Model comparison
o3 vs Qwen2.5 Plus 1127
o3 is the stronger model overall, scoring 47.5 to 38.8 on the Noometry Index.
Last verified . 14 shared benchmarks.
Alibaba (Qwen)Summary
- They share 14 benchmarks with published results for both. o3 scores higher in 8 categories and Qwen2.5 Plus 1127 in 0 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where o3 leads 54.6 to 35.5.
Side by side
| o3 | Qwen2.5 Plus 1127 | |
|---|---|---|
| Provider | OpenAI | Alibaba (Qwen) |
| Noometry Index | 47.5 | 38.8 |
| Released | 2025-04-16 | — |
| Weights | Proprietary | Proprietary |
| Context window | 200K | — |
| Max output | 100K | — |
| Input $ / M tokens | $2 | — |
| Output $ / M tokens | $8 | — |
| Results tracked | 63 | 14 |
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Category by category
Coding o3 leads
o3: 46.8 (#64), Qwen2.5 Plus 1127: 38.5 (#175)
| Benchmark | o3 | Qwen2.5 Plus 1127 |
|---|---|---|
| LMArena Coding | 1408 | 1314 |
| SWE-bench Verified | 62.3% | — |
| SWE-bench Verified (bash only) | 58.4% | — |
| Aider Polyglot | 81.3% | — |
| GSO | 8.8% | — |
| WeirdML | 52.4% | — |
| CadEval | 74% | — |
| ALE-Bench | 933.55 | — |
Agentic & Tool Use Not comparable
o3: 34.5 (#44), Qwen2.5 Plus 1127: —
| Benchmark | o3 | Qwen2.5 Plus 1127 |
|---|---|---|
| Berkeley Function Calling Leaderboard | 63% | — |
| GDPval | 30.8% | — |
| DeepResearch Bench | 45.2% | — |
| OSWorld | 23% | — |
| LMArena Search | 1144 | — |
| METR Time Horizons | 65.4% | — |
Reasoning o3 leads
o3: 32.0 (#78), Qwen2.5 Plus 1127: 25.9 (#141)
| Benchmark | o3 | Qwen2.5 Plus 1127 |
|---|---|---|
| LMArena Hard Prompts | 1402 | 1299 |
| ARC-AGI-2 | 6.5% | — |
| SimpleBench | 53.1% | — |
| Kagi LLM Benchmark | 67.6% | — |
| ARC-AGI-1 | 60.8% | — |
| CritPt | 1.4% | — |
| Chess Puzzles | 38% | — |
| EnigmaEval | 13.1% | — |
| Mystery Game Puzzles | 29% | — |
| DTBench | 84.8% | — |
| LMCA | 39.7% | — |
| Epoch Capabilities Index | 146.86 | — |
| ForecastBench | 62.5 | — |
Math o3 leads
o3: 50.2 (#58), Qwen2.5 Plus 1127: 36.1 (#174)
| Benchmark | o3 | Qwen2.5 Plus 1127 |
|---|---|---|
| LMArena Math | 1426 | 1298 |
| FrontierMath (Tiers 1-3) | 33.3% | — |
| OTIS Mock AIME 2024-2025 | 84.4% | — |
| Omni-MATH | 71.4% | — |
| MATH Level 5 | 97.8% | — |
| FrontierMath (Feb 2025 set) | 18.7% | — |
| FrontierMath Tier 4 (v1) | 2.1% | — |
Knowledge o3 leads
o3: 54.6 (#52), Qwen2.5 Plus 1127: 35.5 (#183)
| Benchmark | o3 | Qwen2.5 Plus 1127 |
|---|---|---|
| LMArena Expert | 1402 | 1289 |
| GPQA Diamond | 81.8% | — |
| Humanity's Last Exam | 20.3% | — |
| SimpleQA Verified | 49.4% | — |
| MMLU-Pro | 85.9% | — |
| Confabulations | 14.4% | — |
| GPQA (HELM) | 75.3% | — |
Multimodal Not comparable
o3: 41.4 (#36), Qwen2.5 Plus 1127: —
| Benchmark | o3 | Qwen2.5 Plus 1127 |
|---|---|---|
| LMArena Vision | 1214 | — |
| GeoBench | 74% | — |
| VPCT | 52% | — |
Multilingual o3 leads
o3: 51.7 (#105), Qwen2.5 Plus 1127: 41.9 (#201)
| Benchmark | o3 | Qwen2.5 Plus 1127 |
|---|---|---|
| LMArena Non-English | 1401 | 1265 |
| LMArena Chinese | 1437 | 1314 |
| LMArena German | 1420 | 1231 |
| LMArena Japanese | 1403 | 1207 |
| LMArena Russian | 1406 | 1271 |
| LMArena French | 1430 | — |
| LMArena Korean | 1370 | — |
| LMArena Spanish | 1395 | — |
Instruction Following o3 leads
o3: 72.8 (#127), Qwen2.5 Plus 1127: 67.2 (#199)
| Benchmark | o3 | Qwen2.5 Plus 1127 |
|---|---|---|
| LMArena Instruction Following | 1368 | 1275 |
| IFEval | 86.9% | — |
Long Context o3 leads
o3: 53.3 (#6), Qwen2.5 Plus 1127: 39.2 (#184)
| Benchmark | o3 | Qwen2.5 Plus 1127 |
|---|---|---|
| LMArena Longer Query | 1372 | 1292 |
| Fiction.LiveBench | 88.9% | — |
| CL-bench | 17.8% | — |
Writing & Preference o3 leads
o3: 63.5 (#64), Qwen2.5 Plus 1127: 49.4 (#192)
| Benchmark | o3 | Qwen2.5 Plus 1127 |
|---|---|---|
| LMArena Text | 1410 | 1299 |
| LMArena Creative Writing | 1359 | 1262 |
| LMArena Multi-Turn | 1405 | 1299 |
| Short-Story Creative Writing | 83.9% | — |
| EQ-Bench Creative Writing | 1676 | — |
| WildBench | 86.1% | — |
Frequently asked questions
Is o3 better than Qwen2.5 Plus 1127?
o3 is the stronger model overall, scoring 47.5 to 38.8 on the Noometry Index.
Is o3 or Qwen2.5 Plus 1127 better for coding?
o3 scores higher on coding benchmarks: 46.8 versus 38.5 in the Noometry coding category.
How many benchmarks do o3 and Qwen2.5 Plus 1127 share?
14 benchmarks have published results for both models. o3 has 63 scored results on Noometry and Qwen2.5 Plus 1127 has 14.