Model comparison
Claude 2 vs GPT-5 Pro
GPT-5 Pro is the stronger model overall, scoring 46.4 to 25.0 on the Noometry Index.
Last verified . 1 shared benchmarks.
Summary
- They share 1 benchmark with published results for both. Claude 2 scores higher in 0 categories and GPT-5 Pro in 3 categories; 3 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where GPT-5 Pro leads 56.7 to 16.9.
Side by side
| Claude 2 | GPT-5 Pro | |
|---|---|---|
| Provider | Anthropic | OpenAI |
| Noometry Index | 25.0 | 46.4 |
| Released | 2023-07-11 | 2025-10-06 |
| Weights | Proprietary | Proprietary |
| Context window | — | 400K |
| Max output | — | 272K |
| Input $ / M tokens | — | $15 |
| Output $ / M tokens | — | $120 |
| Results tracked | 8 | 12 |
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Category by category
Coding Not comparable
Claude 2: —, GPT-5 Pro: 44.0 (#80)
| Benchmark | Claude 2 | GPT-5 Pro |
|---|---|---|
| WeirdML | — | 60.4% |
| AlgoTune | — | 1.31 |
| HumanEval+ | 61.6% | — |
Reasoning GPT-5 Pro leads
Claude 2: 21.7 (#216), GPT-5 Pro: 38.9 (#62)
| Benchmark | Claude 2 | GPT-5 Pro |
|---|---|---|
| Epoch Capabilities Index | 120.13 | 150.28 |
| ARC-AGI-2 | — | 18.3% |
| SimpleBench | — | 61.6% |
| Kagi LLM Benchmark | — | 76.8% |
| ARC-AGI-1 | — | 70.2% |
| EnigmaEval | — | 18.8% |
| DTBench | 51.9% | — |
Math GPT-5 Pro leads
Claude 2: 9.3 (#320), GPT-5 Pro: 48.5 (#63)
| Benchmark | Claude 2 | GPT-5 Pro |
|---|---|---|
| FrontierMath (Tiers 1-3) | — | 55.8% |
| FrontierMath Tier 4 | — | 19.5% |
| OTIS Mock AIME 2024-2025 | 2.5% | — |
| MATH Level 5 | 11.7% | — |
| FrontierMath Tier 4 (v1) | — | 14.6% |
Knowledge GPT-5 Pro leads
Claude 2: 16.9 (#287), GPT-5 Pro: 56.7 (#42)
| Benchmark | Claude 2 | GPT-5 Pro |
|---|---|---|
| GPQA Diamond | 34.7% | — |
| Humanity's Last Exam | — | 31.6% |
| MMLU | 78.5% | — |
| TriviaQA | 87.5% | — |
Frequently asked questions
Is Claude 2 better than GPT-5 Pro?
GPT-5 Pro is the stronger model overall, scoring 46.4 to 25.0 on the Noometry Index.
How many benchmarks do Claude 2 and GPT-5 Pro share?
1 benchmark has published results for both models. Claude 2 has 8 scored results on Noometry and GPT-5 Pro has 12.