# Mistral Small 3.1 vs phi-3-medium 14B

> Mistral Small 3.1 is the stronger model overall, scoring 31.4 to 29.1 on the Noometry Index.

- Canonical page: https://noometry.com/compare/mistral-small-3-1-vs-phi-3-medium-14b
- Last updated: 2026-10-10
- Shared benchmarks: 2

## Summary

- They share 2 benchmarks with published results for both. Mistral Small 3.1 scores higher in 2 categories and phi-3-medium 14B in 1 category; 3 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where Mistral Small 3.1 leads 22.6 to 9.1.
- The biggest single-benchmark swing is GPQA Diamond: 41.9% for Mistral Small 3.1 and 27.6% for phi-3-medium 14B.

## Snapshot

| | Mistral Small 3.1 | phi-3-medium 14B |
|---|---|---|
| Provider | Mistral AI | Microsoft |
| Noometry Index | 31.4 | 29.1 |
| Rank | 263 | 306 |
| Context | 128K | — |
| Input $/M | $0.35 | — |
| Output $/M | $0.56 | — |
| Weights | Open | Open |

## Coding

- Mistral Small 3.1: 37.7 (#175)
- phi-3-medium 14B: 36.3 (#198)

| Benchmark | Mistral Small 3.1 | phi-3-medium 14B |
|---|---|---|
| BigCodeBench Instruct | — | 37.6% |
| LMArena Coding | 1309 | — |
| BigCodeBench Complete | — | 48.7% |

## Reasoning

- Mistral Small 3.1: 18.9 (#249)
- phi-3-medium 14B: —

| Benchmark | Mistral Small 3.1 | phi-3-medium 14B |
|---|---|---|
| Epoch Capabilities Index | 127.48 | 121.18 |
| Chess Puzzles | 1% | — |
| LMArena Hard Prompts | 1278 | — |
| Adversarial NLI | — | 55.8% |
| BIG-Bench Hard | — | 81.4% |
| HellaSwag | — | 82.4% |
| WinoGrande | — | 81.5% |

## Math

- Mistral Small 3.1: 13.7 (#295)
- phi-3-medium 14B: 25.2 (#249)

| Benchmark | Mistral Small 3.1 | phi-3-medium 14B |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 3.9% | — |
| Omni-MATH | 24.8% | — |
| LMArena Math | 1261 | — |
| MATH Level 5 | — | 17.6% |

## Knowledge

- Mistral Small 3.1: 22.6 (#266)
- phi-3-medium 14B: 9.1 (#301)

| Benchmark | Mistral Small 3.1 | phi-3-medium 14B |
|---|---|---|
| GPQA Diamond | 41.9% | 27.6% |
| MMLU-Pro | 61% | — |
| GPQA (HELM) | 39.2% | — |
| LMArena Expert | 1258 | — |
| ARC (AI2) Challenge | — | 91.6% |
| MMLU | — | 78% |
| OpenBookQA | — | 87.4% |
| TriviaQA | — | 73.9% |

## Multimodal

- Mistral Small 3.1: 32.6 (#93)
- phi-3-medium 14B: —

| Benchmark | Mistral Small 3.1 | phi-3-medium 14B |
|---|---|---|
| LMArena Vision | 1136 | — |

## Multilingual

- Mistral Small 3.1: 41.4 (#204)
- phi-3-medium 14B: —

| Benchmark | Mistral Small 3.1 | phi-3-medium 14B |
|---|---|---|
| LMArena Non-English | 1255 | — |
| LMArena Chinese | 1254 | — |
| LMArena French | 1270 | — |
| LMArena German | 1266 | — |
| LMArena Japanese | 1210 | — |
| LMArena Korean | 1206 | — |
| LMArena Russian | 1263 | — |
| LMArena Spanish | 1283 | — |

## Instruction Following

- Mistral Small 3.1: 63.8 (#225)
- phi-3-medium 14B: —

| Benchmark | Mistral Small 3.1 | phi-3-medium 14B |
|---|---|---|
| IFEval | 75% | — |
| LMArena Instruction Following | 1264 | — |

## Long Context

- Mistral Small 3.1: 39.5 (#172)
- phi-3-medium 14B: —

| Benchmark | Mistral Small 3.1 | phi-3-medium 14B |
|---|---|---|
| LMArena Longer Query | 1300 | — |

## Writing & Preference

- Mistral Small 3.1: 37.2 (#254)
- phi-3-medium 14B: —

| Benchmark | Mistral Small 3.1 | phi-3-medium 14B |
|---|---|---|
| LMArena Text | 1278 | — |
| LMArena Creative Writing | 1253 | — |
| EQ-Bench Creative Writing | 761 | — |
| WildBench | 78.8% | — |
| LMArena Multi-Turn | 1270 | — |

## FAQ

### Is Mistral Small 3.1 better than phi-3-medium 14B?

Mistral Small 3.1 is the stronger model overall, scoring 31.4 to 29.1 on the Noometry Index.

### Is Mistral Small 3.1 or phi-3-medium 14B better for coding?

Mistral Small 3.1 scores higher on coding benchmarks: 37.7 versus 36.3 in the Noometry coding category.

### How many benchmarks do Mistral Small 3.1 and phi-3-medium 14B share?

2 benchmarks have published results for both models. Mistral Small 3.1 has 28 scored results on Noometry and phi-3-medium 14B has 13.