# Kimi K2.7 Code vs Sonar

> Kimi K2.7 Code is the stronger model overall, scoring 43.3 to 38.5 on the Noometry Index. Sonar costs 1.7× 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-sonar
- Last updated: 2026-10-11
- Shared benchmarks: 0

## Summary

- The widest gap is in math, where Kimi K2.7 Code leads 52.9 to 33.7.
- Sonar is cheaper at $1 / $1 per million input/output tokens, against $0.95 / $4 for Kimi K2.7 Code.
- Kimi K2.7 Code accepts more context: 262K tokens versus 128K.
- Kimi K2.7 Code has downloadable open weights; the other is API-only.

## Snapshot

| | Kimi K2.7 Code | Sonar |
|---|---|---|
| Provider | Moonshot AI | Perplexity |
| Noometry Index | 43.3 | 38.5 |
| Rank | 94 | 187 |
| Context | 262K | 128K |
| Input $/M | $0.95 | $1 |
| Output $/M | $4 | $1 |
| Weights | Open | Proprietary |

## Coding

- Kimi K2.7 Code: 42.9 (#95)
- Sonar: 35.7 (#221)

| Benchmark | Kimi K2.7 Code | Sonar |
|---|---|---|
| DeepSWE | 30.5% | — |
| FrontierCode | 30.1% | — |
| LMArena WebDev | 1473 | — |
| SciCode | 47.5% | — |
| WeirdML | 54.1% | — |
| LiveBench Coding | — | 35.1% |
| ALE-Bench | 886.23 | — |

## Agentic & Tool Use

- Kimi K2.7 Code: 24.0 (#122)
- Sonar: —

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

## Reasoning

- Kimi K2.7 Code: 39.0 (#61)
- Sonar: 21.1 (#227)

| Benchmark | Kimi K2.7 Code | Sonar |
|---|---|---|
| SimpleBench | 57.9% | — |
| CritPt | 10% | — |
| Chess Puzzles | 21% | — |
| LiveBench Reasoning | — | 46.3% |
| LiveBench Data Analysis | — | 37.9% |
| Surface Evolver Bench | 48.8% | — |
| Epoch Capabilities Index | 149.97 | — |
| LiveBench | — | 46.9% |

## Math

- Kimi K2.7 Code: 52.9 (#48)
- Sonar: 33.7 (#200)

| Benchmark | Kimi K2.7 Code | Sonar |
|---|---|---|
| FrontierMath (Tiers 1-3) | 54% | — |
| FrontierMath Tier 4 | 12.2% | — |
| OTIS Mock AIME 2024-2025 | 95.6% | — |
| LiveBench Math | — | 41.6% |

## Knowledge

- Kimi K2.7 Code: 53.5 (#57)
- Sonar: —

| Benchmark | Kimi K2.7 Code | Sonar |
|---|---|---|
| GPQA Diamond | 87.9% | — |
| SimpleQA Verified | 36.5% | — |

## Instruction Following

- Kimi K2.7 Code: —
- Sonar: 71.4 (#150)

| Benchmark | Kimi K2.7 Code | Sonar |
|---|---|---|
| LiveBench Instruction Following | — | 76.2% |

## Writing & Preference

- Kimi K2.7 Code: —
- Sonar: 52.6 (#167)

| Benchmark | Kimi K2.7 Code | Sonar |
|---|---|---|
| LiveBench Language | — | 44.1% |

## FAQ

### Is Kimi K2.7 Code better than Sonar?

Kimi K2.7 Code is the stronger model overall, scoring 43.3 to 38.5 on the Noometry Index. Sonar costs 1.7× 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 Sonar?

Sonar is cheaper. It lists at $1 per million input tokens and $1 per million output tokens; Kimi K2.7 Code lists at $0.95 and $4.

### Is Kimi K2.7 Code or Sonar better for coding?

Kimi K2.7 Code scores higher on coding benchmarks: 42.9 versus 35.7 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 Kimi K2.7 Code and Sonar share?

0 benchmarks have published results for both models. Kimi K2.7 Code has 19 scored results on Noometry and Sonar has 7.