# Claude 2 vs o1-pro

> o1-pro is the stronger model overall, scoring 31.5 to 25.0 on the Noometry Index.

- Canonical page: https://noometry.com/compare/claude-2-vs-o1-pro
- Last updated: 2026-10-11
- Shared benchmarks: 0

## Summary

- The widest gap is in knowledge, where o1-pro leads 29.7 to 16.9.

## Snapshot

| | Claude 2 | o1-pro |
|---|---|---|
| Provider | Anthropic | OpenAI |
| Noometry Index | 25.0 | 31.5 |
| Rank | 346 | 271 |
| Context | — | 200K |
| Input $/M | — | $150 |
| Output $/M | — | $600 |
| Weights | Proprietary | Proprietary |

## Coding

- Claude 2: —
- o1-pro: —

| Benchmark | Claude 2 | o1-pro |
|---|---|---|
| HumanEval+ | 61.6% | — |

## Reasoning

- Claude 2: 21.7 (#216)
- o1-pro: 20.4 (#239)

| Benchmark | Claude 2 | o1-pro |
|---|---|---|
| ARC-AGI-1 | — | 23.3% |
| EnigmaEval | — | 6.1% |
| DTBench | 51.9% | — |
| Epoch Capabilities Index | 120.13 | — |

## Math

- Claude 2: 9.3 (#320)
- o1-pro: —

| Benchmark | Claude 2 | o1-pro |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 2.5% | — |
| MATH Level 5 | 11.7% | — |

## Knowledge

- Claude 2: 16.9 (#287)
- o1-pro: 29.7 (#234)

| Benchmark | Claude 2 | o1-pro |
|---|---|---|
| GPQA Diamond | 34.7% | — |
| Humanity's Last Exam | — | 8.1% |
| MMLU | 78.5% | — |
| TriviaQA | 87.5% | — |

## FAQ

### Is Claude 2 better than o1-pro?

o1-pro is the stronger model overall, scoring 31.5 to 25.0 on the Noometry Index.

### How many benchmarks do Claude 2 and o1-pro share?

0 benchmarks have published results for both models. Claude 2 has 8 scored results on Noometry and o1-pro has 3.