# Mixtral 8x22B vs Phi 3 Mini 128k Instruct

> Phi 3 Mini 128k Instruct is the stronger model overall, scoring 29.7 to 27.1 on the Noometry Index.

- Canonical page: https://noometry.com/compare/mixtral-8x22b-vs-phi-3-mini-128k-instruct
- Last updated: 2026-10-10
- Shared benchmarks: 19

## Summary

- They share 19 benchmarks with published results for both. Mixtral 8x22B scores higher in 5 categories and Phi 3 Mini 128k Instruct in 3 categories; 7 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where Phi 3 Mini 128k Instruct leads 26.8 to 15.1.
- The biggest single-benchmark swing is BigCodeBench Instruct: 40.6% for Mixtral 8x22B and 29.6% for Phi 3 Mini 128k Instruct.

## Snapshot

| | Mixtral 8x22B | Phi 3 Mini 128k Instruct |
|---|---|---|
| Provider | Mistral AI | Microsoft |
| Noometry Index | 27.1 | 29.7 |
| Rank | 333 | 305 |
| Context | 64K | — |
| Input $/M | $2 | — |
| Output $/M | $6 | — |
| Weights | Open | Open |

## Coding

- Mixtral 8x22B: 24.2 (#329)
- Phi 3 Mini 128k Instruct: 28.8 (#312)

| Benchmark | Mixtral 8x22B | Phi 3 Mini 128k Instruct |
|---|---|---|
| BigCodeBench Instruct | 40.6% | 29.6% |
| LMArena Coding | 1166 | 1039 |
| BigCodeBench Complete | 50.2% | 40.6% |
| WeirdML | 3.2% | — |
| HumanEval+ | 72% | — |
| MBPP+ | 64.3% | — |

## Agentic & Tool Use

- Mixtral 8x22B: 23.1 (#127)
- Phi 3 Mini 128k Instruct: —

| Benchmark | Mixtral 8x22B | Phi 3 Mini 128k Instruct |
|---|---|---|
| Cybench | 7.5% | — |

## Reasoning

- Mixtral 8x22B: 19.9 (#248)
- Phi 3 Mini 128k Instruct: 19.6 (#256)

| Benchmark | Mixtral 8x22B | Phi 3 Mini 128k Instruct |
|---|---|---|
| LMArena Hard Prompts | 1150 | 1028 |
| DTBench | 55.1% | — |
| Epoch Capabilities Index | 122.03 | — |
| ForecastBench | 56.3 | — |

## Math

- Mixtral 8x22B: 22.9 (#275)
- Phi 3 Mini 128k Instruct: 31.6 (#222)

| Benchmark | Mixtral 8x22B | Phi 3 Mini 128k Instruct |
|---|---|---|
| LMArena Math | 1184 | 1089 |
| Omni-MATH | 16.3% | — |
| MATH Level 5 | 24.2% | — |

## Knowledge

- Mixtral 8x22B: 15.1 (#293)
- Phi 3 Mini 128k Instruct: 26.8 (#254)

| Benchmark | Mixtral 8x22B | Phi 3 Mini 128k Instruct |
|---|---|---|
| LMArena Expert | 1113 | 984 |
| GPQA Diamond | 34.1% | — |
| MMLU-Pro | 46% | — |
| GPQA (HELM) | 33.4% | — |
| MMLU | 77.8% | — |

## Multilingual

- Mixtral 8x22B: 32.8 (#255)
- Phi 3 Mini 128k Instruct: 25.2 (#285)

| Benchmark | Mixtral 8x22B | Phi 3 Mini 128k Instruct |
|---|---|---|
| LMArena Non-English | 1128 | 1000 |
| LMArena Chinese | 1116 | 1016 |
| LMArena French | 1166 | 1039 |
| LMArena German | 1141 | 1006 |
| LMArena Japanese | 1037 | 899 |
| LMArena Korean | 1057 | 856 |
| LMArena Russian | 1158 | 1004 |
| LMArena Spanish | 1151 | 1059 |

## Instruction Following

- Mixtral 8x22B: 57.7 (#266)
- Phi 3 Mini 128k Instruct: 51.8 (#294)

| Benchmark | Mixtral 8x22B | Phi 3 Mini 128k Instruct |
|---|---|---|
| LMArena Instruction Following | 1147 | 1023 |
| IFEval | 72.4% | — |

## Long Context

- Mixtral 8x22B: 34.7 (#247)
- Phi 3 Mini 128k Instruct: 30.4 (#289)

| Benchmark | Mixtral 8x22B | Phi 3 Mini 128k Instruct |
|---|---|---|
| LMArena Longer Query | 1144 | 996 |

## Writing & Preference

- Mixtral 8x22B: 36.9 (#262)
- Phi 3 Mini 128k Instruct: 27.1 (#301)

| Benchmark | Mixtral 8x22B | Phi 3 Mini 128k Instruct |
|---|---|---|
| LMArena Text | 1162 | 1050 |
| LMArena Creative Writing | 1141 | 1024 |
| LMArena Multi-Turn | 1130 | 989 |
| WildBench | 71.1% | — |

## FAQ

### Is Mixtral 8x22B better than Phi 3 Mini 128k Instruct?

Phi 3 Mini 128k Instruct is the stronger model overall, scoring 29.7 to 27.1 on the Noometry Index.

### Is Mixtral 8x22B or Phi 3 Mini 128k Instruct better for coding?

Phi 3 Mini 128k Instruct scores higher on coding benchmarks: 28.8 versus 24.2 in the Noometry coding category.

### How many benchmarks do Mixtral 8x22B and Phi 3 Mini 128k Instruct share?

19 benchmarks have published results for both models. Mixtral 8x22B has 34 scored results on Noometry and Phi 3 Mini 128k Instruct has 19.