Model comparison
Kimi K2 (Jul 2025) vs OLMo 2 Furious 13B
Kimi K2 (Jul 2025) is the stronger model overall, scoring 40.9 to 29.2 on the Noometry Index.
Last verified . 5 shared benchmarks.
Allen Institute for AI (Ai2)Summary
- They share 5 benchmarks with published results for both. Kimi K2 (Jul 2025) scores higher in 6 categories and OLMo 2 Furious 13B in 0 categories; 6 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where Kimi K2 (Jul 2025) leads 62.5 to 43.0.
- The biggest single-benchmark swing is MMLU-Pro: 81.9% for Kimi K2 (Jul 2025) and 31% for OLMo 2 Furious 13B.
Side by side
| Kimi K2 (Jul 2025) | OLMo 2 Furious 13B | |
|---|---|---|
| Provider | Moonshot AI | Allen Institute for AI (Ai2) |
| Noometry Index | 40.9 | 29.2 |
| Released | 2025-07-12 | 2024-12-31 |
| Weights | Open | Open |
| Context window | 262K | — |
| Max output | 262K | — |
| Input $ / M tokens | $0.57 | — |
| Output $ / M tokens | $2.30 | — |
| Results tracked | 42 | 12 |
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Category by category
Coding Kimi K2 (Jul 2025) leads
Kimi K2 (Jul 2025): 43.1 (#83), OLMo 2 Furious 13B: 28.1 (#309)
| Benchmark | Kimi K2 (Jul 2025) | OLMo 2 Furious 13B |
|---|---|---|
| SWE-bench Verified (bash only) | 63.4% | — |
| Aider Polyglot | 59.1% | — |
| GSO | 4.9% | — |
| WeirdML | 42.8% | — |
| LiveBench Coding | — | 10.4% |
| LMArena Coding | 1399 | — |
| ALE-Bench | 597.5 | — |
Agentic & Tool Use Not comparable
Kimi K2 (Jul 2025): 32.2 (#59), OLMo 2 Furious 13B: —
| Benchmark | Kimi K2 (Jul 2025) | OLMo 2 Furious 13B |
|---|---|---|
| Terminal-Bench | 35.7% | — |
| Berkeley Function Calling Leaderboard | 59.1% | — |
| METR Time Horizons | 59.2% | — |
Reasoning Kimi K2 (Jul 2025) leads
Kimi K2 (Jul 2025): 22.7 (#173), OLMo 2 Furious 13B: 14.8 (#312)
| Benchmark | Kimi K2 (Jul 2025) | OLMo 2 Furious 13B |
|---|---|---|
| SimpleBench | 26.3% | — |
| Kagi LLM Benchmark | 64.4% | — |
| LiveBench Reasoning | — | 16.3% |
| LMArena Hard Prompts | 1384 | — |
| LiveBench Data Analysis | — | 20.6% |
| Epoch Capabilities Index | 146.02 | — |
| ForecastBench | 60.2 | — |
| LiveBench | — | 22.1% |
Math Kimi K2 (Jul 2025) leads
Kimi K2 (Jul 2025): 40.1 (#81), OLMo 2 Furious 13B: 21.3 (#270)
| Benchmark | Kimi K2 (Jul 2025) | OLMo 2 Furious 13B |
|---|---|---|
| Omni-MATH | 65.4% | 15.6% |
| LiveBench Math | — | 13.6% |
| LMArena Math | 1396 | — |
| FrontierMath (Feb 2025 set) | 21.4% | — |
| FrontierMath Tier 4 (v1) | 0% | — |
Knowledge Kimi K2 (Jul 2025) leads
Kimi K2 (Jul 2025): 36.9 (#153), OLMo 2 Furious 13B: 18.0 (#278)
| Benchmark | Kimi K2 (Jul 2025) | OLMo 2 Furious 13B |
|---|---|---|
| MMLU-Pro | 81.9% | 31% |
| GPQA (HELM) | 65.3% | 31.6% |
| Confabulations | 20.4% | — |
| Vectara Hallucination Rate | 17.9% | — |
| LMArena Expert | 1363 | — |
Multilingual Not comparable
Kimi K2 (Jul 2025): 49.8 (#125), OLMo 2 Furious 13B: —
| Benchmark | Kimi K2 (Jul 2025) | OLMo 2 Furious 13B |
|---|---|---|
| LMArena Non-English | 1372 | — |
| LMArena Chinese | 1416 | — |
| LMArena French | 1379 | — |
| LMArena German | 1386 | — |
| LMArena Japanese | 1349 | — |
| LMArena Korean | 1324 | — |
| LMArena Russian | 1384 | — |
| LMArena Spanish | 1383 | — |
Instruction Following Kimi K2 (Jul 2025) leads
Kimi K2 (Jul 2025): 71.3 (#151), OLMo 2 Furious 13B: 61.1 (#243)
| Benchmark | Kimi K2 (Jul 2025) | OLMo 2 Furious 13B |
|---|---|---|
| IFEval | 85% | 73% |
| LiveBench Instruction Following | — | 60.6% |
| LMArena Instruction Following | 1347 | — |
Long Context Not comparable
Kimi K2 (Jul 2025): 41.2 (#140), OLMo 2 Furious 13B: —
| Benchmark | Kimi K2 (Jul 2025) | OLMo 2 Furious 13B |
|---|---|---|
| Fiction.LiveBench | 66.7% | — |
| CL-bench | 17.6% | — |
| LMArena Longer Query | 1353 | — |
Writing & Preference Kimi K2 (Jul 2025) leads
Kimi K2 (Jul 2025): 62.5 (#76), OLMo 2 Furious 13B: 43.0 (#226)
| Benchmark | Kimi K2 (Jul 2025) | OLMo 2 Furious 13B |
|---|---|---|
| WildBench | 86.2% | 68.9% |
| LMArena Text | 1380 | — |
| LMArena Creative Writing | 1349 | — |
| Short-Story Creative Writing | 85.6% | — |
| EQ-Bench Creative Writing | 1666 | — |
| LMArena Multi-Turn | 1371 | — |
| LiveBench Language | — | 11.2% |
Frequently asked questions
Is Kimi K2 (Jul 2025) better than OLMo 2 Furious 13B?
Kimi K2 (Jul 2025) is the stronger model overall, scoring 40.9 to 29.2 on the Noometry Index.
Is Kimi K2 (Jul 2025) or OLMo 2 Furious 13B better for coding?
Kimi K2 (Jul 2025) scores higher on coding benchmarks: 43.1 versus 28.1 in the Noometry coding category.
How many benchmarks do Kimi K2 (Jul 2025) and OLMo 2 Furious 13B share?
5 benchmarks have published results for both models. Kimi K2 (Jul 2025) has 42 scored results on Noometry and OLMo 2 Furious 13B has 12.