Voices
Andrej Karpathy Calls Claude Fable 5 a 'Major-Version-Bump-Deserving Step Change' — 'Never Felt This Tempting to Stop Looking at the Code At All'
Reacting to Anthropic's June 9 Fable 5 release, Karpathy said it is SOTA 'on everything by a margin' and qualitatively a genuine step change on the order of Claude 4.5, peaking on long, very difficult problem-solving sessions where you can hand it far more ambitious tasks than usual. He admitted it's the first model where it's tempting to stop reading the code entirely (while cautioning against that in production) and flagged the safeguards as 'a little too trigger happy' at launch. For agentic-coding builders, one of the field's most credible voices is signaling a real capability discontinuity, not incremental gains.
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