# Kimi K2.5 Instant vs Mixtral 8x22B

> Kimi K2.5 Instant is the stronger model overall, scoring 43.6 to 27.1 on the Noometry Index.

- Canonical page: https://noometry.com/compare/kimi-k2-5-instant-vs-mixtral-8x22b
- Last updated: 2026-10-12
- Shared benchmarks: 16

## Summary

- They share 16 benchmarks with published results for both. Kimi K2.5 Instant scores higher in 8 categories and Mixtral 8x22B in 0 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where Kimi K2.5 Instant leads 40.2 to 15.1.

## Snapshot

| | Kimi K2.5 Instant | Mixtral 8x22B |
|---|---|---|
| Provider | Moonshot AI | Mistral AI |
| Noometry Index | 43.6 | 27.1 |
| Rank | 89 | 333 |
| Context | — | 64K |
| Input $/M | — | $2 |
| Output $/M | — | $6 |
| Weights | Open | Open |

## Coding

- Kimi K2.5 Instant: 42.6 (#97)
- Mixtral 8x22B: 24.2 (#329)

| Benchmark | Kimi K2.5 Instant | Mixtral 8x22B |
|---|---|---|
| LMArena Coding | 1484 | 1166 |
| LMArena WebDev | 1404 | — |
| WeirdML | — | 3.2% |
| BigCodeBench Instruct | — | 40.6% |
| BigCodeBench Complete | — | 50.2% |
| HumanEval+ | — | 72% |
| MBPP+ | — | 64.3% |

## Agentic & Tool Use

- Kimi K2.5 Instant: —
- Mixtral 8x22B: 23.1 (#127)

| Benchmark | Kimi K2.5 Instant | Mixtral 8x22B |
|---|---|---|
| Cybench | — | 7.5% |

## Reasoning

- Kimi K2.5 Instant: 29.7 (#90)
- Mixtral 8x22B: 19.9 (#248)

| Benchmark | Kimi K2.5 Instant | Mixtral 8x22B |
|---|---|---|
| LMArena Hard Prompts | 1443 | 1150 |
| DTBench | — | 55.1% |
| Epoch Capabilities Index | — | 122.03 |
| ForecastBench | — | 56.3 |

## Math

- Kimi K2.5 Instant: 39.4 (#105)
- Mixtral 8x22B: 22.9 (#275)

| Benchmark | Kimi K2.5 Instant | Mixtral 8x22B |
|---|---|---|
| LMArena Math | 1442 | 1184 |
| Omni-MATH | — | 16.3% |
| MATH Level 5 | — | 24.2% |

## Knowledge

- Kimi K2.5 Instant: 40.2 (#123)
- Mixtral 8x22B: 15.1 (#293)

| Benchmark | Kimi K2.5 Instant | Mixtral 8x22B |
|---|---|---|
| LMArena Expert | 1440 | 1113 |
| GPQA Diamond | — | 34.1% |
| MMLU-Pro | — | 46% |
| GPQA (HELM) | — | 33.4% |
| MMLU | — | 77.8% |

## Multimodal

- Kimi K2.5 Instant: 40.2 (#50)
- Mixtral 8x22B: —

| Benchmark | Kimi K2.5 Instant | Mixtral 8x22B |
|---|---|---|
| LMArena Vision | 1254 | — |

## Multilingual

- Kimi K2.5 Instant: 52.0 (#94)
- Mixtral 8x22B: 32.8 (#255)

| Benchmark | Kimi K2.5 Instant | Mixtral 8x22B |
|---|---|---|
| LMArena Non-English | 1406 | 1128 |
| LMArena Chinese | 1449 | 1116 |
| LMArena French | 1403 | 1166 |
| LMArena German | 1413 | 1141 |
| LMArena Korean | 1378 | 1057 |
| LMArena Russian | 1404 | 1158 |
| LMArena Spanish | 1447 | 1151 |
| LMArena Japanese | — | 1037 |

## Instruction Following

- Kimi K2.5 Instant: 75.3 (#65)
- Mixtral 8x22B: 57.7 (#266)

| Benchmark | Kimi K2.5 Instant | Mixtral 8x22B |
|---|---|---|
| LMArena Instruction Following | 1430 | 1147 |
| IFEval | — | 72.4% |

## Long Context

- Kimi K2.5 Instant: 43.9 (#83)
- Mixtral 8x22B: 34.7 (#247)

| Benchmark | Kimi K2.5 Instant | Mixtral 8x22B |
|---|---|---|
| LMArena Longer Query | 1435 | 1144 |

## Writing & Preference

- Kimi K2.5 Instant: 60.6 (#95)
- Mixtral 8x22B: 36.9 (#262)

| Benchmark | Kimi K2.5 Instant | Mixtral 8x22B |
|---|---|---|
| LMArena Text | 1420 | 1162 |
| LMArena Creative Writing | 1381 | 1141 |
| LMArena Multi-Turn | 1427 | 1130 |
| WildBench | — | 71.1% |

## FAQ

### Is Kimi K2.5 Instant better than Mixtral 8x22B?

Kimi K2.5 Instant is the stronger model overall, scoring 43.6 to 27.1 on the Noometry Index.

### Is Kimi K2.5 Instant or Mixtral 8x22B better for coding?

Kimi K2.5 Instant scores higher on coding benchmarks: 42.6 versus 24.2 in the Noometry coding category.

### How many benchmarks do Kimi K2.5 Instant and Mixtral 8x22B share?

16 benchmarks have published results for both models. Kimi K2.5 Instant has 18 scored results on Noometry and Mixtral 8x22B has 34.