GPT-4 Turbo vs GPT-OSS 120B

Side-by-side benchmark comparison across knowledge, coding, math, and reasoning.

Quick Verdict

GPT-4 Turbo wins overall with a score of 50 vs 42 (8 point difference).GPT-4 Turbo wins 4 out of 4 categories.

Knowledge

GPT-4 Turbo

GPT-4 Turbo

58.5

GPT-OSS 120B

48.8

60
MMLU
51
60
GPQA
50
58
SuperGPQA
48
56
OpenBookQA
46

Coding

GPT-4 Turbo

GPT-4 Turbo

52

GPT-OSS 120B

43

52
HumanEval
43

Mathematics

GPT-4 Turbo

GPT-4 Turbo

59

GPT-OSS 120B

50

60
AIME 2023
51
62
AIME 2024
53
61
AIME 2025
52
56
HMMT Feb 2023
47
58
HMMT Feb 2024
49
57
HMMT Feb 2025
48
59
BRUMO 2025
50

Reasoning

GPT-4 Turbo

GPT-4 Turbo

57

GPT-OSS 120B

48

58
SimpleQA
49
56
MuSR
47

Frequently Asked Questions

Which is better, GPT-4 Turbo or GPT-OSS 120B?

GPT-4 Turbo scores higher overall with 50 vs 42, a difference of 8 points across all benchmarks.

Which is better for knowledge tasks, GPT-4 Turbo or GPT-OSS 120B?

GPT-4 Turbo leads in knowledge tasks with an average score of 58.5 vs 48.8.

Which is better for coding, GPT-4 Turbo or GPT-OSS 120B?

GPT-4 Turbo leads in coding with an average score of 52 vs 43.

Which is better for math, GPT-4 Turbo or GPT-OSS 120B?

GPT-4 Turbo leads in math with an average score of 59 vs 50.

Which is better for reasoning, GPT-4 Turbo or GPT-OSS 120B?

GPT-4 Turbo leads in reasoning with an average score of 57 vs 48.