Model comparison
Grok 2 Mini 2024 08 13 vs Kimi K2 (Jul 2025)
Kimi K2 (Jul 2025) is the stronger model overall, scoring 40.9 to 37.0 on the Noometry Index.
Last verified . 17 shared benchmarks.
Summary
- They share 17 benchmarks with published results for both. Grok 2 Mini 2024 08 13 scores higher in 1 category and Kimi K2 (Jul 2025) in 7 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where Kimi K2 (Jul 2025) leads 62.5 to 47.5.
- Kimi K2 (Jul 2025) has downloadable open weights; the other is API-only.
Side by side
| Grok 2 Mini 2024 08 13 | Kimi K2 (Jul 2025) | |
|---|---|---|
| Provider | xAI | Moonshot AI |
| Noometry Index | 37.0 | 40.9 |
| Released | 2024-08-13 | 2025-07-12 |
| Weights | Proprietary | Open |
| Context window | — | 262K |
| Max output | — | 262K |
| Input $ / M tokens | — | $0.57 |
| Output $ / M tokens | — | $2.30 |
| Results tracked | 17 | 42 |
Sponsored placements are available on pages like this one. Advertise on Noometry
Category by category
Coding Kimi K2 (Jul 2025) leads
Grok 2 Mini 2024 08 13: 36.4 (#194), Kimi K2 (Jul 2025): 43.1 (#83)
| Benchmark | Grok 2 Mini 2024 08 13 | Kimi K2 (Jul 2025) |
|---|---|---|
| LMArena Coding | 1269 | 1399 |
| SWE-bench Verified (bash only) | — | 63.4% |
| Aider Polyglot | — | 59.1% |
| GSO | — | 4.9% |
| WeirdML | — | 42.8% |
| ALE-Bench | — | 597.5 |
Agentic & Tool Use Not comparable
Grok 2 Mini 2024 08 13: —, Kimi K2 (Jul 2025): 32.2 (#59)
| Benchmark | Grok 2 Mini 2024 08 13 | Kimi K2 (Jul 2025) |
|---|---|---|
| Terminal-Bench | — | 35.7% |
| Berkeley Function Calling Leaderboard | — | 59.1% |
| METR Time Horizons | — | 59.2% |
Reasoning Grok 2 Mini 2024 08 13 leads
Grok 2 Mini 2024 08 13: 23.7 (#162), Kimi K2 (Jul 2025): 22.7 (#173)
| Benchmark | Grok 2 Mini 2024 08 13 | Kimi K2 (Jul 2025) |
|---|---|---|
| LMArena Hard Prompts | 1255 | 1384 |
| SimpleBench | — | 26.3% |
| Kagi LLM Benchmark | — | 64.4% |
| Epoch Capabilities Index | — | 146.02 |
| ForecastBench | — | 60.2 |
Math Kimi K2 (Jul 2025) leads
Grok 2 Mini 2024 08 13: 32.8 (#185), Kimi K2 (Jul 2025): 40.1 (#81)
| Benchmark | Grok 2 Mini 2024 08 13 | Kimi K2 (Jul 2025) |
|---|---|---|
| LMArena Math | 1265 | 1396 |
| Omni-MATH | — | 65.4% |
| FrontierMath (Feb 2025 set) | — | 21.4% |
| FrontierMath Tier 4 (v1) | — | 0% |
Knowledge Kimi K2 (Jul 2025) leads
Grok 2 Mini 2024 08 13: 33.4 (#195), Kimi K2 (Jul 2025): 36.9 (#153)
| Benchmark | Grok 2 Mini 2024 08 13 | Kimi K2 (Jul 2025) |
|---|---|---|
| LMArena Expert | 1238 | 1363 |
| MMLU-Pro | — | 81.9% |
| Confabulations | — | 20.4% |
| Vectara Hallucination Rate | — | 17.9% |
| GPQA (HELM) | — | 65.3% |
Multilingual Kimi K2 (Jul 2025) leads
Grok 2 Mini 2024 08 13: 41.6 (#203), Kimi K2 (Jul 2025): 49.8 (#125)
| Benchmark | Grok 2 Mini 2024 08 13 | Kimi K2 (Jul 2025) |
|---|---|---|
| LMArena Non-English | 1257 | 1372 |
| LMArena Chinese | 1262 | 1416 |
| LMArena French | 1285 | 1379 |
| LMArena German | 1273 | 1386 |
| LMArena Japanese | 1213 | 1349 |
| LMArena Korean | 1195 | 1324 |
| LMArena Russian | 1261 | 1384 |
| LMArena Spanish | 1278 | 1383 |
Instruction Following Kimi K2 (Jul 2025) leads
Grok 2 Mini 2024 08 13: 65.7 (#215), Kimi K2 (Jul 2025): 71.3 (#151)
| Benchmark | Grok 2 Mini 2024 08 13 | Kimi K2 (Jul 2025) |
|---|---|---|
| LMArena Instruction Following | 1245 | 1347 |
| IFEval | — | 85% |
Long Context Kimi K2 (Jul 2025) leads
Grok 2 Mini 2024 08 13: 38.4 (#191), Kimi K2 (Jul 2025): 41.2 (#140)
| Benchmark | Grok 2 Mini 2024 08 13 | Kimi K2 (Jul 2025) |
|---|---|---|
| LMArena Longer Query | 1267 | 1353 |
| Fiction.LiveBench | — | 66.7% |
| CL-bench | — | 17.6% |
Writing & Preference Kimi K2 (Jul 2025) leads
Grok 2 Mini 2024 08 13: 47.5 (#207), Kimi K2 (Jul 2025): 62.5 (#76)
| Benchmark | Grok 2 Mini 2024 08 13 | Kimi K2 (Jul 2025) |
|---|---|---|
| LMArena Text | 1281 | 1380 |
| LMArena Creative Writing | 1242 | 1349 |
| LMArena Multi-Turn | 1265 | 1371 |
| Short-Story Creative Writing | — | 85.6% |
| EQ-Bench Creative Writing | — | 1666 |
| WildBench | — | 86.2% |
Frequently asked questions
Is Grok 2 Mini 2024 08 13 better than Kimi K2 (Jul 2025)?
Kimi K2 (Jul 2025) is the stronger model overall, scoring 40.9 to 37.0 on the Noometry Index.
Is Grok 2 Mini 2024 08 13 or Kimi K2 (Jul 2025) better for coding?
Kimi K2 (Jul 2025) scores higher on coding benchmarks: 43.1 versus 36.4 in the Noometry coding category.
How many benchmarks do Grok 2 Mini 2024 08 13 and Kimi K2 (Jul 2025) share?
17 benchmarks have published results for both models. Grok 2 Mini 2024 08 13 has 17 scored results on Noometry and Kimi K2 (Jul 2025) has 42.