Joined Anthropic. Here's Why That Terrifies OpenAI — https://t.co/hLHeNklyI4 — reactive:karpathy-joins-anthropic (2026-05-22)
  11. [11] RT @Dovydas44444: OpenAI lost its 11th co-founder. Anthropic gained him. Andrej Karpathy just joined Anthropic this week... — reactive:karpathy-joins-anthropic (2026-05-22)
  12. [12] 👨‍💻 [Karpathy joins Anthropic] OpenAI co-founder announces: "I've joined Anthropic." Joins pre-training team. 3M views i... — reactive:karpathy-joins-anthropic (2026-05-23)
  13. [13] Grads boo AI, Reese Witherspoon gets dunked + Karpathy joins Anthropic | TWiAI E14 — reactive:karpathy-joins-anthropic
  14. [14] Andrej Karpathy Joins Anthropic | Business Insider posted on the topic — reactive:karpathy-joins-anthropic
  15. [15] ¿Karpathy en Anthropic? El fichaje que nadie esperaba revoluciona la IA. Aquí analizan por qué su llegada a Claude cambi... — reactive:karpathy-joins-anthropic (2026-05-24)
  16. [16] RT @ApollonVisual: Karpathy Joins Anthropic Pretraining Team — reactive:karpathy-joins-anthropic (2026-05-24)
  17. [17] 🤖 Karpathy joins Anthropic. The biggest talent move of the year just happened. Andrej Karpathy, former Director of AI at... — reactive:karpathy-joins-anthropic (2026-05-24)
  18. [18] Hi everyone yes, I left OpenAI yesterday - Hacker News — reactive:karpathy-joins-anthropic
  19. [19] Eureka Labs $6.7M Seed Funding (2026) | Investors & Contacts — reactive:karpathy-joins-anthropic
  20. [20] Fireside chat at Sequoia Ascent 2026 from a ~week ago. Some highlights: — Andrej Karpathy Twitter (2026-04-30)
  21. [21] AI expert Andrej Karpathy envisions a web where 99.9% of content is optimized for AI, not humans — reactive:karpathy-joins-anthropic
  22. [22] Andrej Karpathy says 2026 will be the Slopacolypse. And AI ... - Reddit — reactive:enterprise-ai-coding-battle
  23. [23] Andrej Karpathy: Software Is Changing (Again) - YouTube — reactive:karpathy-joins-anthropic
  24. [24] Andrej Karpathy: Software Is Changing (Again) : YC Startup Library | Y Combinator — reactive:karpathy-joins-anthropic
  25. [25] I've never felt this much behind as a programmer. The profession is ... — reactive:karpathy-joins-anthropic
  26. [26] Andrej Karpathy said he's never felt more behind as a programmer ... — reactive:karpathy-joins-anthropic
  27. [27] Don’t feel bad; even the inventor of the term “vibe coding” is overwhelmed by all the AI-driven changes : Global Nerdy — reactive:karpathy-joins-anthropic
  28. [28] If you write code for a living, be honest: Have you felt a little... lost ... — reactive:karpathy-joins-anthropic
  29. [29] "I've never felt this much behind as a programmer." - Andrej Karpathy — reactive:karpathy-joins-anthropic
  30. [30] [PDF] Claude Mythos Preview System Card - Anthropic — reactive:frontier-ai-cyber-capabilities
  31. [31] Claude Mythos Preview: Anthropic's Most Powerful AI (93.9% SWE-bench) — Why You Can't Use It | NxCode — reactive:karpathy-joins-anthropic
  32. [32] Claude Mythos leads 17 of 18 benchmarks Anthropic measured. Muse Spark put Meta back in the frontier club, and OpenAI's 'Spud' model is reportedly near launch — reactive:karpathy-joins-anthropic
  33. [33] Anthropic just dropped benchmark scores for their unreleased ... — reactive:karpathy-joins-anthropic
