Kimi K2 vs o1-pro

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

Kimi K2 has the cleaner overall profile here, landing at 35 versus 33. It is a real lead, but still close enough that category-level strengths matter more than the headline number.

o1-pro is the reasoning model in the pair, while Kimi K2 is not. That usually helps on harder chain-of-thought-heavy tests, but it can also mean more latency and more token spend in real use. o1-pro gives you the larger context window at 200K, compared with 128K for Kimi K2.

Quick Verdict

Pick Kimi K2 if you want the stronger benchmark profile. o1-pro only becomes the better choice if mathematics is the priority or you need the larger 200K context window.

Knowledge

o1-pro

Kimi K2

28.8

o1-pro

79

32
MMLU
-
31
GPQA
79
29
SuperGPQA
-
27
OpenBookQA
-
51
MMLU-Pro
-
3
HLE
-

Coding

Kimi K2
24
HumanEval
-
15
SWE-bench Verified
-
12
LiveCodeBench
-

Mathematics

o1-pro

Kimi K2

34.3

o1-pro

86

32
AIME 2023
-
34
AIME 2024
86
33
AIME 2025
-
28
HMMT Feb 2023
-
30
HMMT Feb 2024
-
29
HMMT Feb 2025
-
31
BRUMO 2025
-
57
MATH-500
-

Reasoning

Kimi K2
30
SimpleQA
-
28
MuSR
-
61
BBH
-

Instruction Following

Kimi K2
67
IFEval
-

Multilingual

Kimi K2
61
MGSM
-

Frequently Asked Questions

Which is better, Kimi K2 or o1-pro?

Kimi K2 is ahead overall, 35 to 33. The biggest single separator in this matchup is AIME 2024, where the scores are 34 and 86.

Which is better for knowledge tasks, Kimi K2 or o1-pro?

o1-pro has the edge for knowledge tasks in this comparison, averaging 79 versus 28.8. Inside this category, GPQA is the benchmark that creates the most daylight between them.

Which is better for math, Kimi K2 or o1-pro?

o1-pro has the edge for math in this comparison, averaging 86 versus 34.3. Inside this category, AIME 2024 is the benchmark that creates the most daylight between them.

Last updated: March 9, 2026

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