Model comparison
o3-pro vs phi-3-medium 14B
o3-pro is the stronger model overall, scoring 42.9 to 29.7 on the Noometry Index.
Last verified . 1 shared benchmarks.
MicrosoftSummary
- They share 1 benchmark with published results for both. o3-pro scores higher in 2 categories and phi-3-medium 14B in 0 categories; 2 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where o3-pro leads 29.5 to 9.1.
- phi-3-medium 14B has downloadable open weights; the other is API-only.
Side by side
| o3-pro | phi-3-medium 14B | |
|---|---|---|
| Provider | OpenAI | Microsoft |
| Noometry Index | 42.9 | 29.7 |
| Released | 2025-06-10 | 2024-04-23 |
| Weights | Proprietary | Open |
| Context window | 200K | — |
| Max output | 100K | — |
| Input $ / M tokens | $20 | — |
| Output $ / M tokens | $80 | — |
| Results tracked | 12 | 13 |
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Category by category
Coding o3-pro leads
o3-pro: 55.5 (#24), phi-3-medium 14B: 36.8 (#201)
| Benchmark | o3-pro | phi-3-medium 14B |
|---|---|---|
| Aider Polyglot | 84.9% | — |
| WeirdML | 58.2% | — |
| BigCodeBench Instruct | — | 37.6% |
| BigCodeBench Complete | — | 48.7% |
Reasoning Not comparable
o3-pro: 23.8 (#171), phi-3-medium 14B: —
| Benchmark | o3-pro | phi-3-medium 14B |
|---|---|---|
| Epoch Capabilities Index | 147.42 | 121.23 |
| ARC-AGI-2 | 4.9% | — |
| Kagi LLM Benchmark | 72.1% | — |
| ARC-AGI-1 | 59.3% | — |
| DTBench | 86.9% | — |
| LMCA | 38.5% | — |
| Adversarial NLI | — | 55.8% |
| BIG-Bench Hard | — | 81.4% |
| HellaSwag | — | 82.4% |
| WinoGrande | — | 81.5% |
Math Not comparable
o3-pro: —, phi-3-medium 14B: 27.3 (#250)
| Benchmark | o3-pro | phi-3-medium 14B |
|---|---|---|
| MATH Level 5 | — | 17.6% |
Knowledge o3-pro leads
o3-pro: 29.5 (#238), phi-3-medium 14B: 9.1 (#306)
| Benchmark | o3-pro | phi-3-medium 14B |
|---|---|---|
| GPQA Diamond | — | 27.6% |
| Confabulations | 14.2% | — |
| Vectara Hallucination Rate | 23.3% | — |
| ARC (AI2) Challenge | — | 91.6% |
| MMLU | — | 78% |
| OpenBookQA | — | 87.4% |
| TriviaQA | — | 73.9% |
Long Context Not comparable
o3-pro: 72.2 (#1), phi-3-medium 14B: —
| Benchmark | o3-pro | phi-3-medium 14B |
|---|---|---|
| Fiction.LiveBench | 97.2% | — |
Writing & Preference Not comparable
o3-pro: 57.1 (#133), phi-3-medium 14B: —
| Benchmark | o3-pro | phi-3-medium 14B |
|---|---|---|
| Short-Story Creative Writing | 84.4% | — |
Frequently asked questions
Is o3-pro better than phi-3-medium 14B?
o3-pro is the stronger model overall, scoring 42.9 to 29.7 on the Noometry Index.
Is o3-pro or phi-3-medium 14B better for coding?
o3-pro scores higher on coding benchmarks: 55.5 versus 36.8 in the Noometry coding category.
How many benchmarks do o3-pro and phi-3-medium 14B share?
1 benchmark has published results for both models. o3-pro has 12 scored results on Noometry and phi-3-medium 14B has 13.