# Claude 2.1 vs GPT-5.2 Pro

> GPT-5.2 Pro is the stronger model overall, scoring 52.2 to 24.9 on the Noometry Index.

- Canonical page: https://noometry.com/compare/claude-2-1-vs-gpt-5-2-pro
- Last updated: 2026-10-10
- Shared benchmarks: 1

## Summary

- They share 1 benchmark with published results for both. Claude 2.1 scores higher in 0 categories and GPT-5.2 Pro in 2 categories; 2 gaps are clear of the uncertainty.
- The widest gap is in math, where GPT-5.2 Pro leads 64.8 to 9.6.

## Snapshot

| | Claude 2.1 | GPT-5.2 Pro |
|---|---|---|
| Provider | Anthropic | OpenAI |
| Noometry Index | 24.9 | 52.2 |
| Rank | 340 | 34 |
| Context | — | 400K |
| Input $/M | — | $21 |
| Output $/M | — | $168 |
| Weights | Proprietary | Proprietary |

## Coding

- Claude 2.1: 25.8 (#322)
- GPT-5.2 Pro: —

| Benchmark | Claude 2.1 | GPT-5.2 Pro |
|---|---|---|
| WeirdML | 7.1% | — |

## Reasoning

- Claude 2.1: 20.6 (#216)
- GPT-5.2 Pro: 51.8 (#31)

| Benchmark | Claude 2.1 | GPT-5.2 Pro |
|---|---|---|
| Epoch Capabilities Index | 119.22 | 155.41 |
| ARC-AGI-2 | — | 54.2% |
| SimpleBench | — | 57.4% |
| NYT Connections (extended) | — | 79.3% |
| ARC-AGI-1 | — | 90.5% |
| DTBench | 51% | — |
| ForecastBench | 54.2 | — |

## Math

- Claude 2.1: 9.6 (#309)
- GPT-5.2 Pro: 64.8 (#23)

| Benchmark | Claude 2.1 | GPT-5.2 Pro |
|---|---|---|
| FrontierMath (Tiers 1-3) | — | 74% |
| FrontierMath Tier 4 | — | 46% |
| OTIS Mock AIME 2024-2025 | 1.9% | — |
| FrontierMath Tier 4 (v1) | — | 31.3% |

## Knowledge

- Claude 2.1: 15.5 (#287)
- GPT-5.2 Pro: —

| Benchmark | Claude 2.1 | GPT-5.2 Pro |
|---|---|---|
| GPQA Diamond | 33% | — |
| MMLU | 73.5% | — |

## FAQ

### Is Claude 2.1 better than GPT-5.2 Pro?

GPT-5.2 Pro is the stronger model overall, scoring 52.2 to 24.9 on the Noometry Index.

### How many benchmarks do Claude 2.1 and GPT-5.2 Pro share?

1 benchmark has published results for both models. Claude 2.1 has 7 scored results on Noometry and GPT-5.2 Pro has 8.