  34. [34] Claude Mythos and the AI Autonomous Offensive Threshold — reactive:frontier-ai-cyber-capabilities
  35. [35] Anthropic's Mythos Preview: What the Restricted Release Means for ... — reactive:karpathy-joins-anthropic
  36. [36] Claude Mythos Preview rewrites the rules of AI cyber risk - LinkedIn — reactive:karpathy-joins-anthropic
  37. [37] New Cloud Security Alliance Survey Reveals 82% of Enterprises | CSA — reactive:karpathy-joins-anthropic
  38. [38] The State of Cloud and AI Security in 2026 | CSA — reactive:karpathy-joins-anthropic
  39. [39] Securing the Agentic Control Plane in 2026 | CSA — reactive:karpathy-joins-anthropic
  40. [40] Spud And Mythos: New Models Break On The Shore Of 2026 - Forbes — reactive:karpathy-joins-anthropic
  41. [41] OpenAI's Secret Weapon Has a Codename. It's Called 'Spud.' And It's Coming This Month. — LumiChats Blog — reactive:karpathy-joins-anthropic
  42. [42] What OpenAI Spud and Anthropic Mythos Mean for Your Business — reactive:karpathy-joins-anthropic
  43. [43] OpenAI Co-Founder Andrej Karpathy Joins Anthropic to Lead R&D. — reactive:anthropic-partnerships-expansion
  44. [44] 🚀 [Karpathy joins Anthropic to lead recursive self-improvement] Ex-OpenAI co-founder and Tesla AI chief will build RSI r... — reactive:karpathy-joins-anthropic (2026-05-21)
  45. [45] Focus areas for The Anthropic Institute — reactive:karpathy-joins-anthropic
  46. [46] Anthropic Fellows Program 2026 Overview • 4-month full-time AI ... — reactive:karpathy-joins-anthropic
  47. [47] Andrej Karpathy joins Anthropic in AI frontier research - LinkedIn — reactive:enterprise-ai-coding-battle
  48. [48] Andrej Karpathy Joins Anthropic & Anthropic Raises $30BN at $900 ... — reactive:karpathy-joins-anthropic
  49. [49] Anthropic's $900B Valuation Reshapes AI... | Metaintro — reactive:karpathy-joins-anthropic
  50. [50] OpenAI IPO filing day. Trump AI EO signing. Anthropic first profitable quarter. Karpathy at Anthropic. DHARA article ton... — reactive:karpathy-joins-anthropic (2026-05-22)
  51. [51] OpenAI co-founder and former Tesla AI executive Karpathy joins ... — reactive:karpathy-joins-anthropic
  52. [52] Andrej Karpathy Current Status 2026 Eureka Labs — reactive:karpathy-joins-anthropic
  53. [53] Eureka Labs | nextomoro — reactive:karpathy-joins-anthropic
  54. [54] Andrej Karpathy had already talked about this possibility 1 month back, that he might join one of the big AI labs and wh… — Rohan Paul Twitter (2026-05-19)
  55. [55] Sequoia AI Ascent 2026: Andrej Karpathy - by Guillermo Flor — reactive:agentic-coding-debate
  56. [56] The “Slopacolypse” Is Coming: Why Andrej Karpathy's 80% AI ... — reactive:karpathy-joins-anthropic
  57. [57] AI week in quotes: Andrej Karpathy predicts “slopacolypse” — reactive:karpathy-joins-anthropic
  58. [58] Ex-OpenAI founder claims 99.9% of web content will be AI-optimized — reactive:karpathy-joins-anthropic
  59. [59] Anthropic hires OpenAI cofounder Andrej Karpathy — reactive:karpathy-joins-anthropic (2026-05-20)
  60. [60] OpenAI co-founder Andrej Karpathy joins Anthropic - Axios — reactive:karpathy-joins-anthropic
  61. [61] Andrej Karpathy, Tesla Alum and OpenAI Co-Founder, Joins Anthropic — reactive:karpathy-joins-anthropic
  62. [62] OpenAI Cofounder Andrej Karpathy Joins Rival Anthropic - Forbes — reactive:karpathy-joins-anthropic
