Model comparison
Chatgpt 4o Latest 20250326 vs Grok 4.6
Grok 4.6 is the stronger model overall, scoring 56.9 to 43.8 on the Noometry Index.
Last verified . 18 shared benchmarks.
Summary
- They share 18 benchmarks with published results for both. Chatgpt 4o Latest 20250326 scores higher in 1 category and Grok 4.6 in 8 categories; 7 gaps are clear of the uncertainty.
- The widest gap is in math, where Grok 4.6 leads 67.0 to 38.6.
Side by side
| Chatgpt 4o Latest 20250326 | Grok 4.6 | |
|---|---|---|
| Provider | OpenAI | xAI |
| Noometry Index | 43.8 | 56.9 |
| Released | — | 2026-08-12 |
| Weights | Proprietary | Proprietary |
| Context window | — | 500K |
| Max output | — | 500K |
| Input $ / M tokens | — | $2 |
| Output $ / M tokens | — | $6 |
| Results tracked | 21 | 49 |
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Category by category
Coding Grok 4.6 leads
Chatgpt 4o Latest 20250326: 41.6 (#122), Grok 4.6: 58.5 (#16)
| Benchmark | Chatgpt 4o Latest 20250326 | Grok 4.6 |
|---|---|---|
| LMArena Coding | 1413 | 1465 |
| DeepSWE | — | 67.5% |
| FrontierCode | — | 48% |
| CursorBench | — | 41.4% |
| LMArena WebDev | — | 1617 |
| FrontierSWE | — | 25.3% |
| SciCode | — | 56.5% |
| WeirdML | — | 67.3% |
| ALE-Bench | — | 1,508 |
Agentic & Tool Use Not comparable
Chatgpt 4o Latest 20250326: —, Grok 4.6: 39.4 (#27)
| Benchmark | Chatgpt 4o Latest 20250326 | Grok 4.6 |
|---|---|---|
| APEX-Agents | — | 65.3% |
| GDP.pdf | — | 17.2% |
| Vending-Bench 2 | — | 9,047 |
Reasoning Grok 4.6 leads
Chatgpt 4o Latest 20250326: 33.8 (#71), Grok 4.6: 61.4 (#20)
| Benchmark | Chatgpt 4o Latest 20250326 | Grok 4.6 |
|---|---|---|
| LMArena Hard Prompts | 1424 | 1447 |
| ARC-AGI-2 | — | 67.1% |
| SimpleBench | — | 75.9% |
| Kagi LLM Benchmark | 75% | — |
| NYT Connections (extended) | — | 80% |
| ARC-AGI-1 | — | 87.5% |
| CritPt | — | 19.7% |
| Chess Puzzles | — | 40% |
| EBR-Bench | — | 30.5% |
| Mystery Game Puzzles | — | 34% |
| DTBench | — | 97.3% |
| LMCA | — | 48.5% |
| Epoch Capabilities Index | — | 156.44 |
Math Grok 4.6 leads
Chatgpt 4o Latest 20250326: 38.6 (#134), Grok 4.6: 67.0 (#24)
| Benchmark | Chatgpt 4o Latest 20250326 | Grok 4.6 |
|---|---|---|
| LMArena Math | 1407 | 1423 |
| FrontierMath (Tiers 1-3) | — | 66% |
| FrontierMath Tier 4 | — | 31.7% |
| OTIS Mock AIME 2024-2025 | — | 99.2% |
| ProofBench | — | 51% |
Knowledge Grok 4.6 leads
Chatgpt 4o Latest 20250326: 39.2 (#137), Grok 4.6: 63.3 (#20)
| Benchmark | Chatgpt 4o Latest 20250326 | Grok 4.6 |
|---|---|---|
| LMArena Expert | 1401 | 1467 |
| GPQA Diamond | — | 94% |
| SimpleQA Verified | — | 49.3% |
| Confabulations | 16.6% | — |
Multimodal Grok 4.6 leads
Chatgpt 4o Latest 20250326: 39.6 (#58), Grok 4.6: 43.6 (#23)
| Benchmark | Chatgpt 4o Latest 20250326 | Grok 4.6 |
|---|---|---|
| LMArena Vision | 1243 | 1263 |
| Blueprint-Bench 2 | — | 33.2% |
| Furniture Assembly | — | 40% |
| LMArena Document | — | 1452 |
Multilingual Too close to call
Chatgpt 4o Latest 20250326: 52.9 (#76), Grok 4.6: 53.0 (#74)
| Benchmark | Chatgpt 4o Latest 20250326 | Grok 4.6 |
|---|---|---|
| LMArena Non-English | 1419 | 1420 |
| LMArena Chinese | 1457 | 1480 |
| LMArena French | 1446 | 1461 |
| LMArena German | 1423 | 1431 |
| LMArena Japanese | 1405 | 1376 |
| LMArena Korean | 1396 | 1397 |
| LMArena Russian | 1429 | 1422 |
| LMArena Spanish | 1434 | 1404 |
Instruction Following Grok 4.6 leads
Chatgpt 4o Latest 20250326: 74.0 (#107), Grok 4.6: 75.4 (#63)
| Benchmark | Chatgpt 4o Latest 20250326 | Grok 4.6 |
|---|---|---|
| LMArena Instruction Following | 1403 | 1431 |
Long Context Grok 4.6 leads
Chatgpt 4o Latest 20250326: 43.1 (#107), Grok 4.6: 44.5 (#66)
| Benchmark | Chatgpt 4o Latest 20250326 | Grok 4.6 |
|---|---|---|
| LMArena Longer Query | 1413 | 1454 |
Writing & Preference Too close to call
Chatgpt 4o Latest 20250326: 62.6 (#72), Grok 4.6: 62.3 (#80)
| Benchmark | Chatgpt 4o Latest 20250326 | Grok 4.6 |
|---|---|---|
| LMArena Text | 1429 | 1428 |
| LMArena Creative Writing | 1405 | 1428 |
| LMArena Multi-Turn | 1454 | 1425 |
| EQ-Bench Creative Writing | 1501 | — |
Frequently asked questions
Is Chatgpt 4o Latest 20250326 better than Grok 4.6?
Grok 4.6 is the stronger model overall, scoring 56.9 to 43.8 on the Noometry Index.
Is Chatgpt 4o Latest 20250326 or Grok 4.6 better for coding?
Grok 4.6 scores higher on coding benchmarks: 58.5 versus 41.6 in the Noometry coding category.
How many benchmarks do Chatgpt 4o Latest 20250326 and Grok 4.6 share?
18 benchmarks have published results for both models. Chatgpt 4o Latest 20250326 has 21 scored results on Noometry and Grok 4.6 has 49.