GPT-5.5 vs Mistral Large 4
As of Oct 15, 2026, GPT-5.5 leads Mistral Large 4 in 5 of 6 shared categories: General LLM, Reasoning, Science, Long context, and Factuality.
GPT-5.5
Close. Near-SOTA in Factuality, rank #5.
Mistral Large 4
#38 Best current rank: #38 in Coding › Web dev, as of Oct 15, 2026.
| Category | GPT-5.5 | Mistral Large 4 |
|---|---|---|
| General LLM | #22 · Was SOTA · General LLM Margin 11.702127659574472 LMArena leaderboard dataset · Oct 13, 2026 | #101 · #101 in General LLM Margin 53.723404255319146 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #26 · #26 in Reasoning Margin 14.36170212765957 LMArena leaderboard dataset · Oct 13, 2026 | #98 · #98 in Reasoning Margin 52.659574468085104 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 | #30 · #30 in Science Margin — Epoch AI benchmarking hub · Apr 23, 2026 | #45 · #45 in Science Margin — Epoch AI benchmarking hub · Oct 6, 2026 |
| Coding | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Coding › Web dev | #48 · #48 in Coding › Web dev Margin 37.6 LMArena leaderboard dataset · Oct 13, 2026 | #38 · #38 in Coding › Web dev Margin 29.599999999999994 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #26 · Was SOTA · Long context Margin 13.829787234042556 LMArena leaderboard dataset · Oct 13, 2026 | #108 · #108 in Long context Margin 57.4468085106383 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #10 · Was SOTA · Vision Margin 28.94736842105263 Epoch AI benchmarking hub · Apr 23, 2026 | — |
| Factuality | #5 · Near-SOTA · Factuality Margin 3.4883720930232442 LMArena leaderboard dataset · Oct 13, 2026 | #100 · #100 in Factuality Margin 58.72093023255814 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | #7 · #7 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Apr 23, 2026 | — |
GPT-5.5: $11.25 per 1M blended tokens.
Mistral Large 4: $1.0324999999999998 per 1M blended tokens.
GPT-5.5: closed weights.
Mistral Large 4: closed weights.
General LLM: As of Oct 15, 2026, GPT-5.5 leads Mistral Large 4 in General LLM at #22 against #101.
Reasoning: As of Oct 15, 2026, GPT-5.5 leads Mistral Large 4 in Reasoning at #26 against #98.
Science: As of Oct 15, 2026, GPT-5.5 leads Mistral Large 4 in Science at #30 against #45.
Coding › Web dev: As of Oct 15, 2026, Mistral Large 4 leads GPT-5.5 in Coding › Web dev at #38 against #48.
Long context: As of Oct 15, 2026, GPT-5.5 leads Mistral Large 4 in Long context at #26 against #108.
Factuality: As of Oct 15, 2026, GPT-5.5 leads Mistral Large 4 in Factuality at #5 against #100.
GPT-5.5 or Mistral Large 4?
As of Oct 15, 2026, GPT-5.5 leads Mistral Large 4 in 5 of 6 shared categories: General LLM, Reasoning, Science, Long context, and Factuality.
GPT-5.5 or Mistral Large 4 for General LLM?
As of Oct 15, 2026, GPT-5.5 leads Mistral Large 4 in General LLM at #22 against #101.
GPT-5.5 or Mistral Large 4 for Reasoning?
As of Oct 15, 2026, GPT-5.5 leads Mistral Large 4 in Reasoning at #26 against #98.
GPT-5.5 or Mistral Large 4 for Science?
As of Oct 15, 2026, GPT-5.5 leads Mistral Large 4 in Science at #30 against #45.