Model comparison
Grok 4.1 vs Kimi K2 Thinking Turbo
Kimi K2 Thinking Turbo is the stronger model overall, scoring 45.8 to 41.5 on the Noometry Index.
Last verified . 18 shared benchmarks.
Summary
- They share 18 benchmarks with published results for both. Grok 4.1 scores higher in 3 categories and Kimi K2 Thinking Turbo in 5 categories; 6 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where Kimi K2 Thinking Turbo leads 50.9 to 39.5.
- Kimi K2 Thinking Turbo has downloadable open weights; the other is API-only.
Side by side
| Grok 4.1 | Kimi K2 Thinking Turbo | |
|---|---|---|
| Provider | xAI | Moonshot AI |
| Noometry Index | 41.5 | 45.8 |
| Released | 2025-11-17 | 2025-11-06 |
| Weights | Proprietary | Open |
| Context window | — | — |
| Max output | — | — |
| Input $ / M tokens | — | — |
| Output $ / M tokens | — | — |
| Results tracked | 19 | 21 |
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Category by category
Coding Kimi K2 Thinking Turbo leads
Grok 4.1: 33.7 (#253), Kimi K2 Thinking Turbo: 38.4 (#178)
| Benchmark | Grok 4.1 | Kimi K2 Thinking Turbo |
|---|---|---|
| LMArena WebDev | 1214 | 1322 |
| LMArena Coding | 1445 | 1454 |
Agentic & Tool Use Not comparable
Grok 4.1: 34.1 (#49), Kimi K2 Thinking Turbo: —
| Benchmark | Grok 4.1 | Kimi K2 Thinking Turbo |
|---|---|---|
| Cybench | 39% | — |
Reasoning Kimi K2 Thinking Turbo leads
Grok 4.1: 29.5 (#91), Kimi K2 Thinking Turbo: 32.5 (#75)
| Benchmark | Grok 4.1 | Kimi K2 Thinking Turbo |
|---|---|---|
| LMArena Hard Prompts | 1435 | 1428 |
| Chess Puzzles | — | 20% |
Math Kimi K2 Thinking Turbo leads
Grok 4.1: 38.9 (#120), Kimi K2 Thinking Turbo: 47.4 (#68)
| Benchmark | Grok 4.1 | Kimi K2 Thinking Turbo |
|---|---|---|
| LMArena Math | 1422 | 1429 |
| OTIS Mock AIME 2024-2025 | — | 83.1% |
Knowledge Kimi K2 Thinking Turbo leads
Grok 4.1: 39.5 (#133), Kimi K2 Thinking Turbo: 50.9 (#69)
| Benchmark | Grok 4.1 | Kimi K2 Thinking Turbo |
|---|---|---|
| LMArena Expert | 1417 | 1439 |
| GPQA Diamond | — | 84.2% |
Multilingual Grok 4.1 leads
Grok 4.1: 53.4 (#68), Kimi K2 Thinking Turbo: 51.4 (#109)
| Benchmark | Grok 4.1 | Kimi K2 Thinking Turbo |
|---|---|---|
| LMArena Non-English | 1425 | 1398 |
| LMArena Chinese | 1465 | 1456 |
| LMArena French | 1448 | 1425 |
| LMArena German | 1446 | 1390 |
| LMArena Japanese | 1397 | 1357 |
| LMArena Korean | 1407 | 1330 |
| LMArena Russian | 1434 | 1391 |
| LMArena Spanish | 1438 | 1406 |
Instruction Following Too close to call
Grok 4.1: 73.8 (#111), Kimi K2 Thinking Turbo: 74.0 (#109)
| Benchmark | Grok 4.1 | Kimi K2 Thinking Turbo |
|---|---|---|
| LMArena Instruction Following | 1400 | 1403 |
Long Context Too close to call
Grok 4.1: 43.2 (#100), Kimi K2 Thinking Turbo: 43.2 (#102)
| Benchmark | Grok 4.1 | Kimi K2 Thinking Turbo |
|---|---|---|
| LMArena Longer Query | 1416 | 1415 |
Writing & Preference Grok 4.1 leads
Grok 4.1: 62.4 (#75), Kimi K2 Thinking Turbo: 60.0 (#104)
| Benchmark | Grok 4.1 | Kimi K2 Thinking Turbo |
|---|---|---|
| LMArena Text | 1437 | 1415 |
| LMArena Creative Writing | 1411 | 1374 |
| LMArena Multi-Turn | 1437 | 1414 |
Frequently asked questions
Is Grok 4.1 better than Kimi K2 Thinking Turbo?
Kimi K2 Thinking Turbo is the stronger model overall, scoring 45.8 to 41.5 on the Noometry Index.
Is Grok 4.1 or Kimi K2 Thinking Turbo better for coding?
Kimi K2 Thinking Turbo scores higher on coding benchmarks: 38.4 versus 33.7 in the Noometry coding category.
How many benchmarks do Grok 4.1 and Kimi K2 Thinking Turbo share?
18 benchmarks have published results for both models. Grok 4.1 has 19 scored results on Noometry and Kimi K2 Thinking Turbo has 21.