# Chatgpt 4o Latest 20250326 vs Claude 3 Opus

> Chatgpt 4o Latest 20250326 is the stronger model overall, scoring 43.8 to 29.5 on the Noometry Index.

- Canonical page: https://noometry.com/compare/chatgpt-4o-vs-claude-3-opus
- Last updated: 2026-10-10
- Shared benchmarks: 19

## Summary

- They share 19 benchmarks with published results for both. Chatgpt 4o Latest 20250326 scores higher in 9 categories and Claude 3 Opus in 0 categories; 9 gaps are clear of the uncertainty.
- The widest gap is in math, where Chatgpt 4o Latest 20250326 leads 38.6 to 14.8.
- The biggest single-benchmark swing is Confabulations: 16.6% for Chatgpt 4o Latest 20250326 and 22.7% for Claude 3 Opus.

## Snapshot

| | Chatgpt 4o Latest 20250326 | Claude 3 Opus |
|---|---|---|
| Provider | OpenAI | Anthropic |
| Noometry Index | 43.8 | 29.5 |
| Rank | 82 | 310 |
| Context | — | — |
| Input $/M | — | — |
| Output $/M | — | — |
| Weights | Proprietary | Proprietary |

## Coding

- Chatgpt 4o Latest 20250326: 41.6 (#122)
- Claude 3 Opus: 32.9 (#267)

| Benchmark | Chatgpt 4o Latest 20250326 | Claude 3 Opus |
|---|---|---|
| LMArena Coding | 1413 | 1264 |
| WeirdML | — | 19.2% |
| BigCodeBench Instruct | — | 45.5% |
| LiveBench Coding | — | 38.6% |
| BigCodeBench Complete | — | 57.4% |
| HumanEval+ | — | 77.4% |
| MBPP+ | — | 73.3% |

## Agentic & Tool Use

- Chatgpt 4o Latest 20250326: —
- Claude 3 Opus: 24.6 (#116)

| Benchmark | Chatgpt 4o Latest 20250326 | Claude 3 Opus |
|---|---|---|
| Cybench | — | 10% |
| METR Time Horizons | — | 29.5% |

## Reasoning

- Chatgpt 4o Latest 20250326: 33.8 (#71)
- Claude 3 Opus: 14.6 (#324)

| Benchmark | Chatgpt 4o Latest 20250326 | Claude 3 Opus |
|---|---|---|
| LMArena Hard Prompts | 1424 | 1245 |
| SimpleBench | — | 23.5% |
| Kagi LLM Benchmark | 75% | — |
| Chess Puzzles | — | 5% |
| EnigmaEval | — | 0.8% |
| LiveBench Reasoning | — | 40.6% |
| DTBench | — | 61.6% |
| LiveBench Data Analysis | — | 57.9% |
| LMCA | — | 17% |
| Epoch Capabilities Index | — | 126.91 |
| ForecastBench | — | 58.4 |
| LiveBench | — | 49.2% |
| WinoGrande | — | 88.5% |

## Math

- Chatgpt 4o Latest 20250326: 38.6 (#134)
- Claude 3 Opus: 14.8 (#299)

| Benchmark | Chatgpt 4o Latest 20250326 | Claude 3 Opus |
|---|---|---|
| LMArena Math | 1407 | 1273 |
| OTIS Mock AIME 2024-2025 | — | 4.7% |
| LiveBench Math | — | 43.6% |
| MATH Level 5 | — | 37.5% |

## Knowledge

- Chatgpt 4o Latest 20250326: 39.2 (#137)
- Claude 3 Opus: 24.5 (#267)

| Benchmark | Chatgpt 4o Latest 20250326 | Claude 3 Opus |
|---|---|---|
| Confabulations | 16.6% | 22.7% |
| LMArena Expert | 1401 | 1223 |
| GPQA Diamond | — | 47.2% |
| SimpleQA Verified | — | 12.6% |
| MMLU | — | 84.6% |

## Multimodal

- Chatgpt 4o Latest 20250326: 39.6 (#58)
- Claude 3 Opus: 27.1 (#116)

| Benchmark | Chatgpt 4o Latest 20250326 | Claude 3 Opus |
|---|---|---|
| LMArena Vision | 1243 | 1023 |

## Multilingual

- Chatgpt 4o Latest 20250326: 52.9 (#76)
- Claude 3 Opus: 41.4 (#207)

| Benchmark | Chatgpt 4o Latest 20250326 | Claude 3 Opus |
|---|---|---|
| LMArena Non-English | 1419 | 1258 |
| LMArena Chinese | 1457 | 1248 |
| LMArena French | 1446 | 1275 |
| LMArena German | 1423 | 1258 |
| LMArena Japanese | 1405 | 1204 |
| LMArena Korean | 1396 | 1187 |
| LMArena Russian | 1429 | 1280 |
| LMArena Spanish | 1434 | 1246 |

## Instruction Following

- Chatgpt 4o Latest 20250326: 74.0 (#107)
- Claude 3 Opus: 64.1 (#228)

| Benchmark | Chatgpt 4o Latest 20250326 | Claude 3 Opus |
|---|---|---|
| LMArena Instruction Following | 1403 | 1248 |
| LiveBench Instruction Following | — | 63.9% |

## Long Context

- Chatgpt 4o Latest 20250326: 43.1 (#107)
- Claude 3 Opus: 38.2 (#202)

| Benchmark | Chatgpt 4o Latest 20250326 | Claude 3 Opus |
|---|---|---|
| LMArena Longer Query | 1413 | 1259 |

## Writing & Preference

- Chatgpt 4o Latest 20250326: 62.6 (#72)
- Claude 3 Opus: 47.2 (#213)

| Benchmark | Chatgpt 4o Latest 20250326 | Claude 3 Opus |
|---|---|---|
| LMArena Text | 1429 | 1262 |
| LMArena Creative Writing | 1405 | 1235 |
| LMArena Multi-Turn | 1454 | 1275 |
| EQ-Bench Creative Writing | 1501 | — |
| LiveBench Language | — | 50.4% |

## FAQ

### Is Chatgpt 4o Latest 20250326 better than Claude 3 Opus?

Chatgpt 4o Latest 20250326 is the stronger model overall, scoring 43.8 to 29.5 on the Noometry Index.

### Is Chatgpt 4o Latest 20250326 or Claude 3 Opus better for coding?

Chatgpt 4o Latest 20250326 scores higher on coding benchmarks: 41.6 versus 32.9 in the Noometry coding category.

### How many benchmarks do Chatgpt 4o Latest 20250326 and Claude 3 Opus share?

19 benchmarks have published results for both models. Chatgpt 4o Latest 20250326 has 21 scored results on Noometry and Claude 3 Opus has 46.