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Compare · 2026-10-15

Claude Opus 5 vs Mistral Large 3

As of Oct 15, 2026, Claude Opus 5 leads Mistral Large 3 in 5 of 5 shared categories: General LLM, Reasoning, Coding › Web dev, Long context, and Factuality.

CategoryClaude Opus 5Mistral Large 3
General LLM
#11 · Was SOTA · General LLM
Margin 5.851063829787236
LMArena leaderboard dataset · Oct 13, 2026
#132 · #132 in General LLM
Margin 70.2127659574468
LMArena leaderboard dataset · Oct 13, 2026
Reasoning
#9 · Was SOTA · Reasoning
Margin 5.319148936170208
LMArena leaderboard dataset · Oct 13, 2026
#134 · #134 in Reasoning
Margin 71.80851063829788
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
#12 · #12 in Science
Margin —
Epoch AI benchmarking hub · Jul 24, 2026
—
Coding
#4 · #4 in Coding
Margin 22.727272727272734
Terminal-Bench Harbor Hub · Oct 6, 2026
#— · Not enough data
Margin —
LMArena leaderboard dataset · Oct 13, 2026
Coding › Agentic
#4 · #4 in Coding › Agentic
Margin 22.727272727272734
Terminal-Bench Harbor Hub · Oct 6, 2026
—
Coding › Web dev
#6 · Near-SOTA · Coding › Web dev
Margin 4
LMArena leaderboard dataset · Oct 13, 2026
#118 · #118 in Coding › Web dev
Margin 93.6
LMArena leaderboard dataset · Oct 13, 2026
Long context
#9 · Was SOTA · Long context
Margin 4.7872340425531945
LMArena leaderboard dataset · Oct 13, 2026
#136 · #136 in Long context
Margin 72.34042553191489
LMArena leaderboard dataset · Oct 13, 2026
Vision
#12 · #12 in Vision
Margin 36.8421052631579
Epoch AI benchmarking hub · Jul 24, 2026
#— · Not enough data
Margin —
LMArena leaderboard dataset · Oct 9, 2026
Factuality
#4 · Near-SOTA · Factuality
Margin 2.9069767441860535
LMArena leaderboard dataset · Oct 13, 2026
#96 · #96 in Factuality
Margin 56.395348837209305
LMArena leaderboard dataset · Oct 13, 2026
Abstraction (ARC)
#3 · #3 in Abstraction (ARC)
Margin —
Epoch AI benchmarking hub · Jul 24, 2026
—
Price per 1M tokens

Claude Opus 5: $10 per 1M blended tokens.

Mistral Large 3: price per 1M tokens is unset in the catalog.

Open weights

Claude Opus 5: closed weights.

Mistral Large 3: open weights.

Which to pick

General LLM: As of Oct 15, 2026, Claude Opus 5 leads Mistral Large 3 in General LLM at #11 against #132.

Reasoning: As of Oct 15, 2026, Claude Opus 5 leads Mistral Large 3 in Reasoning at #9 against #134.

Coding › Web dev: As of Oct 15, 2026, Claude Opus 5 leads Mistral Large 3 in Coding › Web dev at #6 against #118.

Long context: As of Oct 15, 2026, Claude Opus 5 leads Mistral Large 3 in Long context at #9 against #136.

Factuality: As of Oct 15, 2026, Claude Opus 5 leads Mistral Large 3 in Factuality at #4 against #96.

Claude Opus 5 · Mistral Large 3

Claude Opus 5 or Mistral Large 3?

As of Oct 15, 2026, Claude Opus 5 leads Mistral Large 3 in 5 of 5 shared categories: General LLM, Reasoning, Coding › Web dev, Long context, and Factuality.

Claude Opus 5 or Mistral Large 3 for General LLM?

As of Oct 15, 2026, Claude Opus 5 leads Mistral Large 3 in General LLM at #11 against #132.

Claude Opus 5 or Mistral Large 3 for Reasoning?

As of Oct 15, 2026, Claude Opus 5 leads Mistral Large 3 in Reasoning at #9 against #134.

Claude Opus 5 or Mistral Large 3 for Coding › Web dev?

As of Oct 15, 2026, Claude Opus 5 leads Mistral Large 3 in Coding › Web dev at #6 against #118.