Model comparison
Grok-2 (Dec 2024) vs Kimi K2.6
Kimi K2.6 is the stronger model overall, scoring 47.7 to 33.7 on the Noometry Index.
Last verified . 23 shared benchmarks.
Summary
- They share 23 benchmarks with published results for both. Grok-2 (Dec 2024) scores higher in 0 categories and Kimi K2.6 in 8 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in math, where Kimi K2.6 leads 57.0 to 20.8.
- The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 11.5% for Grok-2 (Dec 2024) and 96.1% for Kimi K2.6.
- Kimi K2.6 has downloadable open weights; the other is API-only.
Side by side
| Grok-2 (Dec 2024) | Kimi K2.6 | |
|---|---|---|
| Provider | xAI | Moonshot AI |
| Noometry Index | 33.7 | 47.7 |
| Released | 2024-08-13 | 2026-04-20 |
| Weights | Proprietary | Open |
| Context window | — | 262K |
| Max output | — | 262K |
| Input $ / M tokens | — | $0.95 |
| Output $ / M tokens | — | $4 |
| Results tracked | 34 | 51 |
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Category by category
Coding Kimi K2.6 leads
Grok-2 (Dec 2024): 33.3 (#258), Kimi K2.6: 50.7 (#43)
| Benchmark | Grok-2 (Dec 2024) | Kimi K2.6 |
|---|---|---|
| WeirdML | 22.2% | 55.9% |
| LMArena Coding | 1287 | 1488 |
| SWE-bench Verified | — | 76.7% |
| LMArena WebDev | — | 1509 |
| SciCode | — | 53.5% |
| LiveBench Coding | 46.4% | — |
| ALE-Bench | — | 1,093 |
Agentic & Tool Use Not comparable
Grok-2 (Dec 2024): —, Kimi K2.6: 21.9 (#137)
| Benchmark | Grok-2 (Dec 2024) | Kimi K2.6 |
|---|---|---|
| OSWorld 2.0 | — | 4.6% |
| ExploitBench | — | 18.4% |
| GBAEval | — | 0.9% |
| GDP.pdf | — | 12% |
| Vending-Bench 2 | — | 6,205 |
Reasoning Kimi K2.6 leads
Grok-2 (Dec 2024): 16.9 (#299), Kimi K2.6: 40.5 (#55)
| Benchmark | Grok-2 (Dec 2024) | Kimi K2.6 |
|---|---|---|
| LMArena Hard Prompts | 1272 | 1470 |
| DTBench | 65.2% | 90.9% |
| Epoch Capabilities Index | 130.48 | 151.05 |
| SimpleBench | 22.7% | — |
| NYT Connections (extended) | — | 87.2% |
| CritPt | — | 8% |
| Chess Puzzles | — | 26% |
| EBR-Bench | — | 2.4% |
| LiveBench Reasoning | 54.8% | — |
| Mystery Game Puzzles | — | 18% |
| LiveBench Data Analysis | 54.5% | — |
| LMCA | — | 37.3% |
| LiveBench | 54.3% | — |
Math Kimi K2.6 leads
Grok-2 (Dec 2024): 20.8 (#284), Kimi K2.6: 57.0 (#41)
| Benchmark | Grok-2 (Dec 2024) | Kimi K2.6 |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 11.5% | 96.1% |
| LMArena Math | 1283 | 1475 |
| FrontierMath (Feb 2025 set) | 0.7% | 39% |
| FrontierMath (Tiers 1-3) | — | 57.2% |
| FrontierMath Tier 4 | — | 25.6% |
| MathArena Final-Answer Competitions | — | 72.9% |
| ProofBench | — | 16% |
| LiveBench Math | 54.9% | — |
| MATH Level 5 | 63.5% | — |
| FrontierMath Tier 4 (v1) | — | 14.6% |
Knowledge Kimi K2.6 leads
Grok-2 (Dec 2024): 29.8 (#233), Kimi K2.6: 54.0 (#54)
| Benchmark | Grok-2 (Dec 2024) | Kimi K2.6 |
|---|---|---|
| GPQA Diamond | 53.8% | 90.8% |
| LMArena Expert | 1254 | 1491 |
| SimpleQA Verified | — | 34.9% |
| Confabulations | 20.1% | — |
| Vectara Hallucination Rate | — | 10.8% |
Multimodal Not comparable
Grok-2 (Dec 2024): —, Kimi K2.6: 31.6 (#103)
| Benchmark | Grok-2 (Dec 2024) | Kimi K2.6 |
|---|---|---|
| LMArena Vision | — | 1283 |
| Blueprint-Bench 2 | — | 3.9% |
| Furniture Assembly | — | 21.7% |
| LMArena Document | — | 1451 |
Multilingual Kimi K2.6 leads
Grok-2 (Dec 2024): 43.1 (#188), Kimi K2.6: 54.9 (#37)
| Benchmark | Grok-2 (Dec 2024) | Kimi K2.6 |
|---|---|---|
| LMArena Non-English | 1282 | 1446 |
| LMArena Chinese | 1289 | 1521 |
| LMArena French | 1318 | 1471 |
| LMArena German | 1287 | 1450 |
| LMArena Japanese | 1244 | 1443 |
| LMArena Korean | 1237 | 1427 |
| LMArena Russian | 1286 | 1446 |
| LMArena Spanish | 1281 | 1464 |
Instruction Following Kimi K2.6 leads
Grok-2 (Dec 2024): 66.9 (#202), Kimi K2.6: 76.3 (#43)
| Benchmark | Grok-2 (Dec 2024) | Kimi K2.6 |
|---|---|---|
| LMArena Instruction Following | 1270 | 1451 |
| LiveBench Instruction Following | 69.6% | — |
Long Context Kimi K2.6 leads
Grok-2 (Dec 2024): 38.8 (#190), Kimi K2.6: 44.9 (#52)
| Benchmark | Grok-2 (Dec 2024) | Kimi K2.6 |
|---|---|---|
| LMArena Longer Query | 1276 | 1468 |
Writing & Preference Kimi K2.6 leads
Grok-2 (Dec 2024): 48.6 (#198), Kimi K2.6: 68.5 (#26)
| Benchmark | Grok-2 (Dec 2024) | Kimi K2.6 |
|---|---|---|
| LMArena Text | 1305 | 1455 |
| LMArena Creative Writing | 1284 | 1434 |
| LMArena Multi-Turn | 1290 | 1453 |
| Short-Story Creative Writing | 63.6% | — |
| EQ-Bench Creative Writing | — | 1725 |
| EQ-Bench 4 | — | 1202 |
| LiveBench Language | 45.6% | — |
Frequently asked questions
Is Grok-2 (Dec 2024) better than Kimi K2.6?
Kimi K2.6 is the stronger model overall, scoring 47.7 to 33.7 on the Noometry Index.
Is Grok-2 (Dec 2024) or Kimi K2.6 better for coding?
Kimi K2.6 scores higher on coding benchmarks: 50.7 versus 33.3 in the Noometry coding category.
How many benchmarks do Grok-2 (Dec 2024) and Kimi K2.6 share?
23 benchmarks have published results for both models. Grok-2 (Dec 2024) has 34 scored results on Noometry and Kimi K2.6 has 51.