o1 vs DeepSeek-R1

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

o1 is clearly ahead on the aggregate, 51 to 43. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.

o1's sharpest advantage is in knowledge, where it averages 83.8 against 38.8. The single biggest benchmark swing on the page is MMLU, 91.8 to 44.

o1 is also the more expensive model on tokens at $15.00 input / $60.00 output per 1M tokens, versus $0.55 input / $2.19 output per 1M tokens for DeepSeek-R1. That is roughly 27.4x on output cost alone. o1 gives you the larger context window at 200K, compared with 128K for DeepSeek-R1.

Quick Verdict

Pick o1 if you want the stronger benchmark profile. DeepSeek-R1 only becomes the better choice if you want the cheaper token bill.

Knowledge

o1

o1

83.8

DeepSeek-R1

38.8

91.8
MMLU
44
75.7
GPQA
43
-
SuperGPQA
41
-
OpenBookQA
39
-
MMLU-Pro
52
-
HLE
14

Coding

o1

o1

41

DeepSeek-R1

24

41
SWE-bench Verified
17
-
HumanEval
36
-
LiveCodeBench
19

Mathematics

o1

o1

74.3

DeepSeek-R1

45.6

74.3
AIME 2024
46
-
AIME 2023
44
-
AIME 2025
45
-
HMMT Feb 2023
40
-
HMMT Feb 2024
42
-
HMMT Feb 2025
41
-
BRUMO 2025
43
-
MATH-500
64

Reasoning

DeepSeek-R1
-
SimpleQA
42
-
MuSR
40
-
BBH
66

Instruction Following

o1

o1

92.2

DeepSeek-R1

69

92.2
IFEval
69

Multilingual

DeepSeek-R1
-
MGSM
61

Frequently Asked Questions

Which is better, o1 or DeepSeek-R1?

o1 is ahead overall, 51 to 43. The biggest single separator in this matchup is MMLU, where the scores are 91.8 and 44.

Which is better for knowledge tasks, o1 or DeepSeek-R1?

o1 has the edge for knowledge tasks in this comparison, averaging 83.8 versus 38.8. Inside this category, MMLU is the benchmark that creates the most daylight between them.

Which is better for coding, o1 or DeepSeek-R1?

o1 has the edge for coding in this comparison, averaging 41 versus 24. Inside this category, SWE-bench Verified is the benchmark that creates the most daylight between them.

Which is better for math, o1 or DeepSeek-R1?

o1 has the edge for math in this comparison, averaging 74.3 versus 45.6. Inside this category, AIME 2024 is the benchmark that creates the most daylight between them.

Which is better for instruction following, o1 or DeepSeek-R1?

o1 has the edge for instruction following in this comparison, averaging 92.2 versus 69. Inside this category, IFEval is the benchmark that creates the most daylight between them.

Last updated: March 9, 2026

Weekly LLM Benchmark Digest

Get notified when new models drop, benchmark scores change, or the leaderboard shifts. One email per week.

Free. No spam. Unsubscribe anytime. We only store derived location metadata for consent routing.