OpenRouterOpenRouter has made Anthropic's Claude Fable 5 model available on its platform. This model is designed for complex, long-running coding and autonomous knowledge work, achieving state-of-the-art performance on various benchmarks. Its availability expands access to a frontier AI model for developers building agentic applications.
The model is noted for its performance on benchmarks, achieving state-of-the-art results across agentic coding, knowledge work, and computer use tasks. Its design for multi-step, asynchronous work with self-correction capabilities positions it for end-to-end projects that previously required frequent human oversight.
Claude Fable 5 is available via OpenRouter's API, with pricing at $10 per million input tokens and $50 per million output tokens. It features a 1M-token context window and a maximum output of 128,000 tokens. Note that zero data retention (ZDR) is not supported for this model due to Anthropic's data retention policy for Mythos-class models.
Claude Fable 5 from @AnthropicAI is live on OpenRouter! Anthropic's most capable coding model, built for long-running, ambiguous work: legacy migrations, gnarly production bugs and async sessions that run for hours or days. SOTA on nearly all tested benchmarks. https://t.co/HLL5tyNLaq
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