Anthropic launches Claude Fable 5.1 and Mythos 5.1 with lower costs and improved performance
Anthropic released Claude Fable 5.1 (general availability, ~25% cheaper than Fable 5) and Mythos 5.1 (trusted access only). Fable 5.1 shows major gains on coding and science benchmarks, better long-running autonomy, and reduced false positives. Available on major cloud platforms.
News sentiment70 · Bullish
Market impact60/100
Event statedeveloping
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