Model comparison
Chatgpt 4o Latest 20250326 vs o3-pro
Chatgpt 4o Latest 20250326 and o3-pro score almost the same on the Noometry Index (43.8 vs 42.9), so choose on price, context window or the category you care about most.
Last verified . 2 shared benchmarks.
Summary
- They share 2 benchmarks with published results for both. Chatgpt 4o Latest 20250326 scores higher in 3 categories and o3-pro in 2 categories; 5 gaps are clear of the uncertainty.
- The widest gap is in long context, where o3-pro leads 72.2 to 43.1.
Side by side
| Chatgpt 4o Latest 20250326 | o3-pro | |
|---|---|---|
| Provider | OpenAI | OpenAI |
| Noometry Index | 43.8 | 42.9 |
| Released | — | 2025-06-10 |
| Weights | Proprietary | Proprietary |
| Context window | — | 200K |
| Max output | — | 100K |
| Input $ / M tokens | — | $20 |
| Output $ / M tokens | — | $80 |
| Results tracked | 21 | 12 |
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Category by category
Coding o3-pro leads
Chatgpt 4o Latest 20250326: 41.6 (#122), o3-pro: 55.5 (#24)
| Benchmark | Chatgpt 4o Latest 20250326 | o3-pro |
|---|---|---|
| Aider Polyglot | — | 84.9% |
| WeirdML | — | 58.2% |
| LMArena Coding | 1413 | — |
Reasoning Chatgpt 4o Latest 20250326 leads
Chatgpt 4o Latest 20250326: 33.8 (#71), o3-pro: 23.8 (#171)
| Benchmark | Chatgpt 4o Latest 20250326 | o3-pro |
|---|---|---|
| Kagi LLM Benchmark | 75% | 72.1% |
| ARC-AGI-2 | — | 4.9% |
| ARC-AGI-1 | — | 59.3% |
| LMArena Hard Prompts | 1424 | — |
| DTBench | — | 86.9% |
| LMCA | — | 38.5% |
| Epoch Capabilities Index | — | 147.42 |
Math Not comparable
Chatgpt 4o Latest 20250326: 38.6 (#134), o3-pro: —
| Benchmark | Chatgpt 4o Latest 20250326 | o3-pro |
|---|---|---|
| LMArena Math | 1407 | — |
Knowledge Chatgpt 4o Latest 20250326 leads
Chatgpt 4o Latest 20250326: 39.2 (#137), o3-pro: 29.5 (#238)
| Benchmark | Chatgpt 4o Latest 20250326 | o3-pro |
|---|---|---|
| Confabulations | 16.6% | 14.2% |
| Vectara Hallucination Rate | — | 23.3% |
| LMArena Expert | 1401 | — |
Multimodal Not comparable
Chatgpt 4o Latest 20250326: 39.6 (#58), o3-pro: —
| Benchmark | Chatgpt 4o Latest 20250326 | o3-pro |
|---|---|---|
| LMArena Vision | 1243 | — |
Multilingual Not comparable
Chatgpt 4o Latest 20250326: 52.9 (#76), o3-pro: —
| Benchmark | Chatgpt 4o Latest 20250326 | o3-pro |
|---|---|---|
| LMArena Non-English | 1419 | — |
| LMArena Chinese | 1457 | — |
| LMArena French | 1446 | — |
| LMArena German | 1423 | — |
| LMArena Japanese | 1405 | — |
| LMArena Korean | 1396 | — |
| LMArena Russian | 1429 | — |
| LMArena Spanish | 1434 | — |
Instruction Following Not comparable
Chatgpt 4o Latest 20250326: 74.0 (#107), o3-pro: —
| Benchmark | Chatgpt 4o Latest 20250326 | o3-pro |
|---|---|---|
| LMArena Instruction Following | 1403 | — |
Long Context o3-pro leads
Chatgpt 4o Latest 20250326: 43.1 (#107), o3-pro: 72.2 (#1)
| Benchmark | Chatgpt 4o Latest 20250326 | o3-pro |
|---|---|---|
| Fiction.LiveBench | — | 97.2% |
| LMArena Longer Query | 1413 | — |
Writing & Preference Chatgpt 4o Latest 20250326 leads
Chatgpt 4o Latest 20250326: 62.6 (#72), o3-pro: 57.1 (#133)
| Benchmark | Chatgpt 4o Latest 20250326 | o3-pro |
|---|---|---|
| LMArena Text | 1429 | — |
| LMArena Creative Writing | 1405 | — |
| Short-Story Creative Writing | — | 84.4% |
| EQ-Bench Creative Writing | 1501 | — |
| LMArena Multi-Turn | 1454 | — |
Frequently asked questions
Is Chatgpt 4o Latest 20250326 better than o3-pro?
Chatgpt 4o Latest 20250326 and o3-pro score almost the same on the Noometry Index (43.8 vs 42.9), so choose on price, context window or the category you care about most.
Is Chatgpt 4o Latest 20250326 or o3-pro better for coding?
o3-pro scores higher on coding benchmarks: 55.5 versus 41.6 in the Noometry coding category.
How many benchmarks do Chatgpt 4o Latest 20250326 and o3-pro share?
2 benchmarks have published results for both models. Chatgpt 4o Latest 20250326 has 21 scored results on Noometry and o3-pro has 12.