# Grok 3 vs Kimi K2 Thinking Turbo

> Kimi K2 Thinking Turbo is the stronger model overall, scoring 45.4 to 39.6 on the Noometry Index.

- Canonical page: https://noometry.com/compare/grok-3-vs-kimi-k2-thinking-turbo
- Last updated: 2026-10-10
- Shared benchmarks: 19

## Summary

- They share 19 benchmarks with published results for both. Grok 3 scores higher in 3 categories and Kimi K2 Thinking Turbo in 5 categories; 7 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Kimi K2 Thinking Turbo leads 31.4 to 13.8.
- The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 55.6% for Grok 3 and 83.1% for Kimi K2 Thinking Turbo.
- Kimi K2 Thinking Turbo has downloadable open weights; the other is API-only.

## Snapshot

| | Grok 3 | Kimi K2 Thinking Turbo |
|---|---|---|
| Provider | xAI | Moonshot AI |
| Noometry Index | 39.6 | 45.4 |
| Rank | 150 | 63 |
| Context | — | — |
| Input $/M | — | — |
| Output $/M | — | — |
| Weights | Proprietary | Open |

## Coding

- Grok 3: 41.5 (#113)
- Kimi K2 Thinking Turbo: 38.1 (#166)

| Benchmark | Grok 3 | Kimi K2 Thinking Turbo |
|---|---|---|
| LMArena Coding | 1432 | 1454 |
| Aider Polyglot | 53.3% | — |
| LMArena WebDev | — | 1322 |
| WeirdML | 37.2% | — |

## Agentic & Tool Use

- Grok 3: 30.2 (#69)
- Kimi K2 Thinking Turbo: —

| Benchmark | Grok 3 | Kimi K2 Thinking Turbo |
|---|---|---|
| BALROG | 29.5% | — |

## Reasoning

- Grok 3: 13.8 (#322)
- Kimi K2 Thinking Turbo: 31.4 (#72)

| Benchmark | Grok 3 | Kimi K2 Thinking Turbo |
|---|---|---|
| LMArena Hard Prompts | 1433 | 1428 |
| ARC-AGI-2 | 0% | — |
| SimpleBench | 36.1% | — |
| Kagi LLM Benchmark | 61.3% | — |
| ARC-AGI-1 | 5.5% | — |
| Chess Puzzles | — | 20% |
| Epoch Capabilities Index | 138.34 | — |

## Math

- Grok 3: 36.2 (#122)
- Kimi K2 Thinking Turbo: 45.5 (#62)

| Benchmark | Grok 3 | Kimi K2 Thinking Turbo |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 55.6% | 83.1% |
| LMArena Math | 1390 | 1429 |
| Omni-MATH | 46.4% | — |
| MATH Level 5 | 88.7% | — |
| FrontierMath (Feb 2025 set) | 3.8% | — |
| FrontierMath Tier 4 (v1) | 0% | — |

## Knowledge

- Grok 3: 46.0 (#76)
- Kimi K2 Thinking Turbo: 50.9 (#64)

| Benchmark | Grok 3 | Kimi K2 Thinking Turbo |
|---|---|---|
| GPQA Diamond | 75.8% | 84.2% |
| LMArena Expert | 1420 | 1439 |
| MMLU-Pro | 78.8% | — |
| Confabulations | 14.2% | — |
| Vectara Hallucination Rate | 5.8% | — |
| GPQA (HELM) | 65% | — |

## Multilingual

- Grok 3: 52.5 (#81)
- Kimi K2 Thinking Turbo: 51.6 (#104)

| Benchmark | Grok 3 | Kimi K2 Thinking Turbo |
|---|---|---|
| LMArena Non-English | 1411 | 1398 |
| LMArena Chinese | 1448 | 1457 |
| LMArena French | 1460 | 1425 |
| LMArena German | 1431 | 1390 |
| LMArena Japanese | 1389 | 1356 |
| LMArena Korean | 1374 | 1329 |
| LMArena Russian | 1416 | 1390 |
| LMArena Spanish | 1417 | 1407 |

## Instruction Following

- Grok 3: 75.2 (#69)
- Kimi K2 Thinking Turbo: 74.2 (#103)

| Benchmark | Grok 3 | Kimi K2 Thinking Turbo |
|---|---|---|
| LMArena Instruction Following | 1409 | 1403 |
| IFEval | 88.4% | — |

## Long Context

- Grok 3: 38.7 (#187)
- Kimi K2 Thinking Turbo: 43.2 (#99)

| Benchmark | Grok 3 | Kimi K2 Thinking Turbo |
|---|---|---|
| LMArena Longer Query | 1439 | 1415 |
| Fiction.LiveBench | 58.3% | — |

## Writing & Preference

- Grok 3: 56.0 (#136)
- Kimi K2 Thinking Turbo: 60.2 (#99)

| Benchmark | Grok 3 | Kimi K2 Thinking Turbo |
|---|---|---|
| LMArena Text | 1426 | 1415 |
| LMArena Creative Writing | 1414 | 1373 |
| LMArena Multi-Turn | 1424 | 1414 |
| Short-Story Creative Writing | 76.4% | — |
| EQ-Bench Creative Writing | 1186 | — |
| WildBench | 84.9% | — |

## FAQ

### Is Grok 3 better than Kimi K2 Thinking Turbo?

Kimi K2 Thinking Turbo is the stronger model overall, scoring 45.4 to 39.6 on the Noometry Index.

### Is Grok 3 or Kimi K2 Thinking Turbo better for coding?

Grok 3 scores higher on coding benchmarks: 41.5 versus 38.1 in the Noometry coding category.

### How many benchmarks do Grok 3 and Kimi K2 Thinking Turbo share?

19 benchmarks have published results for both models. Grok 3 has 40 scored results on Noometry and Kimi K2 Thinking Turbo has 21.