Claude Opus 5.5 vs Mistral Large 3
As of Oct 14, 2026, Claude Opus 5.5 leads Mistral Large 3 in 5 of 5 shared categories: General LLM, Reasoning, Coding › Web dev, Long context, and Factuality.
Claude Opus 5.5
Yes. SOTA in co-SOTA in Reasoning, co-SOTA in Coding, co-SOTA in Coding › Agentic, Coding › Web dev, co-SOTA in Long context and co-SOTA in Factuality.
Mistral Large 3
#76 Best current rank: #76 in Factuality, as of Oct 14, 2026.
| Category | Claude Opus 5.5 | Mistral Large 3 |
|---|---|---|
| General LLM | #2 · Near-SOTA · General LLM Margin 1.3605442176870781 LMArena leaderboard dataset · Oct 13, 2026 | #103 · #103 in General LLM Margin 70.06802721088435 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #1 · Co-SOTA · Reasoning Margin 0 LMArena leaderboard dataset · Oct 13, 2026 | #104 · #104 in Reasoning Margin 71.91780821917808 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Science | #31 · #31 in Science Margin — Epoch AI benchmarking hub · Sep 22, 2026 | — |
| Coding | #1 · Co-SOTA · Coding Margin 0 Terminal-Bench Harbor Hub · Oct 6, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Coding › Agentic | #1 · Co-SOTA · Coding › Agentic Margin 0 Terminal-Bench Harbor Hub · Oct 6, 2026 | — |
| Coding › Web dev | #1 · SOTA · Coding › Web dev Margin 0 LMArena leaderboard dataset · Oct 13, 2026 | #104 · #104 in Coding › Web dev Margin 96.26168224299066 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #1 · Co-SOTA · Long context Margin 0 LMArena leaderboard dataset · Oct 13, 2026 | #102 · #102 in Long context Margin 69.38775510204081 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #4 · Near-SOTA · Vision Margin 13.15789473684211 Epoch AI benchmarking hub · Sep 22, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 9, 2026 |
| Factuality | #1 · Co-SOTA · Factuality Margin 0 LMArena leaderboard dataset · Oct 13, 2026 | #76 · #76 in Factuality Margin 57.462686567164184 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | #1 · #1 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Sep 22, 2026 | — |
Claude Opus 5.5: $8.000000000000002 per 1M blended tokens.
Mistral Large 3: price per 1M tokens is unset in the catalog.
Claude Opus 5.5: closed weights.
Mistral Large 3: open weights.
General LLM: As of Oct 14, 2026, Claude Opus 5.5 leads Mistral Large 3 in General LLM at #2 against #103.
Reasoning: As of Oct 14, 2026, Claude Opus 5.5 leads Mistral Large 3 in Reasoning at #1 against #104.
Coding › Web dev: As of Oct 14, 2026, Claude Opus 5.5 leads Mistral Large 3 in Coding › Web dev at #1 against #104.
Long context: As of Oct 14, 2026, Claude Opus 5.5 leads Mistral Large 3 in Long context at #1 against #102.
Factuality: As of Oct 14, 2026, Claude Opus 5.5 leads Mistral Large 3 in Factuality at #1 against #76.
Claude Opus 5.5 · Mistral Large 3
Claude Opus 5.5 or Mistral Large 3?
As of Oct 14, 2026, Claude Opus 5.5 leads Mistral Large 3 in 5 of 5 shared categories: General LLM, Reasoning, Coding › Web dev, Long context, and Factuality.
Claude Opus 5.5 or Mistral Large 3 for General LLM?
As of Oct 14, 2026, Claude Opus 5.5 leads Mistral Large 3 in General LLM at #2 against #103.
Claude Opus 5.5 or Mistral Large 3 for Reasoning?
As of Oct 14, 2026, Claude Opus 5.5 leads Mistral Large 3 in Reasoning at #1 against #104.
Claude Opus 5.5 or Mistral Large 3 for Coding › Web dev?
As of Oct 14, 2026, Claude Opus 5.5 leads Mistral Large 3 in Coding › Web dev at #1 against #104.