Model comparison
Granite 4.0 H Small vs Kimi K2 (Jul 2025)
Kimi K2 (Jul 2025) is the stronger model overall, scoring 41.2 to 36.5 on the Noometry Index.
Last verified . 19 shared benchmarks.
Summary
- They share 19 benchmarks with published results for both. Granite 4.0 H Small 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 62.3 to 43.8.
- The biggest single-benchmark swing is Omni-MATH: 29.6% for Granite 4.0 H Small and 65.4% for Kimi K2 (Jul 2025).
Side by side
| Granite 4.0 H Small | Kimi K2 (Jul 2025) | |
|---|---|---|
| Provider | IBM | Moonshot AI |
| Noometry Index | 36.5 | 41.2 |
| Released | — | 2025-07-12 |
| Weights | Open | Open |
| Context window | — | 262K |
| Max output | — | 262K |
| Input $ / M tokens | — | $0.57 |
| Output $ / M tokens | — | $2.30 |
| Results tracked | 19 | 42 |
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Category by category
Coding Kimi K2 (Jul 2025) leads
Granite 4.0 H Small: 36.4 (#209), Kimi K2 (Jul 2025): 42.4 (#102)
| Benchmark | Granite 4.0 H Small | Kimi K2 (Jul 2025) |
|---|---|---|
| LMArena Coding | 1249 | 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
Granite 4.0 H Small: —, Kimi K2 (Jul 2025): 32.4 (#64)
| Benchmark | Granite 4.0 H Small | Kimi K2 (Jul 2025) |
|---|---|---|
| Terminal-Bench | — | 35.7% |
| Berkeley Function Calling Leaderboard | — | 59.1% |
| METR Time Horizons | — | 59.2% |
Reasoning Granite 4.0 H Small leads
Granite 4.0 H Small: 24.4 (#163), Kimi K2 (Jul 2025): 23.3 (#179)
| Benchmark | Granite 4.0 H Small | Kimi K2 (Jul 2025) |
|---|---|---|
| LMArena Hard Prompts | 1240 | 1384 |
| SimpleBench | — | 26.3% |
| Kagi LLM Benchmark | — | 64.4% |
| Epoch Capabilities Index | — | 146.01 |
| ForecastBench | — | 60.2 |
Math Kimi K2 (Jul 2025) leads
Granite 4.0 H Small: 31.4 (#223), Kimi K2 (Jul 2025): 42.7 (#83)
| Benchmark | Granite 4.0 H Small | Kimi K2 (Jul 2025) |
|---|---|---|
| Omni-MATH | 29.6% | 65.4% |
| LMArena Math | 1247 | 1397 |
| FrontierMath (Feb 2025 set) | — | 21.4% |
| FrontierMath Tier 4 (v1) | — | 0% |
Knowledge Kimi K2 (Jul 2025) leads
Granite 4.0 H Small: 32.0 (#215), Kimi K2 (Jul 2025): 37.3 (#157)
| Benchmark | Granite 4.0 H Small | Kimi K2 (Jul 2025) |
|---|---|---|
| MMLU-Pro | 56.9% | 81.9% |
| Vectara Hallucination Rate | 5.2% | 17.9% |
| GPQA (HELM) | 38.3% | 65.3% |
| LMArena Expert | 1251 | 1365 |
| Confabulations | — | 20.4% |
Multilingual Kimi K2 (Jul 2025) leads
Granite 4.0 H Small: 38.6 (#228), Kimi K2 (Jul 2025): 49.6 (#130)
| Benchmark | Granite 4.0 H Small | Kimi K2 (Jul 2025) |
|---|---|---|
| LMArena Non-English | 1216 | 1372 |
| LMArena Chinese | 1249 | 1415 |
| LMArena Russian | 1201 | 1385 |
| LMArena Spanish | 1258 | 1386 |
| LMArena French | — | 1379 |
| LMArena German | — | 1387 |
| LMArena Japanese | — | 1349 |
| LMArena Korean | — | 1325 |
Instruction Following Kimi K2 (Jul 2025) leads
Granite 4.0 H Small: 68.7 (#183), Kimi K2 (Jul 2025): 71.1 (#156)
| Benchmark | Granite 4.0 H Small | Kimi K2 (Jul 2025) |
|---|---|---|
| IFEval | 89% | 85% |
| LMArena Instruction Following | 1222 | 1348 |
Long Context Kimi K2 (Jul 2025) leads
Granite 4.0 H Small: 37.7 (#213), Kimi K2 (Jul 2025): 41.2 (#145)
| Benchmark | Granite 4.0 H Small | Kimi K2 (Jul 2025) |
|---|---|---|
| LMArena Longer Query | 1242 | 1353 |
| Fiction.LiveBench | — | 66.7% |
| CL-bench | — | 17.6% |
Writing & Preference Kimi K2 (Jul 2025) leads
Granite 4.0 H Small: 43.8 (#227), Kimi K2 (Jul 2025): 62.3 (#78)
| Benchmark | Granite 4.0 H Small | Kimi K2 (Jul 2025) |
|---|---|---|
| LMArena Text | 1241 | 1380 |
| LMArena Creative Writing | 1211 | 1350 |
| WildBench | 73.9% | 86.2% |
| LMArena Multi-Turn | 1242 | 1371 |
| Short-Story Creative Writing | — | 85.6% |
| EQ-Bench Creative Writing | — | 1666 |
Frequently asked questions
Is Granite 4.0 H Small better than Kimi K2 (Jul 2025)?
Kimi K2 (Jul 2025) is the stronger model overall, scoring 41.2 to 36.5 on the Noometry Index.
Is Granite 4.0 H Small or Kimi K2 (Jul 2025) better for coding?
Kimi K2 (Jul 2025) scores higher on coding benchmarks: 42.4 versus 36.4 in the Noometry coding category.
How many benchmarks do Granite 4.0 H Small and Kimi K2 (Jul 2025) share?
19 benchmarks have published results for both models. Granite 4.0 H Small has 19 scored results on Noometry and Kimi K2 (Jul 2025) has 42.