# Claude 2.1 vs GPT-5.4 Pro

> GPT-5.4 Pro is the stronger model overall, scoring 58.8 to 24.9 on the Noometry Index.

- Canonical page: https://noometry.com/compare/claude-2-1-vs-gpt-5-4-pro
- Last updated: 2026-10-10
- Shared benchmarks: 3

## Summary

- They share 3 benchmarks with published results for both. Claude 2.1 scores higher in 0 categories and GPT-5.4 Pro in 4 categories; 4 gaps are clear of the uncertainty.
- The widest gap is in math, where GPT-5.4 Pro leads 72.0 to 9.6.
- The biggest single-benchmark swing is GPQA Diamond: 33% for Claude 2.1 and 94.6% for GPT-5.4 Pro.

## Snapshot

| | Claude 2.1 | GPT-5.4 Pro |
|---|---|---|
| Provider | Anthropic | OpenAI |
| Noometry Index | 24.9 | 58.8 |
| Rank | 340 | 16 |
| Context | — | 1.05M |
| Input $/M | — | $30 |
| Output $/M | — | $180 |
| Weights | Proprietary | Proprietary |

## Coding

- Claude 2.1: 25.8 (#322)
- GPT-5.4 Pro: 42.6 (#89)

| Benchmark | Claude 2.1 | GPT-5.4 Pro |
|---|---|---|
| WeirdML | 7.1% | 57.4% |

## Reasoning

- Claude 2.1: 20.6 (#216)
- GPT-5.4 Pro: 71.0 (#10)

| Benchmark | Claude 2.1 | GPT-5.4 Pro |
|---|---|---|
| Epoch Capabilities Index | 119.22 | 159.12 |
| ARC-AGI-2 | — | 83.3% |
| SimpleBench | — | 74.1% |
| ARC-AGI-1 | — | 94.5% |
| CritPt | — | 30% |
| Chess Puzzles | — | 58.6% |
| EnigmaEval | — | 23.8% |
| DTBench | 51% | — |
| ForecastBench | 54.2 | — |

## Math

- Claude 2.1: 9.6 (#309)
- GPT-5.4 Pro: 72.0 (#17)

| Benchmark | Claude 2.1 | GPT-5.4 Pro |
|---|---|---|
| FrontierMath (Tiers 1-3) | — | 82.5% |
| FrontierMath Tier 4 | — | 58.5% |
| OTIS Mock AIME 2024-2025 | 1.9% | — |
| FrontierMath (Feb 2025 set) | — | 50% |
| FrontierMath Tier 4 (v1) | — | 37.5% |

## Knowledge

- Claude 2.1: 15.5 (#287)
- GPT-5.4 Pro: 68.3 (#6)

| Benchmark | Claude 2.1 | GPT-5.4 Pro |
|---|---|---|
| GPQA Diamond | 33% | 94.6% |
| Humanity's Last Exam | — | 44.3% |
| SimpleQA Verified | — | 46.3% |
| Vectara Hallucination Rate | — | 8.3% |
| MMLU | 73.5% | — |

## FAQ

### Is Claude 2.1 better than GPT-5.4 Pro?

GPT-5.4 Pro is the stronger model overall, scoring 58.8 to 24.9 on the Noometry Index.

### Is Claude 2.1 or GPT-5.4 Pro better for coding?

GPT-5.4 Pro scores higher on coding benchmarks: 42.6 versus 25.8 in the Noometry coding category.

### How many benchmarks do Claude 2.1 and GPT-5.4 Pro share?

3 benchmarks have published results for both models. Claude 2.1 has 7 scored results on Noometry and GPT-5.4 Pro has 16.