Anthropic Launches Claude Fable 5.1 With Lower Costs and Fewer False Positives

AnthropicSeptember 1, 2026en

Anthropic

AI Global Wire

Anthropic today introduced Claude Fable 5.1 and Claude Mythos 5.1, which the company says are the "world's most advanced models for coding and knowledge work". According to Anthropic, Claude Fable 5.1 sets a new standard for coding,

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