# GPT-5.5 vs Mistral Large 3

As of Oct 15, 2026, GPT-5.5 leads Mistral Large 3 in 5 of 5 shared categories: General LLM, Reasoning, Coding › Web dev, Long context, and Factuality.

GPT-5.5: $11.25 per 1M blended tokens.

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

GPT-5.5: closed weights.

Mistral Large 3: open weights.

- Which to pick, General LLM: As of Oct 15, 2026, GPT-5.5 leads Mistral Large 3 in General LLM at #22 against #132.
- Which to pick, Reasoning: As of Oct 15, 2026, GPT-5.5 leads Mistral Large 3 in Reasoning at #26 against #134.
- Which to pick, Coding › Web dev: As of Oct 15, 2026, GPT-5.5 leads Mistral Large 3 in Coding › Web dev at #48 against #118.
- Which to pick, Long context: As of Oct 15, 2026, GPT-5.5 leads Mistral Large 3 in Long context at #26 against #136.
- Which to pick, Factuality: As of Oct 15, 2026, GPT-5.5 leads Mistral Large 3 in Factuality at #5 against #96.

As of Oct 15, 2026, GPT-5.5 is near state of the art, rank #5 in Factuality (since Oct 15, 2026; sources LMArena Text factuality; methodology v1.0).

As of Oct 15, 2026, Mistral Large 3 is ranked #96 in Factuality (since Oct 15, 2026; sources LMArena Text factuality; methodology v1.0).