TLDR Tech / AI
Initial impressions of Claude Fable 5
Anthropic claims that Claude Fable 5 offers the same performance as Mythos 5 but with stricter guardrails. It has a 1 million token context window with 128,000 maximum output tokens. The model is priced at twice the price of the Claude Opus models at $10 per million input tokens and $50 per million output tokens. The Claude API has new mechanisms for alerting users when these guardrails are activated, and there is an option to request to fall back to another model automatically if something gets rejected.
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