Model comparison
Chatgpt 4o Latest 20250326 vs Claude Sonnet 4
Chatgpt 4o Latest 20250326 is the stronger model overall, scoring 43.8 to 40.8 on the Noometry Index.
Last verified . 21 shared benchmarks.
Summary
- They share 21 benchmarks with published results for both. Chatgpt 4o Latest 20250326 scores higher in 6 categories and Claude Sonnet 4 in 3 categories; 9 gaps are clear of the uncertainty.
- The widest gap is in multimodal, where Chatgpt 4o Latest 20250326 leads 39.6 to 26.2.
Side by side
| Chatgpt 4o Latest 20250326 | Claude Sonnet 4 | |
|---|---|---|
| Provider | OpenAI | Anthropic |
| Noometry Index | 43.8 | 40.8 |
| Released | — | 2025-05-22 |
| Weights | Proprietary | Proprietary |
| Context window | — | 200K |
| Max output | — | 64K |
| Input $ / M tokens | — | $3 |
| Output $ / M tokens | — | $15 |
| Results tracked | 21 | 58 |
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Category by category
Coding Claude Sonnet 4 leads
Chatgpt 4o Latest 20250326: 41.6 (#122), Claude Sonnet 4: 43.5 (#88)
| Benchmark | Chatgpt 4o Latest 20250326 | Claude Sonnet 4 |
|---|---|---|
| LMArena Coding | 1413 | 1414 |
| SWE-bench Verified (bash only) | — | 64.9% |
| Aider Polyglot | — | 61.3% |
| SciCode | — | 40% |
| GSO | — | 4.9% |
| WeirdML | — | 46.1% |
| ALE-Bench | — | 655.35 |
Agentic & Tool Use Not comparable
Chatgpt 4o Latest 20250326: —, Claude Sonnet 4: 38.5 (#31)
| Benchmark | Chatgpt 4o Latest 20250326 | Claude Sonnet 4 |
|---|---|---|
| TheAgentCompany | — | 33.1% |
| Cybench | — | 35% |
| DeepResearch Bench | — | 46.6% |
| OSWorld | — | 43.9% |
| METR Time Horizons | — | 62% |
Reasoning Chatgpt 4o Latest 20250326 leads
Chatgpt 4o Latest 20250326: 33.8 (#71), Claude Sonnet 4: 22.9 (#187)
| Benchmark | Chatgpt 4o Latest 20250326 | Claude Sonnet 4 |
|---|---|---|
| Kagi LLM Benchmark | 75% | 73% |
| LMArena Hard Prompts | 1424 | 1372 |
| ARC-AGI-2 | — | 5.9% |
| SimpleBench | — | 45.5% |
| ARC-AGI-1 | — | 40% |
| CritPt | — | 0.3% |
| EnigmaEval | — | 3.1% |
| DTBench | — | 77.1% |
| LMCA | — | 29% |
| Epoch Capabilities Index | — | 141.69 |
| ForecastBench | — | 60.2 |
Math Claude Sonnet 4 leads
Chatgpt 4o Latest 20250326: 38.6 (#134), Claude Sonnet 4: 43.3 (#80)
| Benchmark | Chatgpt 4o Latest 20250326 | Claude Sonnet 4 |
|---|---|---|
| LMArena Math | 1407 | 1375 |
| OTIS Mock AIME 2024-2025 | — | 71.1% |
| Omni-MATH | — | 60.2% |
| MATH Level 5 | — | 84.4% |
| FrontierMath (Feb 2025 set) | — | 4.1% |
| FrontierMath Tier 4 (v1) | — | 0% |
Knowledge Claude Sonnet 4 leads
Chatgpt 4o Latest 20250326: 39.2 (#137), Claude Sonnet 4: 41.8 (#108)
| Benchmark | Chatgpt 4o Latest 20250326 | Claude Sonnet 4 |
|---|---|---|
| Confabulations | 16.6% | 13.2% |
| LMArena Expert | 1401 | 1372 |
| GPQA Diamond | — | 79.2% |
| Humanity's Last Exam | — | 7.8% |
| MMLU-Pro | — | 84.3% |
| Vectara Hallucination Rate | — | 10.3% |
| GPQA (HELM) | — | 70.6% |
Multimodal Chatgpt 4o Latest 20250326 leads
Chatgpt 4o Latest 20250326: 39.6 (#58), Claude Sonnet 4: 26.2 (#121)
| Benchmark | Chatgpt 4o Latest 20250326 | Claude Sonnet 4 |
|---|---|---|
| LMArena Vision | 1243 | 1191 |
| GeoBench | — | 37% |
| VPCT | — | 34% |
| MindCube | — | 44.8% |
Multilingual Chatgpt 4o Latest 20250326 leads
Chatgpt 4o Latest 20250326: 52.9 (#76), Claude Sonnet 4: 46.7 (#156)
| Benchmark | Chatgpt 4o Latest 20250326 | Claude Sonnet 4 |
|---|---|---|
| LMArena Non-English | 1419 | 1333 |
| LMArena Chinese | 1457 | 1350 |
| LMArena French | 1446 | 1363 |
| LMArena German | 1423 | 1331 |
| LMArena Japanese | 1405 | 1302 |
| LMArena Korean | 1396 | 1291 |
| LMArena Russian | 1429 | 1355 |
| LMArena Spanish | 1434 | 1357 |
Instruction Following Chatgpt 4o Latest 20250326 leads
Chatgpt 4o Latest 20250326: 74.0 (#107), Claude Sonnet 4: 71.7 (#145)
| Benchmark | Chatgpt 4o Latest 20250326 | Claude Sonnet 4 |
|---|---|---|
| LMArena Instruction Following | 1403 | 1376 |
| IFEval | — | 84% |
Long Context Chatgpt 4o Latest 20250326 leads
Chatgpt 4o Latest 20250326: 43.1 (#107), Claude Sonnet 4: 33.7 (#259)
| Benchmark | Chatgpt 4o Latest 20250326 | Claude Sonnet 4 |
|---|---|---|
| LMArena Longer Query | 1413 | 1398 |
| Fiction.LiveBench | — | 46.9% |
Writing & Preference Chatgpt 4o Latest 20250326 leads
Chatgpt 4o Latest 20250326: 62.6 (#72), Claude Sonnet 4: 57.1 (#132)
| Benchmark | Chatgpt 4o Latest 20250326 | Claude Sonnet 4 |
|---|---|---|
| LMArena Text | 1429 | 1351 |
| LMArena Creative Writing | 1405 | 1345 |
| EQ-Bench Creative Writing | 1501 | 1483 |
| LMArena Multi-Turn | 1454 | 1376 |
| Short-Story Creative Writing | — | 81.4% |
| WildBench | — | 83.8% |
Frequently asked questions
Is Chatgpt 4o Latest 20250326 better than Claude Sonnet 4?
Chatgpt 4o Latest 20250326 is the stronger model overall, scoring 43.8 to 40.8 on the Noometry Index.
Is Chatgpt 4o Latest 20250326 or Claude Sonnet 4 better for coding?
Claude Sonnet 4 scores higher on coding benchmarks: 43.5 versus 41.6 in the Noometry coding category.
How many benchmarks do Chatgpt 4o Latest 20250326 and Claude Sonnet 4 share?
21 benchmarks have published results for both models. Chatgpt 4o Latest 20250326 has 21 scored results on Noometry and Claude Sonnet 4 has 58.