# Claude Fable 5.1 vs Mistral Medium 2505

As of Oct 15, 2026, Claude Fable 5.1 leads Mistral Medium 2505 in 4 of 4 shared categories: General LLM, Reasoning, Math, and Long context.

Claude Fable 5.1: $20 per 1M blended tokens.

Mistral Medium 2505: price per 1M tokens is unset in the catalog.

Claude Fable 5.1: closed weights.

Mistral Medium 2505: closed weights.

- Which to pick, General LLM: As of Oct 15, 2026, Claude Fable 5.1 leads Mistral Medium 2505 in General LLM at #6 against #169.
- Which to pick, Reasoning: As of Oct 15, 2026, Claude Fable 5.1 leads Mistral Medium 2505 in Reasoning at #5 against #173.
- Which to pick, Math: As of Oct 15, 2026, Claude Fable 5.1 leads Mistral Medium 2505 in Math at #2 against #41.
- Which to pick, Long context: As of Oct 15, 2026, Claude Fable 5.1 leads Mistral Medium 2505 in Long context at #6 against #166.

As of Oct 15, 2026, Claude Fable 5.1 is tied for state of the art in Factuality (since Oct 2, 2026; sources LMArena Text factuality; methodology v1.0).

As of Oct 15, 2026, Mistral Medium 2505 is ranked #41 in Math (since Oct 15, 2026; sources Humanity's Last Exam; methodology v1.0).