Model comparison
Granite 4.0 Micro vs Kimi K2.5
Kimi K2.5 is the stronger model overall, scoring 47.8 to 28.8 on the Noometry Index. Granite 4.0 Micro costs 22× less per token, which makes it the better buy when Kimi K2.5's lead doesn't matter for your workload.
Last verified . 3 shared benchmarks.
Summary
- They share 3 benchmarks with published results for both. Granite 4.0 Micro scores higher in 0 categories and Kimi K2.5 in 5 categories; 5 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where Kimi K2.5 leads 53.6 to 9.9.
- The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 2.8% for Granite 4.0 Micro and 92.2% for Kimi K2.5.
- Granite 4.0 Micro is cheaper at $0.017 / $0.11 per million input/output tokens, against $0.45 / $2.25 for Kimi K2.5.
- Kimi K2.5 accepts more context: 262K tokens versus 131K.
Side by side
| Granite 4.0 Micro | Kimi K2.5 | |
|---|---|---|
| Provider | IBM | Moonshot AI |
| Noometry Index | 28.8 | 47.8 |
| Released | 2025-10-02 | 2026-01-27 |
| Weights | Open | Open |
| Context window | 131K | 262K |
| Max output | 118K | 262K |
| Input $ / M tokens | $0.017 | $0.45 |
| Output $ / M tokens | $0.11 | $2.25 |
| Results tracked | 8 | 51 |
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Category by category
Coding Not comparable
Granite 4.0 Micro: —, Kimi K2.5: 48.7 (#48)
| Benchmark | Granite 4.0 Micro | Kimi K2.5 |
|---|---|---|
| SWE-bench Verified | — | 73.8% |
| SWE-bench Verified (bash only) | — | 70.8% |
| LMArena WebDev | — | 1436 |
| SWE-bench Multilingual | — | 67.3% |
| SciCode | — | 49% |
| WeirdML | — | 45.6% |
| LMArena Coding | — | 1474 |
| ALE-Bench | — | 821.65 |
Agentic & Tool Use Not comparable
Granite 4.0 Micro: —, Kimi K2.5: 34.0 (#44)
| Benchmark | Granite 4.0 Micro | Kimi K2.5 |
|---|---|---|
| Terminal-Bench | — | 43.2% |
| OSWorld | — | 63.3% |
| Vending-Bench 2 | — | 1,198 |
Reasoning Kimi K2.5 leads
Granite 4.0 Micro: 18.5 (#261), Kimi K2.5: 31.2 (#74)
| Benchmark | Granite 4.0 Micro | Kimi K2.5 |
|---|---|---|
| Chess Puzzles | 0% | 12% |
| ARC-AGI-2 | — | 11.8% |
| SimpleBench | — | 46.8% |
| Kagi LLM Benchmark | — | 78.5% |
| NYT Connections (extended) | — | 69.9% |
| ARC-AGI-1 | — | 65.3% |
| CritPt | — | 3.1% |
| EnigmaEval | — | 3.4% |
| Thematic Generalization | — | 69.4% |
| LMArena Hard Prompts | — | 1454 |
| Epoch Capabilities Index | — | 148.05 |
Math Kimi K2.5 leads
Granite 4.0 Micro: 11.2 (#301), Kimi K2.5: 50.3 (#46)
| Benchmark | Granite 4.0 Micro | Kimi K2.5 |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 2.8% | 92.2% |
| MathArena Final-Answer Competitions | — | 62.3% |
| Omni-MATH | 20.9% | — |
| LMArena Math | — | 1470 |
| FrontierMath (Feb 2025 set) | — | 27.9% |
| FrontierMath Tier 4 (v1) | — | 4.2% |
Knowledge Kimi K2.5 leads
Granite 4.0 Micro: 9.9 (#299), Kimi K2.5: 53.6 (#52)
| Benchmark | Granite 4.0 Micro | Kimi K2.5 |
|---|---|---|
| GPQA Diamond | 28.3% | 87.6% |
| Humanity's Last Exam | — | 24.4% |
| SimpleQA Verified | — | 34.3% |
| MMLU-Pro | 39.5% | — |
| Vectara Hallucination Rate | — | 14.2% |
| GPQA (HELM) | 30.7% | — |
| LMArena Expert | — | 1466 |
Multimodal Not comparable
Granite 4.0 Micro: —, Kimi K2.5: 40.4 (#37)
| Benchmark | Granite 4.0 Micro | Kimi K2.5 |
|---|---|---|
| LMArena Vision | — | 1269 |
| LMArena Document | — | 1430 |
Multilingual Not comparable
Granite 4.0 Micro: —, Kimi K2.5: 54.1 (#50)
| Benchmark | Granite 4.0 Micro | Kimi K2.5 |
|---|---|---|
| LMArena Non-English | — | 1433 |
| LMArena Chinese | — | 1495 |
| LMArena French | — | 1454 |
| LMArena German | — | 1441 |
| LMArena Japanese | — | 1422 |
| LMArena Korean | — | 1412 |
| LMArena Russian | — | 1436 |
| LMArena Spanish | — | 1450 |
Instruction Following Kimi K2.5 leads
Granite 4.0 Micro: 70.0 (#164), Kimi K2.5: 75.5 (#60)
| Benchmark | Granite 4.0 Micro | Kimi K2.5 |
|---|---|---|
| IFEval | 84.9% | — |
| LMArena Instruction Following | — | 1431 |
Long Context Not comparable
Granite 4.0 Micro: —, Kimi K2.5: 52.1 (#7)
| Benchmark | Granite 4.0 Micro | Kimi K2.5 |
|---|---|---|
| Fiction.LiveBench | — | 86.1% |
| CL-bench | — | 19.3% |
| CL-bench Life | — | 13.2% |
| LMArena Longer Query | — | 1445 |
Writing & Preference Kimi K2.5 leads
Granite 4.0 Micro: 46.7 (#212), Kimi K2.5: 65.3 (#51)
| Benchmark | Granite 4.0 Micro | Kimi K2.5 |
|---|---|---|
| LMArena Text | — | 1445 |
| LMArena Creative Writing | — | 1423 |
| EQ-Bench Creative Writing | — | 1579 |
| WildBench | 67% | — |
| LMArena Multi-Turn | — | 1444 |
Frequently asked questions
Is Granite 4.0 Micro better than Kimi K2.5?
Kimi K2.5 is the stronger model overall, scoring 47.8 to 28.8 on the Noometry Index. Granite 4.0 Micro costs 22× less per token, which makes it the better buy when Kimi K2.5's lead doesn't matter for your workload.
Which is cheaper, Granite 4.0 Micro or Kimi K2.5?
Granite 4.0 Micro is cheaper. It lists at $0.017 per million input tokens and $0.11 per million output tokens; Kimi K2.5 lists at $0.45 and $2.25.
Which has the bigger context window?
Kimi K2.5 does, with 262K tokens against 131K.
How many benchmarks do Granite 4.0 Micro and Kimi K2.5 share?
3 benchmarks have published results for both models. Granite 4.0 Micro has 8 scored results on Noometry and Kimi K2.5 has 51.