by Anthropic
Anthropic's most capable widely released model, for the most demanding reasoning and long-horizon agentic work（This model is extremely expensive and is not recommended for casual use.）
Anthropic's most capable widely released model, for the most demanding reasoning and long-horizon agentic work（This model is extremely expensive and is not recommended for casual use.）
claude-fable-5 has a 1,000,000 token context window.
On AIHubMix, claude-fable-5 costs $11 per million input tokens and $55 per million output tokens. Cached input reads are billed at $1.1 per million tokens.
claude-fable-5 accepts text and image input.
claude-fable-5 supports thinking, tool calling, function calling and structured outputs. Per-protocol parameter support is listed in the capability table on this page.
claude-fable-5 is available through the AIHubMix unified API. The API is OpenAI-compatible: point your OpenAI SDK at https://aihubmix.com/v1, use your AIHubMix API key, and set the model name to claude-fable-5 — no other code changes needed.
claude-fable-5 is developed by Anthropic. AIHubMix aggregates it alongside models from other providers behind one API and one bill.
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Use claude-fable-5 via the AIHubMix unified API — one interface for every major LLM.