# Grok 4.3 vs Kimi K2.7 Code

> Grok 4.3 and Kimi K2.7 Code score almost the same on the Noometry Index (43.8 vs 43.3), so choose on price, context window or the category you care about most.

- Canonical page: https://noometry.com/compare/grok-4-3-vs-kimi-k2-7-code
- Last updated: 2026-10-10
- Shared benchmarks: 13

## Summary

- They share 13 benchmarks with published results for both. Grok 4.3 scores higher in 1 category and Kimi K2.7 Code in 4 categories; 5 gaps are clear of the uncertainty.
- The widest gap is in math, where Kimi K2.7 Code leads 52.9 to 46.0.
- The biggest single-benchmark swing is FrontierMath (Tiers 1-3): 42.8% for Grok 4.3 and 54% for Kimi K2.7 Code.
- Grok 4.3 is cheaper at $1.25 / $2.50 per million input/output tokens, against $0.95 / $4 for Kimi K2.7 Code.
- Grok 4.3 accepts more context: 1M tokens versus 262K.
- Kimi K2.7 Code has downloadable open weights; the other is API-only.

## Snapshot

| | Grok 4.3 | Kimi K2.7 Code |
|---|---|---|
| Provider | xAI | Moonshot AI |
| Noometry Index | 43.8 | 43.3 |
| Rank | 86 | 94 |
| Context | 1M | 262K |
| Input $/M | $1.25 | $0.95 |
| Output $/M | $2.50 | $4 |
| Weights | Proprietary | Open |

## Coding

- Grok 4.3: 41.6 (#121)
- Kimi K2.7 Code: 42.9 (#95)

| Benchmark | Grok 4.3 | Kimi K2.7 Code |
|---|---|---|
| LMArena WebDev | 1357 | 1473 |
| SciCode | 47.3% | 47.5% |
| WeirdML | 49.9% | 54.1% |
| ALE-Bench | 944.17 | 886.23 |
| DeepSWE | — | 30.5% |
| FrontierCode | — | 30.1% |
| LMArena Coding | 1415 | — |

## Agentic & Tool Use

- Grok 4.3: 27.7 (#99)
- Kimi K2.7 Code: 24.0 (#122)

| Benchmark | Grok 4.3 | Kimi K2.7 Code |
|---|---|---|
| Vending-Bench 2 | 35.26 | 5,083 |
| APEX-Agents | — | 37.6% |
| GBAEval | — | 0.9% |
| GDP.pdf | 8% | — |
| LMArena Search | 1165 | — |

## Reasoning

- Grok 4.3: 35.9 (#68)
- Kimi K2.7 Code: 39.0 (#61)

| Benchmark | Grok 4.3 | Kimi K2.7 Code |
|---|---|---|
| CritPt | 8% | 10% |
| Chess Puzzles | 25% | 21% |
| Epoch Capabilities Index | 149.16 | 149.97 |
| SimpleBench | — | 57.9% |
| NYT Connections (extended) | 55.2% | — |
| LMArena Hard Prompts | 1396 | — |
| DTBench | 90.7% | — |
| LMCA | 38.3% | — |
| Surface Evolver Bench | — | 48.8% |
| ForecastBench | 60.3 | — |

## Math

- Grok 4.3: 46.0 (#74)
- Kimi K2.7 Code: 52.9 (#48)

| Benchmark | Grok 4.3 | Kimi K2.7 Code |
|---|---|---|
| FrontierMath (Tiers 1-3) | 42.8% | 54% |
| FrontierMath Tier 4 | 14.6% | 12.2% |
| OTIS Mock AIME 2024-2025 | 93.3% | 95.6% |
| ProofBench | 11% | — |
| LMArena Math | 1388 | — |

## Knowledge

- Grok 4.3: 52.5 (#62)
- Kimi K2.7 Code: 53.5 (#57)

| Benchmark | Grok 4.3 | Kimi K2.7 Code |
|---|---|---|
| GPQA Diamond | 88.8% | 87.9% |
| SimpleQA Verified | 33.2% | 36.5% |
| LMArena Expert | 1385 | — |

## Multimodal

- Grok 4.3: 31.6 (#104)
- Kimi K2.7 Code: —

| Benchmark | Grok 4.3 | Kimi K2.7 Code |
|---|---|---|
| LMArena Vision | 1229 | — |
| Blueprint-Bench 2 | 0% | — |

## Multilingual

- Grok 4.3: 50.5 (#120)
- Kimi K2.7 Code: —

| Benchmark | Grok 4.3 | Kimi K2.7 Code |
|---|---|---|
| LMArena Non-English | 1385 | — |
| LMArena Chinese | 1422 | — |
| LMArena French | 1412 | — |
| LMArena German | 1395 | — |
| LMArena Japanese | 1379 | — |
| LMArena Korean | 1356 | — |
| LMArena Russian | 1399 | — |
| LMArena Spanish | 1398 | — |

## Instruction Following

- Grok 4.3: 72.1 (#140)
- Kimi K2.7 Code: —

| Benchmark | Grok 4.3 | Kimi K2.7 Code |
|---|---|---|
| LMArena Instruction Following | 1366 | — |

## Long Context

- Grok 4.3: 42.5 (#123)
- Kimi K2.7 Code: —

| Benchmark | Grok 4.3 | Kimi K2.7 Code |
|---|---|---|
| LMArena Longer Query | 1393 | — |

## Writing & Preference

- Grok 4.3: 58.5 (#118)
- Kimi K2.7 Code: —

| Benchmark | Grok 4.3 | Kimi K2.7 Code |
|---|---|---|
| LMArena Text | 1397 | — |
| LMArena Creative Writing | 1380 | — |
| EQ-Bench 4 | 1075 | — |
| LMArena Multi-Turn | 1406 | — |

## FAQ

### Is Grok 4.3 better than Kimi K2.7 Code?

Grok 4.3 and Kimi K2.7 Code score almost the same on the Noometry Index (43.8 vs 43.3), so choose on price, context window or the category you care about most.

### Which is cheaper, Grok 4.3 or Kimi K2.7 Code?

Grok 4.3 is cheaper. It lists at $1.25 per million input tokens and $2.50 per million output tokens; Kimi K2.7 Code lists at $0.95 and $4.

### Is Grok 4.3 or Kimi K2.7 Code better for coding?

Kimi K2.7 Code scores higher on coding benchmarks: 42.9 versus 41.6 in the Noometry coding category.

### Which has the bigger context window?

Grok 4.3 does, with 1M tokens against 262K.

### How many benchmarks do Grok 4.3 and Kimi K2.7 Code share?

13 benchmarks have published results for both models. Grok 4.3 has 40 scored results on Noometry and Kimi K2.7 Code has 19.