Side-by-side benchmark comparison across knowledge, coding, math, and reasoning.
GPT-5.3 Codex wins overall with a score of 85 vs 57 (28 point difference).GPT-5.3 Codex wins 4 out of 4 categories.
GPT-5.3 Codex
96
Mistral Large 2
66.5
GPT-5.3 Codex
95
Mistral Large 2
60
GPT-5.3 Codex
97.1
Mistral Large 2
67
GPT-5.3 Codex
94
Mistral Large 2
65
GPT-5.3 Codex scores higher overall with 85 vs 57, a difference of 28 points across all benchmarks.
GPT-5.3 Codex leads in knowledge tasks with an average score of 96 vs 66.5.
GPT-5.3 Codex leads in coding with an average score of 95 vs 60.
GPT-5.3 Codex leads in math with an average score of 97.1 vs 67.
GPT-5.3 Codex leads in reasoning with an average score of 94 vs 65.