Claude 3 Opus vs o1-pro

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

Claude 3 Opus is clearly ahead on the aggregate, 53 to 33. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.

o1-pro is the reasoning model in the pair, while Claude 3 Opus 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.

Quick Verdict

Pick Claude 3 Opus if you want the stronger benchmark profile. o1-pro only becomes the better choice if knowledge is the priority or you want the stronger reasoning-first profile.

Knowledge

o1-pro

Claude 3 Opus

50.2

o1-pro

79

61
MMLU
-
61
GPQA
79
59
SuperGPQA
-
57
OpenBookQA
-
62
MMLU-Pro
-
1
HLE
-

Coding

Claude 3 Opus
53
HumanEval
-
10
SWE-bench Verified
-
20
LiveCodeBench
-

Mathematics

o1-pro

Claude 3 Opus

61.6

o1-pro

86

61
AIME 2023
-
63
AIME 2024
86
62
AIME 2025
-
57
HMMT Feb 2023
-
59
HMMT Feb 2024
-
58
HMMT Feb 2025
-
60
BRUMO 2025
-
73
MATH-500
-

Reasoning

Claude 3 Opus
59
SimpleQA
-
57
MuSR
-
74
BBH
-

Instruction Following

Claude 3 Opus
77
IFEval
-

Multilingual

Claude 3 Opus
73
MGSM
-

Frequently Asked Questions

Which is better, Claude 3 Opus or o1-pro?

Claude 3 Opus is ahead overall, 53 to 33. The biggest single separator in this matchup is AIME 2024, where the scores are 63 and 86.

Which is better for knowledge tasks, Claude 3 Opus or o1-pro?

o1-pro has the edge for knowledge tasks in this comparison, averaging 79 versus 50.2. Inside this category, GPQA is the benchmark that creates the most daylight between them.

Which is better for math, Claude 3 Opus or o1-pro?

o1-pro has the edge for math in this comparison, averaging 86 versus 61.6. Inside this category, AIME 2024 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.