# GPT-4o mini vs Phi 3 Mini 4k Instruct

> Phi 3 Mini 4k Instruct is the stronger model overall, scoring 27.9 to 25.5 on the Noometry Index.

- Canonical page: https://noometry.com/compare/gpt-4o-mini-vs-phi-3-mini-4k-instruct
- Last updated: 2026-10-11
- Shared benchmarks: 28

## Summary

- They share 28 benchmarks with published results for both. GPT-4o mini scores higher in 4 categories and Phi 3 Mini 4k Instruct in 4 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in math, where Phi 3 Mini 4k Instruct leads 26.6 to 10.4.
- The biggest single-benchmark swing is LiveBench Coding: 43.1% for GPT-4o mini and 15.5% for Phi 3 Mini 4k Instruct.
- Phi 3 Mini 4k Instruct has downloadable open weights; the other is API-only.

## Snapshot

| | GPT-4o mini | Phi 3 Mini 4k Instruct |
|---|---|---|
| Provider | OpenAI | Microsoft |
| Noometry Index | 25.5 | 27.9 |
| Rank | 343 | 328 |
| Context | 128K | — |
| Input $/M | $0.15 | — |
| Output $/M | $0.60 | — |
| Weights | Proprietary | Open |

## Coding

- GPT-4o mini: 22.0 (#335)
- Phi 3 Mini 4k Instruct: 26.6 (#323)

| Benchmark | GPT-4o mini | Phi 3 Mini 4k Instruct |
|---|---|---|
| LiveBench Coding | 43.1% | 15.5% |
| LMArena Coding | 1290 | 1093 |
| HumanEval+ | 83.5% | 59.1% |
| MBPP+ | 72.2% | 54.2% |
| Aider Polyglot | 3.6% | — |
| WeirdML | 11.8% | — |
| BigCodeBench Instruct | 46.1% | — |
| BigCodeBench Complete | 57.4% | — |

## Agentic & Tool Use

- GPT-4o mini: 27.5 (#101)
- Phi 3 Mini 4k Instruct: —

| Benchmark | GPT-4o mini | Phi 3 Mini 4k Instruct |
|---|---|---|
| BALROG | 17.4% | — |

## Reasoning

- GPT-4o mini: 8.7 (#347)
- Phi 3 Mini 4k Instruct: 14.1 (#328)

| Benchmark | GPT-4o mini | Phi 3 Mini 4k Instruct |
|---|---|---|
| Chess Puzzles | 0% | 0% |
| LiveBench Reasoning | 32.8% | 26.8% |
| LMArena Hard Prompts | 1267 | 1072 |
| LiveBench Data Analysis | 50% | 34.7% |
| LiveBench | 41.3% | 22.4% |
| ARC-AGI-2 | 0% | — |
| SimpleBench | 10.7% | — |
| Kagi LLM Benchmark | 28.8% | — |
| Mystery Game Puzzles | 12% | — |
| DTBench | 54.4% | — |
| LMCA | 10.4% | — |
| Adversarial NLI | — | 52.8% |
| BIG-Bench Hard | — | 71.7% |
| Epoch Capabilities Index | 126.56 | — |
| HellaSwag | — | 76.7% |
| PIQA | 88.7% | — |
| WinoGrande | — | 70.8% |

## Math

- GPT-4o mini: 10.4 (#314)
- Phi 3 Mini 4k Instruct: 26.6 (#257)

| Benchmark | GPT-4o mini | Phi 3 Mini 4k Instruct |
|---|---|---|
| LiveBench Math | 36.3% | 15.7% |
| LMArena Math | 1267 | 1111 |
| FrontierMath (Tiers 1-3) | 0.7% | — |
| OTIS Mock AIME 2024-2025 | 6.9% | — |
| Omni-MATH | 28% | — |
| MATH Level 5 | 52.6% | — |
| GSM8K | 91.3% | — |

## Knowledge

- GPT-4o mini: 17.7 (#284)
- Phi 3 Mini 4k Instruct: 28.5 (#246)

| Benchmark | GPT-4o mini | Phi 3 Mini 4k Instruct |
|---|---|---|
| LMArena Expert | 1235 | 1045 |
| MMLU | 81.8% | 68.8% |
| GPQA Diamond | 37.7% | — |
| SimpleQA Verified | 8.3% | — |
| MMLU-Pro | 60.3% | — |
| Confabulations | 37.2% | — |
| GPQA (HELM) | 36.8% | — |
| ARC (AI2) Challenge | — | 84.9% |
| BoolQ | 88.7% | — |
| OpenBookQA | — | 88% |
| TriviaQA | — | 64% |

## Multimodal

- GPT-4o mini: 25.9 (#122)
- Phi 3 Mini 4k Instruct: —

| Benchmark | GPT-4o mini | Phi 3 Mini 4k Instruct |
|---|---|---|
| LMArena Vision | 1066 | — |
| Video-MME | 64.8% | — |
| GeoBench | 64% | — |
| VPCT | 34% | — |

## Multilingual

- GPT-4o mini: 42.0 (#199)
- Phi 3 Mini 4k Instruct: 26.3 (#280)

| Benchmark | GPT-4o mini | Phi 3 Mini 4k Instruct |
|---|---|---|
| LMArena Non-English | 1266 | 1021 |
| LMArena Chinese | 1265 | 1021 |
| LMArena French | 1297 | 1076 |
| LMArena German | 1272 | 1044 |
| LMArena Japanese | 1216 | 935 |
| LMArena Korean | 1195 | 905 |
| LMArena Russian | 1275 | 1022 |
| LMArena Spanish | 1276 | 1085 |

## Instruction Following

- GPT-4o mini: 61.9 (#239)
- Phi 3 Mini 4k Instruct: 47.7 (#303)

| Benchmark | GPT-4o mini | Phi 3 Mini 4k Instruct |
|---|---|---|
| LiveBench Instruction Following | 56.8% | 39.1% |
| LMArena Instruction Following | 1258 | 1053 |
| IFEval | 78.2% | — |

## Long Context

- GPT-4o mini: 39.1 (#186)
- Phi 3 Mini 4k Instruct: 31.7 (#276)

| Benchmark | GPT-4o mini | Phi 3 Mini 4k Instruct |
|---|---|---|
| LMArena Longer Query | 1289 | 1044 |

## Writing & Preference

- GPT-4o mini: 39.5 (#248)
- Phi 3 Mini 4k Instruct: 27.6 (#300)

| Benchmark | GPT-4o mini | Phi 3 Mini 4k Instruct |
|---|---|---|
| LMArena Text | 1286 | 1073 |
| LMArena Creative Writing | 1268 | 1037 |
| LMArena Multi-Turn | 1285 | 1018 |
| LiveBench Language | 28.6% | 9.2% |
| Short-Story Creative Writing | 67.2% | — |
| EQ-Bench Creative Writing | 873 | — |
| WildBench | 79.1% | — |

## FAQ

### Is GPT-4o mini better than Phi 3 Mini 4k Instruct?

Phi 3 Mini 4k Instruct is the stronger model overall, scoring 27.9 to 25.5 on the Noometry Index.

### Is GPT-4o mini or Phi 3 Mini 4k Instruct better for coding?

Phi 3 Mini 4k Instruct scores higher on coding benchmarks: 26.6 versus 22.0 in the Noometry coding category.

### How many benchmarks do GPT-4o mini and Phi 3 Mini 4k Instruct share?

28 benchmarks have published results for both models. GPT-4o mini has 60 scored results on Noometry and Phi 3 Mini 4k Instruct has 35.