2d • 🤖 AI
Claude Fable 5.2
Anthropic dropped a new top-tier model yesterday, and the cost per task is the part I'd look at first.
Claude Fable 5.2 is live on the API now, and Anthropic says it beats Opus 5.5 on most of their evals while often costing less per task at lower effort settings.
- Model ID claude-fable-5-2, available on the Claude Platform, AWS, Google Cloud and Azure
- $8 input and $40 output per million tokens, fast mode is $16 and $80
- Up to 30% faster output than Fable 5.1, per Anthropic
- At High effort it roughly matches Opus 5.5 at Max on FrontierCode 2.0 for about half the cost per task
- AutomationBench (business workflows): 51.4% vs 42.5% for Opus 5.5, but Gemini 4 Carbon still leads at 53.9%
- Mythos 5.2 is the same model with fewer safeguards, only for vetted orgs
- Preserved thinking now applies to all API accounts, so check your integrations
- Anthropic still calls Opus 5.5 the daily driver and Fable the pick for the hardest work
Are you guys going to route your hardest agent steps to Fable 5.2, or is Opus 5.5 still enough for what you're building? For me, Opus 5.5 is plenty for what I need.
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Claude Fable 5.2
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