Model comparison
Chatgpt 4o Latest 20250326 vs Grok 3
Chatgpt 4o Latest 20250326 is the stronger model overall, scoring 43.8 to 39.9 on the Noometry Index.
Last verified . 20 shared benchmarks.
Summary
- They share 20 benchmarks with published results for both. Chatgpt 4o Latest 20250326 scores higher in 5 categories and Grok 3 in 3 categories; 5 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Chatgpt 4o Latest 20250326 leads 33.8 to 13.7.
- The biggest single-benchmark swing is Kagi LLM Benchmark: 75% for Chatgpt 4o Latest 20250326 and 61.3% for Grok 3.
Side by side
| Chatgpt 4o Latest 20250326 | Grok 3 | |
|---|---|---|
| Provider | OpenAI | xAI |
| Noometry Index | 43.8 | 39.9 |
| Released | — | 2025-04-09 |
| Weights | Proprietary | Proprietary |
| Context window | — | — |
| Max output | — | — |
| Input $ / M tokens | — | — |
| Output $ / M tokens | — | — |
| Results tracked | 21 | 40 |
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Category by category
Coding Too close to call
Chatgpt 4o Latest 20250326: 41.6 (#122), Grok 3: 41.9 (#115)
| Benchmark | Chatgpt 4o Latest 20250326 | Grok 3 |
|---|---|---|
| LMArena Coding | 1413 | 1432 |
| Aider Polyglot | — | 53.3% |
| WeirdML | — | 37.2% |
Agentic & Tool Use Not comparable
Chatgpt 4o Latest 20250326: —, Grok 3: 30.5 (#76)
| Benchmark | Chatgpt 4o Latest 20250326 | Grok 3 |
|---|---|---|
| BALROG | — | 29.5% |
Reasoning Chatgpt 4o Latest 20250326 leads
Chatgpt 4o Latest 20250326: 33.8 (#71), Grok 3: 13.7 (#333)
| Benchmark | Chatgpt 4o Latest 20250326 | Grok 3 |
|---|---|---|
| Kagi LLM Benchmark | 75% | 61.3% |
| LMArena Hard Prompts | 1424 | 1434 |
| ARC-AGI-2 | — | 0% |
| SimpleBench | — | 36.1% |
| ARC-AGI-1 | — | 5.5% |
| Epoch Capabilities Index | — | 138.33 |
Math Too close to call
Chatgpt 4o Latest 20250326: 38.6 (#134), Grok 3: 38.0 (#145)
| Benchmark | Chatgpt 4o Latest 20250326 | Grok 3 |
|---|---|---|
| LMArena Math | 1407 | 1391 |
| OTIS Mock AIME 2024-2025 | — | 55.6% |
| Omni-MATH | — | 46.4% |
| MATH Level 5 | — | 88.7% |
| FrontierMath (Feb 2025 set) | — | 3.8% |
| FrontierMath Tier 4 (v1) | — | 0% |
Knowledge Grok 3 leads
Chatgpt 4o Latest 20250326: 39.2 (#137), Grok 3: 46.2 (#82)
| Benchmark | Chatgpt 4o Latest 20250326 | Grok 3 |
|---|---|---|
| Confabulations | 16.6% | 14.2% |
| LMArena Expert | 1401 | 1421 |
| GPQA Diamond | — | 75.8% |
| MMLU-Pro | — | 78.8% |
| Vectara Hallucination Rate | — | 5.8% |
| GPQA (HELM) | — | 65% |
Multimodal Not comparable
Chatgpt 4o Latest 20250326: 39.6 (#58), Grok 3: —
| Benchmark | Chatgpt 4o Latest 20250326 | Grok 3 |
|---|---|---|
| LMArena Vision | 1243 | — |
Multilingual Too close to call
Chatgpt 4o Latest 20250326: 52.9 (#76), Grok 3: 52.3 (#87)
| Benchmark | Chatgpt 4o Latest 20250326 | Grok 3 |
|---|---|---|
| LMArena Non-English | 1419 | 1410 |
| LMArena Chinese | 1457 | 1448 |
| LMArena French | 1446 | 1460 |
| LMArena German | 1423 | 1431 |
| LMArena Japanese | 1405 | 1387 |
| LMArena Korean | 1396 | 1373 |
| LMArena Russian | 1429 | 1416 |
| LMArena Spanish | 1434 | 1417 |
Instruction Following Grok 3 leads
Chatgpt 4o Latest 20250326: 74.0 (#107), Grok 3: 75.0 (#73)
| Benchmark | Chatgpt 4o Latest 20250326 | Grok 3 |
|---|---|---|
| LMArena Instruction Following | 1403 | 1409 |
| IFEval | — | 88.4% |
Long Context Chatgpt 4o Latest 20250326 leads
Chatgpt 4o Latest 20250326: 43.1 (#107), Grok 3: 38.7 (#192)
| Benchmark | Chatgpt 4o Latest 20250326 | Grok 3 |
|---|---|---|
| LMArena Longer Query | 1413 | 1439 |
| Fiction.LiveBench | — | 58.3% |
Writing & Preference Chatgpt 4o Latest 20250326 leads
Chatgpt 4o Latest 20250326: 62.6 (#72), Grok 3: 55.8 (#141)
| Benchmark | Chatgpt 4o Latest 20250326 | Grok 3 |
|---|---|---|
| LMArena Text | 1429 | 1426 |
| LMArena Creative Writing | 1405 | 1414 |
| EQ-Bench Creative Writing | 1501 | 1186 |
| LMArena Multi-Turn | 1454 | 1425 |
| Short-Story Creative Writing | — | 76.4% |
| WildBench | — | 84.9% |
Frequently asked questions
Is Chatgpt 4o Latest 20250326 better than Grok 3?
Chatgpt 4o Latest 20250326 is the stronger model overall, scoring 43.8 to 39.9 on the Noometry Index.
Is Chatgpt 4o Latest 20250326 or Grok 3 better for coding?
They score almost the same on coding (41.6 vs 41.9); test both on your own repository before choosing.
How many benchmarks do Chatgpt 4o Latest 20250326 and Grok 3 share?
20 benchmarks have published results for both models. Chatgpt 4o Latest 20250326 has 21 scored results on Noometry and Grok 3 has 40.