Noometry

Model comparison

Claude Opus 4.1 vs o1-pro

Claude Opus 4.1 is the stronger model overall, scoring 41.0 to 31.5 on the Noometry Index.

Last verified . 2 shared benchmarks.

Claude Opus 4.1 Anthropic

41.0

Rank #142 Confirmed

o1-pro OpenAI

31.5

Rank #271 Reported

Summary

  • They share 2 benchmarks with published results for both. Claude Opus 4.1 scores higher in 2 categories and o1-pro in 0 categories; 2 gaps are clear of the uncertainty.
  • The widest gap is in knowledge, where Claude Opus 4.1 leads 42.0 to 29.7.
  • Claude Opus 4.1 is cheaper at $15 / $75 per million input/output tokens, against $150 / $600 for o1-pro.

Side by side

Claude Opus 4.1o1-pro
ProviderAnthropicOpenAI
Noometry Index41.031.5
Released2025-08-052025-03-19
WeightsProprietaryProprietary
Context window200K200K
Max output32K100K
Input $ / M tokens$15$150
Output $ / M tokens$75$600
Results tracked483

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Category by category

Coding Not comparable

Claude Opus 4.1: 44.4 (#73), o1-pro: —

BenchmarkClaude Opus 4.1o1-pro
SWE-bench Verified73.3%—
LMArena WebDev1390—
WeirdML45.9%—
LMArena Coding1479—
ALE-Bench674.77—
AlgoTune1.34—

Agentic & Tool Use Not comparable

Claude Opus 4.1: 35.0 (#41), o1-pro: —

BenchmarkClaude Opus 4.1o1-pro
Terminal-Bench38%—
GDPval43.6%—
Cybench42%—
DeepResearch Bench48.3%—
LMArena Search1148—
METR Time Horizons66.8%—

Reasoning Claude Opus 4.1 leads

Claude Opus 4.1: 32.2 (#76), o1-pro: 20.4 (#239)

BenchmarkClaude Opus 4.1o1-pro
EnigmaEval7.2%6.1%
SimpleBench60%—
ARC-AGI-1—23.3%
Chess Puzzles7%—
EBR-Bench7.9%—
LMArena Hard Prompts1443—
Mystery Game Puzzles21%—
DTBench80%—
LMCA37.1%—
Epoch Capabilities Index144.12—
ForecastBench62—

Math Not comparable

Claude Opus 4.1: 22.3 (#277), o1-pro: —

BenchmarkClaude Opus 4.1o1-pro
FrontierMath (Tiers 1-3)12.6%—
FrontierMath Tier 42.4%—
OTIS Mock AIME 2024-202568.9%—
LMArena Math1431—
FrontierMath (Feb 2025 set)7.2%—
FrontierMath Tier 4 (v1)4.2%—

Knowledge Claude Opus 4.1 leads

Claude Opus 4.1: 42.0 (#101), o1-pro: 29.7 (#234)

BenchmarkClaude Opus 4.1o1-pro
Humanity's Last Exam11.5%8.1%
GPQA Diamond77.3%—
Confabulations17.1%—
Vectara Hallucination Rate11.8%—
LMArena Expert1439—

Multimodal Not comparable

Claude Opus 4.1: 26.8 (#119), o1-pro: —

BenchmarkClaude Opus 4.1o1-pro
VPCT35%—

Multilingual Not comparable

Claude Opus 4.1: 52.0 (#95), o1-pro: —

BenchmarkClaude Opus 4.1o1-pro
LMArena Non-English1405—
LMArena Chinese1427—
LMArena French1431—
LMArena German1413—
LMArena Japanese1378—
LMArena Korean1380—
LMArena Russian1422—
LMArena Spanish1448—

Instruction Following Not comparable

Claude Opus 4.1: 75.6 (#58), o1-pro: —

BenchmarkClaude Opus 4.1o1-pro
LMArena Instruction Following1435—

Long Context Not comparable

Claude Opus 4.1: 44.5 (#63), o1-pro: —

BenchmarkClaude Opus 4.1o1-pro
LMArena Longer Query1455—

Writing & Preference Not comparable

Claude Opus 4.1: 62.4 (#74), o1-pro: —

BenchmarkClaude Opus 4.1o1-pro
LMArena Text1419—
LMArena Creative Writing1412—
Short-Story Creative Writing84.7%—
LMArena Multi-Turn1444—

Frequently asked questions

Is Claude Opus 4.1 better than o1-pro?

Claude Opus 4.1 is the stronger model overall, scoring 41.0 to 31.5 on the Noometry Index.

Which is cheaper, Claude Opus 4.1 or o1-pro?

Claude Opus 4.1 is cheaper. It lists at $15 per million input tokens and $75 per million output tokens; o1-pro lists at $150 and $600.

Which has the bigger context window?

Both accept 200K tokens.

How many benchmarks do Claude Opus 4.1 and o1-pro share?

2 benchmarks have published results for both models. Claude Opus 4.1 has 48 scored results on Noometry and o1-pro has 3.

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