Models
Claude Fable 5 arrives with 1M context and doubled pricing
Anthropic released Claude Fable 5 and Claude Mythos 5 today, offering frontier-class performance at twice the cost of Claude Opus 4.8, with a 1 million token context window and strict safety guardrails.
1 min read
SourceSimon Willison
Anthropic released Claude Fable 5 and Claude Mythos 5 today. Early testing by independent evaluators shows both models performing above Claude Opus 4.8, with Fable 5 operating under enhanced safety classifiers while Mythos 5 removes those restrictions entirely.
The models carry a 1 million token co...
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Method & sources
- Source type
- Primary publication (lab/vendor blog) — our analysis + implication
- Source link
- Simon Willison
- Published
- UTC
- Byline
- By the gotcontext.ai team (editorial standards)
- Correction?
- corrections@gotcontext.ai