GPT-OSS 120B vs Grok 4.1

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

Quick Verdict

Grok 4.1 wins overall with a score of 84 vs 42 (42 point difference).Grok 4.1 wins 4 out of 4 categories.

Knowledge

Grok 4.1

GPT-OSS 120B

48.8

Grok 4.1

96

51
MMLU
99
50
GPQA
97
48
SuperGPQA
95
46
OpenBookQA
93

Coding

Grok 4.1

GPT-OSS 120B

43

Grok 4.1

91

43
HumanEval
91

Mathematics

Grok 4.1

GPT-OSS 120B

50

Grok 4.1

97.1

51
AIME 2023
99
53
AIME 2024
99
52
AIME 2025
98
47
HMMT Feb 2023
95
49
HMMT Feb 2024
97
48
HMMT Feb 2025
96
50
BRUMO 2025
96

Reasoning

Grok 4.1

GPT-OSS 120B

48

Grok 4.1

94

49
SimpleQA
95
47
MuSR
93

Frequently Asked Questions

Which is better, GPT-OSS 120B or Grok 4.1?

Grok 4.1 scores higher overall with 84 vs 42, a difference of 42 points across all benchmarks.

Which is better for knowledge tasks, GPT-OSS 120B or Grok 4.1?

Grok 4.1 leads in knowledge tasks with an average score of 96 vs 48.8.

Which is better for coding, GPT-OSS 120B or Grok 4.1?

Grok 4.1 leads in coding with an average score of 91 vs 43.

Which is better for math, GPT-OSS 120B or Grok 4.1?

Grok 4.1 leads in math with an average score of 97.1 vs 50.

Which is better for reasoning, GPT-OSS 120B or Grok 4.1?

Grok 4.1 leads in reasoning with an average score of 94 vs 48.