AnthropicLaunchAI ModelsSeptember 1, 2026

Anthropic launches Claude Fable 5.1

Claude Fable 5.1 scores 55.8% on Terminal-Bench 4.0, ahead of Fable 5 (42%) and Opus 5 (52.3%). Priced same as Fable 5 with cache reads cut to $0.25/MTok from $1/MTok. Available in Claude Code, Claude Platform, Amazon Bedrock, and Perplexity Computer.

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