# Mistral Small 3.1 vs Phi-1.5

> Mistral Small 3.1 has enough public results to be ranked (#263); Phi-1.5 does not yet, so treat this comparison as directional.

- Canonical page: https://noometry.com/compare/mistral-small-3-1-vs-phi-1-5
- Last updated: 2026-10-10
- Shared benchmarks: 1

## Summary

- They share 1 benchmark with published results for both.

## Snapshot

| | Mistral Small 3.1 | Phi-1.5 |
|---|---|---|
| Provider | Mistral AI | Microsoft |
| Noometry Index | 31.4 | — |
| Rank | 263 | — |
| Context | 128K | — |
| Input $/M | $0.35 | — |
| Output $/M | $0.56 | — |
| Weights | Open | Open |

## Coding

- Mistral Small 3.1: 37.7 (#175)
- Phi-1.5: —

| Benchmark | Mistral Small 3.1 | Phi-1.5 |
|---|---|---|
| LMArena Coding | 1309 | — |

## Reasoning

- Mistral Small 3.1: 18.9 (#249)
- Phi-1.5: —

| Benchmark | Mistral Small 3.1 | Phi-1.5 |
|---|---|---|
| Epoch Capabilities Index | 127.48 | 90.82 |
| Chess Puzzles | 1% | — |
| LMArena Hard Prompts | 1278 | — |
| HellaSwag | — | 47.6% |
| WinoGrande | — | 73.4% |

## Math

- Mistral Small 3.1: 13.7 (#295)
- Phi-1.5: —

| Benchmark | Mistral Small 3.1 | Phi-1.5 |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 3.9% | — |
| Omni-MATH | 24.8% | — |
| LMArena Math | 1261 | — |

## Knowledge

- Mistral Small 3.1: 22.6 (#266)
- Phi-1.5: —

| Benchmark | Mistral Small 3.1 | Phi-1.5 |
|---|---|---|
| GPQA Diamond | 41.9% | — |
| MMLU-Pro | 61% | — |
| GPQA (HELM) | 39.2% | — |
| LMArena Expert | 1258 | — |
| ARC (AI2) Challenge | — | 44.4% |
| BoolQ | — | 75.8% |
| MMLU | — | 37.6% |
| OpenBookQA | — | 37.2% |

## Multimodal

- Mistral Small 3.1: 32.6 (#93)
- Phi-1.5: —

| Benchmark | Mistral Small 3.1 | Phi-1.5 |
|---|---|---|
| LMArena Vision | 1136 | — |

## Multilingual

- Mistral Small 3.1: 41.4 (#204)
- Phi-1.5: —

| Benchmark | Mistral Small 3.1 | Phi-1.5 |
|---|---|---|
| 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-1.5: —

| Benchmark | Mistral Small 3.1 | Phi-1.5 |
|---|---|---|
| IFEval | 75% | — |
| LMArena Instruction Following | 1264 | — |

## Long Context

- Mistral Small 3.1: 39.5 (#172)
- Phi-1.5: —

| Benchmark | Mistral Small 3.1 | Phi-1.5 |
|---|---|---|
| LMArena Longer Query | 1300 | — |

## Writing & Preference

- Mistral Small 3.1: 37.2 (#254)
- Phi-1.5: —

| Benchmark | Mistral Small 3.1 | Phi-1.5 |
|---|---|---|
| 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-1.5?

Mistral Small 3.1 has enough public results to be ranked (#263); Phi-1.5 does not yet, so treat this comparison as directional.

### How many benchmarks do Mistral Small 3.1 and Phi-1.5 share?

1 benchmark has published results for both models. Mistral Small 3.1 has 28 scored results on Noometry and Phi-1.5 has 7.