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Claude Fable 5API
Claude Fable 5 is a Mythos-class model from Anthropic, built for autonomous knowledge work and coding.
Prices update automatically — checked daily against provider list prices.
- $20 per 1M tokens, assuming 3 input for 1 output the convention used by Artificial Analysis
- cheaper than 6% of the 226 commercial models tracked here
- 29 of 30 Anthropic models tracked here, from cheapest
Benchmarks & performance
Independent benchmark scores for Claude Fable 5, measured by Artificial Analysis. Higher is better. Measurement mode: Max, Opus 4.8 Fallback.
About this model
Claude Fable 5 is a commercial AI model by Anthropic. The specifications below are tracked automatically: pricing is refreshed daily from public list prices, so the numbers on this page reflect the current cost of using the model through its API.
Frequently asked questions
What is Claude Fable 5?
Claude Fable 5 is an AI language model from Anthropic. It is a proprietary model, available through an API.
Is Claude Fable 5 free?
Claude Fable 5 is not free: it costs $10 per million input tokens and $50 per million output tokens. Open-weight alternatives can be self-hosted at no per-token cost.
What is Claude Fable 5 good at?
Independent benchmarks from Artificial Analysis give it GPQA 92.6%, Humanity's Last Exam 55.5%, Long Context Reasoning 82.3%, SciCode 61%, IFBench 63.5%, τ²-Bench 98.5%, τ-Bench Banking 38.1%, Terminal-Bench 84.6%, Terminal-Bench Hard 62.9%. It is particularly used for code generation.