# Kimi K2 Thinking Turbo vs Step 3

> Kimi K2 Thinking Turbo is the stronger model overall, scoring 45.8 to 40.5 on the Noometry Index.

- Canonical page: https://noometry.com/compare/kimi-k2-thinking-turbo-vs-step-3
- Last updated: 2026-10-11
- Shared benchmarks: 15

## Summary

- They share 15 benchmarks with published results for both. Kimi K2 Thinking Turbo scores higher in 7 categories and Step 3 in 1 category; 8 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where Kimi K2 Thinking Turbo leads 50.9 to 36.8.

## Snapshot

| | Kimi K2 Thinking Turbo | Step 3 |
|---|---|---|
| Provider | Moonshot AI | StepFun |
| Noometry Index | 45.8 | 40.5 |
| Rank | 70 | 149 |
| Context | — | — |
| Input $/M | — | — |
| Output $/M | — | — |
| Weights | Open | Open |

## Coding

- Kimi K2 Thinking Turbo: 38.4 (#178)
- Step 3: 40.1 (#147)

| Benchmark | Kimi K2 Thinking Turbo | Step 3 |
|---|---|---|
| LMArena Coding | 1454 | 1367 |
| LMArena WebDev | 1322 | — |

## Reasoning

- Kimi K2 Thinking Turbo: 32.5 (#75)
- Step 3: 28.4 (#105)

| Benchmark | Kimi K2 Thinking Turbo | Step 3 |
|---|---|---|
| LMArena Hard Prompts | 1428 | 1355 |
| Kagi LLM Benchmark | — | 62.3% |
| Chess Puzzles | 20% | — |

## Math

- Kimi K2 Thinking Turbo: 47.4 (#68)
- Step 3: 37.6 (#148)

| Benchmark | Kimi K2 Thinking Turbo | Step 3 |
|---|---|---|
| LMArena Math | 1429 | 1366 |
| OTIS Mock AIME 2024-2025 | 83.1% | — |

## Knowledge

- Kimi K2 Thinking Turbo: 50.9 (#69)
- Step 3: 36.8 (#164)

| Benchmark | Kimi K2 Thinking Turbo | Step 3 |
|---|---|---|
| LMArena Expert | 1439 | 1333 |
| GPQA Diamond | 84.2% | — |

## Multimodal

- Kimi K2 Thinking Turbo: —
- Step 3: 35.5 (#86)

| Benchmark | Kimi K2 Thinking Turbo | Step 3 |
|---|---|---|
| LMArena Vision | — | 1177 |

## Multilingual

- Kimi K2 Thinking Turbo: 51.4 (#109)
- Step 3: 46.3 (#159)

| Benchmark | Kimi K2 Thinking Turbo | Step 3 |
|---|---|---|
| LMArena Non-English | 1398 | 1327 |
| LMArena Chinese | 1456 | 1397 |
| LMArena German | 1390 | 1371 |
| LMArena Korean | 1330 | 1269 |
| LMArena Russian | 1391 | 1331 |
| LMArena Spanish | 1406 | 1371 |
| LMArena French | 1425 | — |
| LMArena Japanese | 1357 | — |

## Instruction Following

- Kimi K2 Thinking Turbo: 74.0 (#109)
- Step 3: 70.4 (#164)

| Benchmark | Kimi K2 Thinking Turbo | Step 3 |
|---|---|---|
| LMArena Instruction Following | 1403 | 1332 |

## Long Context

- Kimi K2 Thinking Turbo: 43.2 (#102)
- Step 3: 40.3 (#157)

| Benchmark | Kimi K2 Thinking Turbo | Step 3 |
|---|---|---|
| LMArena Longer Query | 1415 | 1326 |

## Writing & Preference

- Kimi K2 Thinking Turbo: 60.0 (#104)
- Step 3: 54.3 (#151)

| Benchmark | Kimi K2 Thinking Turbo | Step 3 |
|---|---|---|
| LMArena Text | 1415 | 1350 |
| LMArena Creative Writing | 1374 | 1321 |
| LMArena Multi-Turn | 1414 | 1341 |

## FAQ

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

Kimi K2 Thinking Turbo is the stronger model overall, scoring 45.8 to 40.5 on the Noometry Index.

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

Step 3 scores higher on coding benchmarks: 40.1 versus 38.4 in the Noometry coding category.

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

15 benchmarks have published results for both models. Kimi K2 Thinking Turbo has 21 scored results on Noometry and Step 3 has 17.