Compare · 2026-10-14

Claude Sonnet 5.5 vs Mistral Large 3

As of Oct 14, 2026, Claude Sonnet 5.5 leads Mistral Large 3 in 5 of 5 shared categories: General LLM, Reasoning, Coding › Web dev, Long context, and Factuality.

CategoryClaude Sonnet 5.5Mistral Large 3
General LLM
#27 · #27 in General LLM
Margin 18.367346938775512
LMArena leaderboard dataset · Oct 13, 2026
#103 · #103 in General LLM
Margin 70.06802721088435
LMArena leaderboard dataset · Oct 13, 2026
Reasoning
#18 · #18 in Reasoning
Margin 13.013698630136986
LMArena leaderboard dataset · Oct 13, 2026
#104 · #104 in Reasoning
Margin 71.91780821917808
LMArena leaderboard dataset · Oct 13, 2026
Math
#4 · #4 in Math
Margin 6.666666666666671
Epoch AI benchmarking hub · Sep 28, 2026
#— · Not enough data
Margin —
LMArena leaderboard dataset · Oct 13, 2026
Science
#3 · #3 in Science
Margin —
Epoch AI benchmarking hub · Sep 28, 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
#3 · Near-SOTA · Coding › Web dev
Margin 1.8691588785046775
LMArena leaderboard dataset · Oct 13, 2026
#104 · #104 in Coding › Web dev
Margin 96.26168224299066
LMArena leaderboard dataset · Oct 13, 2026
Long context
#11 · #11 in Long context
Margin 7.482993197278915
LMArena leaderboard dataset · Oct 13, 2026
#102 · #102 in Long context
Margin 69.38775510204081
LMArena leaderboard dataset · Oct 13, 2026
Vision
#1 · Co-SOTA · Vision
Margin 0
Epoch AI benchmarking hub · Sep 28, 2026
#— · Not enough data
Margin —
LMArena leaderboard dataset · Oct 9, 2026
Factuality
#16 · #16 in Factuality
Margin 12.68656716417911
LMArena leaderboard dataset · Oct 13, 2026
#76 · #76 in Factuality
Margin 57.462686567164184
LMArena leaderboard dataset · Oct 13, 2026
Price per 1M tokens

Claude Sonnet 5.5: $4.000000000000001 per 1M blended tokens.

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

Open weights

Claude Sonnet 5.5: closed weights.

Mistral Large 3: open weights.

Which to pick

General LLM: As of Oct 14, 2026, Claude Sonnet 5.5 leads Mistral Large 3 in General LLM at #27 against #103.

Reasoning: As of Oct 14, 2026, Claude Sonnet 5.5 leads Mistral Large 3 in Reasoning at #18 against #104.

Coding › Web dev: As of Oct 14, 2026, Claude Sonnet 5.5 leads Mistral Large 3 in Coding › Web dev at #3 against #104.

Long context: As of Oct 14, 2026, Claude Sonnet 5.5 leads Mistral Large 3 in Long context at #11 against #102.

Factuality: As of Oct 14, 2026, Claude Sonnet 5.5 leads Mistral Large 3 in Factuality at #16 against #76.

Claude Sonnet 5.5 · Mistral Large 3

Claude Sonnet 5.5 or Mistral Large 3?

As of Oct 14, 2026, Claude Sonnet 5.5 leads Mistral Large 3 in 5 of 5 shared categories: General LLM, Reasoning, Coding › Web dev, Long context, and Factuality.

Claude Sonnet 5.5 or Mistral Large 3 for General LLM?

As of Oct 14, 2026, Claude Sonnet 5.5 leads Mistral Large 3 in General LLM at #27 against #103.

Claude Sonnet 5.5 or Mistral Large 3 for Reasoning?

As of Oct 14, 2026, Claude Sonnet 5.5 leads Mistral Large 3 in Reasoning at #18 against #104.

Claude Sonnet 5.5 or Mistral Large 3 for Coding › Web dev?

As of Oct 14, 2026, Claude Sonnet 5.5 leads Mistral Large 3 in Coding › Web dev at #3 against #104.