Side-by-side benchmark comparison across knowledge, coding, math, and reasoning.
GPT-5.1 wins overall with a score of 76 vs 42 (34 point difference).GPT-5.1 wins 4 out of 4 categories.
GPT-5.1
94
GPT-OSS 120B
48.8
GPT-5.1
89
GPT-OSS 120B
43
GPT-5.1
97.1
GPT-OSS 120B
50
GPT-5.1
92
GPT-OSS 120B
48
GPT-5.1 scores higher overall with 76 vs 42, a difference of 34 points across all benchmarks.
GPT-5.1 leads in knowledge tasks with an average score of 94 vs 48.8.
GPT-5.1 leads in coding with an average score of 89 vs 43.
GPT-5.1 leads in math with an average score of 97.1 vs 50.
GPT-5.1 leads in reasoning with an average score of 92 vs 48.