# o3-pro vs Phi 3 Mini 4k Instruct

> o3-pro is the stronger model overall, scoring 42.7 to 27.4 on the Noometry Index.

- Canonical page: https://noometry.com/compare/o3-pro-vs-phi-3-mini-4k-instruct
- Last updated: 2026-10-10
- Shared benchmarks: 0

## Summary

- The widest gap is in long context, where o3-pro leads 72.1 to 31.7.
- Phi 3 Mini 4k Instruct has downloadable open weights; the other is API-only.

## Snapshot

| | o3-pro | Phi 3 Mini 4k Instruct |
|---|---|---|
| Provider | OpenAI | Microsoft |
| Noometry Index | 42.7 | 27.4 |
| Rank | 94 | 324 |
| Context | 200K | — |
| Input $/M | $20 | — |
| Output $/M | $80 | — |
| Weights | Proprietary | Open |

## Coding

- o3-pro: 55.1 (#22)
- Phi 3 Mini 4k Instruct: 26.1 (#319)

| Benchmark | o3-pro | Phi 3 Mini 4k Instruct |
|---|---|---|
| Aider Polyglot | 84.9% | — |
| WeirdML | 58.2% | — |
| LiveBench Coding | — | 15.5% |
| LMArena Coding | — | 1093 |
| HumanEval+ | — | 59.1% |
| MBPP+ | — | 54.2% |

## Reasoning

- o3-pro: 24.1 (#152)
- Phi 3 Mini 4k Instruct: 13.6 (#326)

| Benchmark | o3-pro | Phi 3 Mini 4k Instruct |
|---|---|---|
| ARC-AGI-2 | 4.9% | — |
| Kagi LLM Benchmark | 72.1% | — |
| ARC-AGI-1 | 59.3% | — |
| Chess Puzzles | — | 0% |
| LiveBench Reasoning | — | 26.8% |
| LMArena Hard Prompts | — | 1072 |
| DTBench | 86.9% | — |
| LiveBench Data Analysis | — | 34.7% |
| LMCA | 38.5% | — |
| Adversarial NLI | — | 52.8% |
| BIG-Bench Hard | — | 71.7% |
| Epoch Capabilities Index | 147.43 | — |
| HellaSwag | — | 76.7% |
| LiveBench | — | 22.4% |
| WinoGrande | — | 70.8% |

## Math

- o3-pro: —
- Phi 3 Mini 4k Instruct: 24.5 (#258)

| Benchmark | o3-pro | Phi 3 Mini 4k Instruct |
|---|---|---|
| LiveBench Math | — | 15.7% |
| LMArena Math | — | 1111 |

## Knowledge

- o3-pro: 29.0 (#234)
- Phi 3 Mini 4k Instruct: 27.9 (#241)

| Benchmark | o3-pro | Phi 3 Mini 4k Instruct |
|---|---|---|
| Confabulations | 14.2% | — |
| Vectara Hallucination Rate | 23.3% | — |
| LMArena Expert | — | 1045 |
| ARC (AI2) Challenge | — | 84.9% |
| MMLU | — | 68.8% |
| OpenBookQA | — | 88% |
| TriviaQA | — | 64% |

## Multilingual

- o3-pro: —
- Phi 3 Mini 4k Instruct: 26.5 (#275)

| Benchmark | o3-pro | Phi 3 Mini 4k Instruct |
|---|---|---|
| LMArena Non-English | — | 1021 |
| LMArena Chinese | — | 1021 |
| LMArena French | — | 1075 |
| LMArena German | — | 1044 |
| LMArena Japanese | — | 935 |
| LMArena Korean | — | 905 |
| LMArena Russian | — | 1022 |
| LMArena Spanish | — | 1084 |

## Instruction Following

- o3-pro: —
- Phi 3 Mini 4k Instruct: 48.0 (#298)

| Benchmark | o3-pro | Phi 3 Mini 4k Instruct |
|---|---|---|
| LiveBench Instruction Following | — | 39.1% |
| LMArena Instruction Following | — | 1053 |

## Long Context

- o3-pro: 72.1 (#1)
- Phi 3 Mini 4k Instruct: 31.7 (#271)

| Benchmark | o3-pro | Phi 3 Mini 4k Instruct |
|---|---|---|
| Fiction.LiveBench | 97.2% | — |
| LMArena Longer Query | — | 1044 |

## Writing & Preference

- o3-pro: 57.1 (#128)
- Phi 3 Mini 4k Instruct: 27.7 (#295)

| Benchmark | o3-pro | Phi 3 Mini 4k Instruct |
|---|---|---|
| LMArena Text | — | 1073 |
| LMArena Creative Writing | — | 1037 |
| Short-Story Creative Writing | 84.4% | — |
| LMArena Multi-Turn | — | 1018 |
| LiveBench Language | — | 9.2% |

## FAQ

### Is o3-pro better than Phi 3 Mini 4k Instruct?

o3-pro is the stronger model overall, scoring 42.7 to 27.4 on the Noometry Index.

### Is o3-pro or Phi 3 Mini 4k Instruct better for coding?

o3-pro scores higher on coding benchmarks: 55.1 versus 26.1 in the Noometry coding category.

### How many benchmarks do o3-pro and Phi 3 Mini 4k Instruct share?

0 benchmarks have published results for both models. o3-pro has 12 scored results on Noometry and Phi 3 Mini 4k Instruct has 35.