  63. [63] The AI Talent War Is Moving Deeper - Exploring ChatGPT — reactive:karpathy-joins-anthropic
  64. [64] Ex-OpenAI Co-Founder Just Joined Anthropic...This is HUGE. — reactive:karpathy-joins-anthropic
  65. [65] "26 Million Jobs GONE!" - Anthropic STEALS OpenAI's Best As AI ... — reactive:karpathy-joins-anthropic
  66. [66] "Software 3.0: LLMs as platforms for human augmentation" | Arjun Basu posted on the topic | LinkedIn — reactive:karpathy-joins-anthropic
  67. [67] Software is Changing (Again) — reactive:karpathy-joins-anthropic
  68. [68] Reacting to Andrej Karpathy's talk, “Software Is Changing (Again)” — reactive:karpathy-joins-anthropic
  69. [69] The Three Types of Programmers in 2026 - Andrej Karpathy — reactive:karpathy-joins-anthropic
  70. [70] @seelffff Karpathy didn’t join Anthropic. Anthropic joined Karpathy. — reactive:karpathy-joins-anthropic (2026-05-22)
  71. [71] Karpathy to Anthropic : r/singularity - Reddit — reactive:karpathy-joins-anthropic
  72. [72] Data Security within AI Environments | CSA — reactive:karpathy-joins-anthropic
  73. [73] In-depth interpretation of Claude Mythos Preview: 5 core capabilities of Anthropic’s most powerful Large Language Model - Apiyi.com Blog — reactive:karpathy-joins-anthropic
  74. [74] Claude Mythos vs Claude Opus 4.6: How Big Is the Capability Jump? | MindStudio — reactive:karpathy-joins-anthropic
  75. [75] Anthropic Released Mythos Benchmarks Today - Facebook — reactive:karpathy-joins-anthropic
  76. [76] Claude Mythos: Anthropic's April 2026 AI Preview — reactive:karpathy-joins-anthropic
  77. [77] GPT-5.5 vs Claude Mythos: How the AI Race Is Reshaping Marketing – Marketing Agent Blog — reactive:karpathy-joins-anthropic
  78. [78] OpenAI Spud Release Date, GPT-5.5 Benchmarks, and Mythos Rumors - Adam Holter — reactive:karpathy-joins-anthropic
  79. [79] Why Anthropic made the most strategic hire? - Instagram — reactive:anthropic-partnerships-expansion
  80. [80] OpenAI Just Shipped 3 Specialized Models in 72 Hours — And 2 ... — reactive:karpathy-joins-anthropic
  81. [81] RT @Andr3jH: "Yesterday Karpathy joined Anthropic so it was over for OpenAI and Anthropic was back but today OpenAI solv... — reactive:karpathy-joins-anthropic (2026-05-22)
  82. [82] RT @Andr3jH: "Yesterday Karpathy joined Anthropic so it was over for OpenAI and Anthropic was back but today OpenAI solv... — reactive:karpathy-joins-anthropic (2026-05-22)
  83. [83] Andrej Karpathy is starting Eureka Labs, an "AI Native School" — reactive:karpathy-joins-anthropic
  84. [84] Excited to share that I am starting an AI+Education company called ... — reactive:karpathy-joins-anthropic
  85. [85] Andrej Karpathy and I are back at Sequoia Capital's AI Ascent 2026 ... — reactive:karpathy-joins-anthropic
  86. [86] AI Ascent 2026 | Sequoia Capital — reactive:karpathy-joins-anthropic
  87. [87] AI Ascent 2026 - YouTube — reactive:karpathy-joins-anthropic
  88. [88] Andrej Karpathy is Right: We're Still Writing for Humans When AI is ... — reactive:karpathy-joins-anthropic
  89. [89] @karpathy Congrats to Anthropic. 🚀 — Rohan Paul Twitter (2026-05-19)
  90. [90] # Andrej Karpathy离开OpenAI加入Anthropic：AI人才战打响了 — reactive:karpathy-joins-anthropic (2026-05-23)
  91. [91] 8. Karpathy の Anthropic 加入を「分水嶺」と読む — 中文圏の深掘り解説 — reactive:karpathy-joins-anthropic (2026-05-21)