# Kimi K2.7 Code vs Mistral Small 3

> Kimi K2.7 Code is the stronger model overall, scoring 43.0 to 30.9 on the Noometry Index. Mistral Small 3 costs 30× less per token, which makes it the better buy when Kimi K2.7 Code's lead doesn't matter for your workload.

- Canonical page: https://noometry.com/compare/kimi-k2-7-code-vs-mistral-small-3
- Last updated: 2026-10-10
- Shared benchmarks: 4

## Summary

- They share 4 benchmarks with published results for both. Kimi K2.7 Code scores higher in 4 categories and Mistral Small 3 in 0 categories; 4 gaps are clear of the uncertainty.
- The widest gap is in math, where Kimi K2.7 Code leads 52.6 to 15.3.
- The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 95.6% for Kimi K2.7 Code and 6.7% for Mistral Small 3.
- Mistral Small 3 is cheaper at $0.05 / $0.08 per million input/output tokens, against $0.95 / $4 for Kimi K2.7 Code.
- Kimi K2.7 Code accepts more context: 262K tokens versus 33K.

## Snapshot

| | Kimi K2.7 Code | Mistral Small 3 |
|---|---|---|
| Provider | Moonshot AI | Mistral AI |
| Noometry Index | 43.0 | 30.9 |
| Rank | 90 | 268 |
| Context | 262K | 33K |
| Input $/M | $0.95 | $0.05 |
| Output $/M | $4 | $0.08 |
| Weights | Open | Open |

## Coding

- Kimi K2.7 Code: 42.4 (#92)
- Mistral Small 3: 36.0 (#203)

| Benchmark | Kimi K2.7 Code | Mistral Small 3 |
|---|---|---|
| DeepSWE | 30.5% | — |
| FrontierCode | 30.1% | — |
| LMArena WebDev | 1473 | — |
| SciCode | 47.5% | — |
| WeirdML | 54.1% | — |
| BigCodeBench Instruct | — | 45.3% |
| LMArena Coding | — | 1246 |
| BigCodeBench Complete | — | 50.4% |
| ALE-Bench | 886.23 | — |

## Agentic & Tool Use

- Kimi K2.7 Code: 23.9 (#115)
- Mistral Small 3: —

| Benchmark | Kimi K2.7 Code | Mistral Small 3 |
|---|---|---|
| APEX-Agents | 37.6% | — |
| GBAEval | 0.9% | — |
| Vending-Bench 2 | 5,083 | — |

## Reasoning

- Kimi K2.7 Code: 38.2 (#56)
- Mistral Small 3: 18.2 (#269)

| Benchmark | Kimi K2.7 Code | Mistral Small 3 |
|---|---|---|
| Chess Puzzles | 21% | 0% |
| Epoch Capabilities Index | 150.01 | 127.06 |
| SimpleBench | 57.9% | — |
| CritPt | 10% | — |
| LMArena Hard Prompts | — | 1233 |
| Surface Evolver Bench | 48.8% | — |

## Math

- Kimi K2.7 Code: 52.6 (#39)
- Mistral Small 3: 15.3 (#290)

| Benchmark | Kimi K2.7 Code | Mistral Small 3 |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 95.6% | 6.7% |
| FrontierMath (Tiers 1-3) | 54% | — |
| FrontierMath Tier 4 | 12.2% | — |
| LMArena Math | — | 1240 |

## Knowledge

- Kimi K2.7 Code: 53.6 (#51)
- Mistral Small 3: 25.0 (#258)

| Benchmark | Kimi K2.7 Code | Mistral Small 3 |
|---|---|---|
| GPQA Diamond | 87.9% | 47.3% |
| SimpleQA Verified | 36.5% | — |
| Confabulations | — | 25.2% |
| LMArena Expert | — | 1202 |

## Multilingual

- Kimi K2.7 Code: —
- Mistral Small 3: 37.5 (#231)

| Benchmark | Kimi K2.7 Code | Mistral Small 3 |
|---|---|---|
| LMArena Non-English | — | 1198 |
| LMArena Chinese | — | 1204 |
| LMArena French | — | 1202 |
| LMArena German | — | 1211 |
| LMArena Japanese | — | 1111 |
| LMArena Korean | — | 1188 |
| LMArena Russian | — | 1216 |

## Instruction Following

- Kimi K2.7 Code: —
- Mistral Small 3: 63.9 (#224)

| Benchmark | Kimi K2.7 Code | Mistral Small 3 |
|---|---|---|
| LMArena Instruction Following | — | 1214 |

## Long Context

- Kimi K2.7 Code: —
- Mistral Small 3: 37.8 (#206)

| Benchmark | Kimi K2.7 Code | Mistral Small 3 |
|---|---|---|
| LMArena Longer Query | — | 1246 |

## Writing & Preference

- Kimi K2.7 Code: —
- Mistral Small 3: 32.4 (#275)

| Benchmark | Kimi K2.7 Code | Mistral Small 3 |
|---|---|---|
| LMArena Text | — | 1234 |
| LMArena Creative Writing | — | 1195 |
| EQ-Bench Creative Writing | — | 707 |
| LMArena Multi-Turn | — | 1217 |

## FAQ

### Is Kimi K2.7 Code better than Mistral Small 3?

Kimi K2.7 Code is the stronger model overall, scoring 43.0 to 30.9 on the Noometry Index. Mistral Small 3 costs 30× less per token, which makes it the better buy when Kimi K2.7 Code's lead doesn't matter for your workload.

### Which is cheaper, Kimi K2.7 Code or Mistral Small 3?

Mistral Small 3 is cheaper. It lists at $0.05 per million input tokens and $0.08 per million output tokens; Kimi K2.7 Code lists at $0.95 and $4.

### Is Kimi K2.7 Code or Mistral Small 3 better for coding?

Kimi K2.7 Code scores higher on coding benchmarks: 42.4 versus 36.0 in the Noometry coding category.

### Which has the bigger context window?

Kimi K2.7 Code does, with 262K tokens against 33K.

### How many benchmarks do Kimi K2.7 Code and Mistral Small 3 share?

4 benchmarks have published results for both models. Kimi K2.7 Code has 19 scored results on Noometry and Mistral Small 3 has 24.