Claude Fable 5.1 vs Mistral Medium 3.5
As of Oct 14, 2026, Claude Fable 5.1 leads Mistral Medium 3.5 in 5 of 5 shared categories: General LLM, Reasoning, Coding › Web dev, Long context, and Factuality.
Claude Fable 5.1
Yes. SOTA in co-SOTA in Factuality.
Mistral Medium 3.5
#82 Best current rank: #82 in General LLM, as of Oct 14, 2026.
| Category | Claude Fable 5.1 | Mistral Medium 3.5 |
|---|---|---|
| General LLM | #6 · Was SOTA · General LLM Margin 4.08163265306122 LMArena leaderboard dataset · Oct 13, 2026 | #82 · #82 in General LLM Margin 55.78231292517007 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #5 · Was SOTA · Reasoning Margin 4.109589041095887 LMArena leaderboard dataset · Oct 13, 2026 | #86 · #86 in Reasoning Margin 59.58904109589041 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #2 · Near-SOTA · Math Margin 2.2222222222222285 Epoch AI benchmarking hub · Sep 1, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Coding | #3 · Near-SOTA · Coding Margin 18.181818181818187 Terminal-Bench Harbor Hub · Oct 6, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Coding › Agentic | #3 · Near-SOTA · Coding › Agentic Margin 18.181818181818187 Terminal-Bench Harbor Hub · Oct 6, 2026 | — |
| Coding › Web dev | #5 · Near-SOTA · Coding › Web dev Margin 3.738317757009341 LMArena leaderboard dataset · Oct 13, 2026 | #99 · #99 in Coding › Web dev Margin 91.58878504672897 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #6 · Was SOTA · Long context Margin 4.08163265306122 LMArena leaderboard dataset · Oct 13, 2026 | #93 · #93 in Long context Margin 63.265306122448976 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #6 · #6 in Vision Margin 18.421052631578945 Epoch AI benchmarking hub · Sep 1, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 9, 2026 |
| Factuality | #1 · Co-SOTA · Factuality Margin 0 LMArena leaderboard dataset · Oct 13, 2026 | #84 · #84 in Factuality Margin 63.43283582089552 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | #3 · #3 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Sep 1, 2026 | — |
Claude Fable 5.1: $20 per 1M blended tokens.
Mistral Medium 3.5: $3 per 1M blended tokens.
Claude Fable 5.1: closed weights.
Mistral Medium 3.5: open weights.
General LLM: As of Oct 14, 2026, Claude Fable 5.1 leads Mistral Medium 3.5 in General LLM at #6 against #82.
Reasoning: As of Oct 14, 2026, Claude Fable 5.1 leads Mistral Medium 3.5 in Reasoning at #5 against #86.
Coding › Web dev: As of Oct 14, 2026, Claude Fable 5.1 leads Mistral Medium 3.5 in Coding › Web dev at #5 against #99.
Long context: As of Oct 14, 2026, Claude Fable 5.1 leads Mistral Medium 3.5 in Long context at #6 against #93.
Factuality: As of Oct 14, 2026, Claude Fable 5.1 leads Mistral Medium 3.5 in Factuality at #1 against #84.
Claude Fable 5.1 · Mistral Medium 3.5
Claude Fable 5.1 or Mistral Medium 3.5?
As of Oct 14, 2026, Claude Fable 5.1 leads Mistral Medium 3.5 in 5 of 5 shared categories: General LLM, Reasoning, Coding › Web dev, Long context, and Factuality.
Claude Fable 5.1 or Mistral Medium 3.5 for General LLM?
As of Oct 14, 2026, Claude Fable 5.1 leads Mistral Medium 3.5 in General LLM at #6 against #82.
Claude Fable 5.1 or Mistral Medium 3.5 for Reasoning?
As of Oct 14, 2026, Claude Fable 5.1 leads Mistral Medium 3.5 in Reasoning at #5 against #86.
Claude Fable 5.1 or Mistral Medium 3.5 for Coding › Web dev?
As of Oct 14, 2026, Claude Fable 5.1 leads Mistral Medium 3.5 in Coding › Web dev at #5 against #99.