# C4ai Aya Expanse 32b vs Kimi K2.7 Code

> Kimi K2.7 Code is the stronger model overall, scoring 43.0 to 35.3 on the Noometry Index.

- Canonical page: https://noometry.com/compare/c4ai-aya-expanse-32b-vs-kimi-k2-7-code
- Last updated: 2026-10-10
- Shared benchmarks: 0

## Summary

- The widest gap is in math, where Kimi K2.7 Code leads 52.6 to 31.4.
- Kimi K2.7 Code accepts more context: 262K tokens versus 128K.

## Snapshot

| | C4ai Aya Expanse 32b | Kimi K2.7 Code |
|---|---|---|
| Provider | Cohere | Moonshot AI |
| Noometry Index | 35.3 | 43.0 |
| Rank | 216 | 90 |
| Context | 128K | 262K |
| Input $/M | — | $0.95 |
| Output $/M | — | $4 |
| Weights | Open | Open |

## Coding

- C4ai Aya Expanse 32b: 34.3 (#227)
- Kimi K2.7 Code: 42.4 (#92)

| Benchmark | C4ai Aya Expanse 32b | Kimi K2.7 Code |
|---|---|---|
| DeepSWE | — | 30.5% |
| FrontierCode | — | 30.1% |
| LMArena WebDev | — | 1473 |
| SciCode | — | 47.5% |
| WeirdML | — | 54.1% |
| LMArena Coding | 1197 | — |
| ALE-Bench | — | 886.23 |

## Agentic & Tool Use

- C4ai Aya Expanse 32b: —
- Kimi K2.7 Code: 23.9 (#115)

| Benchmark | C4ai Aya Expanse 32b | Kimi K2.7 Code |
|---|---|---|
| APEX-Agents | — | 37.6% |
| GBAEval | — | 0.9% |
| Vending-Bench 2 | — | 5,083 |

## Reasoning

- C4ai Aya Expanse 32b: 22.3 (#183)
- Kimi K2.7 Code: 38.2 (#56)

| Benchmark | C4ai Aya Expanse 32b | Kimi K2.7 Code |
|---|---|---|
| SimpleBench | — | 57.9% |
| CritPt | — | 10% |
| Chess Puzzles | — | 21% |
| LMArena Hard Prompts | 1193 | — |
| Surface Evolver Bench | — | 48.8% |
| Epoch Capabilities Index | — | 150.01 |

## Math

- C4ai Aya Expanse 32b: 31.4 (#195)
- Kimi K2.7 Code: 52.6 (#39)

| Benchmark | C4ai Aya Expanse 32b | Kimi K2.7 Code |
|---|---|---|
| FrontierMath (Tiers 1-3) | — | 54% |
| FrontierMath Tier 4 | — | 12.2% |
| OTIS Mock AIME 2024-2025 | — | 95.6% |
| LMArena Math | 1200 | — |

## Knowledge

- C4ai Aya Expanse 32b: 32.6 (#202)
- Kimi K2.7 Code: 53.6 (#51)

| Benchmark | C4ai Aya Expanse 32b | Kimi K2.7 Code |
|---|---|---|
| GPQA Diamond | — | 87.9% |
| SimpleQA Verified | — | 36.5% |
| Vectara Hallucination Rate | 10.9% | — |
| LMArena Expert | 1182 | — |

## Multilingual

- C4ai Aya Expanse 32b: 38.5 (#225)
- Kimi K2.7 Code: —

| Benchmark | C4ai Aya Expanse 32b | Kimi K2.7 Code |
|---|---|---|
| LMArena Non-English | 1213 | — |
| LMArena Chinese | 1210 | — |
| LMArena French | 1247 | — |
| LMArena German | 1199 | — |
| LMArena Japanese | 1163 | — |
| LMArena Korean | 1158 | — |
| LMArena Russian | 1227 | — |
| LMArena Spanish | 1193 | — |

## Instruction Following

- C4ai Aya Expanse 32b: 62.9 (#232)
- Kimi K2.7 Code: —

| Benchmark | C4ai Aya Expanse 32b | Kimi K2.7 Code |
|---|---|---|
| LMArena Instruction Following | 1196 | — |

## Long Context

- C4ai Aya Expanse 32b: 37.2 (#215)
- Kimi K2.7 Code: —

| Benchmark | C4ai Aya Expanse 32b | Kimi K2.7 Code |
|---|---|---|
| LMArena Longer Query | 1228 | — |

## Writing & Preference

- C4ai Aya Expanse 32b: 42.4 (#230)
- Kimi K2.7 Code: —

| Benchmark | C4ai Aya Expanse 32b | Kimi K2.7 Code |
|---|---|---|
| LMArena Text | 1224 | — |
| LMArena Creative Writing | 1200 | — |
| LMArena Multi-Turn | 1190 | — |

## FAQ

### Is C4ai Aya Expanse 32b better than Kimi K2.7 Code?

Kimi K2.7 Code is the stronger model overall, scoring 43.0 to 35.3 on the Noometry Index.

### Is C4ai Aya Expanse 32b or Kimi K2.7 Code better for coding?

Kimi K2.7 Code scores higher on coding benchmarks: 42.4 versus 34.3 in the Noometry coding category.

### Which has the bigger context window?

Kimi K2.7 Code does, with 262K tokens against 128K.

### How many benchmarks do C4ai Aya Expanse 32b and Kimi K2.7 Code share?

0 benchmarks have published results for both models. C4ai Aya Expanse 32b has 18 scored results on Noometry and Kimi K2.7 Code has 19.