Side-by-side benchmark comparison across knowledge, coding, math, and reasoning.
GPT-5 mini wins overall with a score of 68 vs 42 (26 point difference).GPT-5 mini wins 4 out of 4 categories.
GPT-5 mini
85
GPT-OSS 120B
48.8
GPT-5 mini
80
GPT-OSS 120B
43
GPT-5 mini
89
GPT-OSS 120B
50
GPT-5 mini
83
GPT-OSS 120B
48
GPT-5 mini scores higher overall with 68 vs 42, a difference of 26 points across all benchmarks.
GPT-5 mini leads in knowledge tasks with an average score of 85 vs 48.8.
GPT-5 mini leads in coding with an average score of 80 vs 43.
GPT-5 mini leads in math with an average score of 89 vs 50.
GPT-5 mini leads in reasoning with an average score of 83 vs 48.