Model comparison
Kimi K2 (Jul 2025) vs Olmo 2 0325 32b Instruct
Kimi K2 (Jul 2025) is the stronger model overall, scoring 41.2 to 32.7 on the Noometry Index.
Last verified . 16 shared benchmarks.
Allen Institute for AI (Ai2)Summary
- They share 16 benchmarks with published results for both. Kimi K2 (Jul 2025) scores higher in 7 categories and Olmo 2 0325 32b Instruct in 1 category; 7 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where Kimi K2 (Jul 2025) leads 62.3 to 42.1.
- The biggest single-benchmark swing is Omni-MATH: 65.4% for Kimi K2 (Jul 2025) and 16.1% for Olmo 2 0325 32b Instruct.
Side by side
| Kimi K2 (Jul 2025) | Olmo 2 0325 32b Instruct | |
|---|---|---|
| Provider | Moonshot AI | Allen Institute for AI (Ai2) |
| Noometry Index | 41.2 | 32.7 |
| 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 | 42 | 16 |
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Category by category
Coding Kimi K2 (Jul 2025) leads
Kimi K2 (Jul 2025): 42.4 (#102), Olmo 2 0325 32b Instruct: 35.2 (#227)
| Benchmark | Kimi K2 (Jul 2025) | Olmo 2 0325 32b Instruct |
|---|---|---|
| LMArena Coding | 1399 | 1210 |
| 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
Kimi K2 (Jul 2025): 32.4 (#64), Olmo 2 0325 32b Instruct: —
| Benchmark | Kimi K2 (Jul 2025) | Olmo 2 0325 32b Instruct |
|---|---|---|
| Terminal-Bench | 35.7% | — |
| Berkeley Function Calling Leaderboard | 59.1% | — |
| METR Time Horizons | 59.2% | — |
Reasoning Too close to call
Kimi K2 (Jul 2025): 23.3 (#179), Olmo 2 0325 32b Instruct: 23.6 (#175)
| Benchmark | Kimi K2 (Jul 2025) | Olmo 2 0325 32b Instruct |
|---|---|---|
| LMArena Hard Prompts | 1384 | 1208 |
| SimpleBench | 26.3% | — |
| Kagi LLM Benchmark | 64.4% | — |
| Epoch Capabilities Index | 146.01 | — |
| ForecastBench | 60.2 | — |
Math Kimi K2 (Jul 2025) leads
Kimi K2 (Jul 2025): 42.7 (#83), Olmo 2 0325 32b Instruct: 26.8 (#255)
| Benchmark | Kimi K2 (Jul 2025) | Olmo 2 0325 32b Instruct |
|---|---|---|
| Omni-MATH | 65.4% | 16.1% |
| LMArena Math | 1397 | 1208 |
| FrontierMath (Feb 2025 set) | 21.4% | — |
| FrontierMath Tier 4 (v1) | 0% | — |
Knowledge Kimi K2 (Jul 2025) leads
Kimi K2 (Jul 2025): 37.3 (#157), Olmo 2 0325 32b Instruct: 19.5 (#279)
| Benchmark | Kimi K2 (Jul 2025) | Olmo 2 0325 32b Instruct |
|---|---|---|
| MMLU-Pro | 81.9% | 41.4% |
| GPQA (HELM) | 65.3% | 28.7% |
| Confabulations | 20.4% | — |
| Vectara Hallucination Rate | 17.9% | — |
| LMArena Expert | 1365 | — |
Multilingual Kimi K2 (Jul 2025) leads
Kimi K2 (Jul 2025): 49.6 (#130), Olmo 2 0325 32b Instruct: 34.8 (#248)
| Benchmark | Kimi K2 (Jul 2025) | Olmo 2 0325 32b Instruct |
|---|---|---|
| LMArena Non-English | 1372 | 1160 |
| LMArena Chinese | 1415 | 1192 |
| LMArena Russian | 1385 | 1187 |
| LMArena French | 1379 | — |
| LMArena German | 1387 | — |
| LMArena Japanese | 1349 | — |
| LMArena Korean | 1325 | — |
| LMArena Spanish | 1386 | — |
Instruction Following Kimi K2 (Jul 2025) leads
Kimi K2 (Jul 2025): 71.1 (#156), Olmo 2 0325 32b Instruct: 61.5 (#244)
| Benchmark | Kimi K2 (Jul 2025) | Olmo 2 0325 32b Instruct |
|---|---|---|
| IFEval | 85% | 78% |
| LMArena Instruction Following | 1348 | 1186 |
Long Context Kimi K2 (Jul 2025) leads
Kimi K2 (Jul 2025): 41.2 (#145), Olmo 2 0325 32b Instruct: 36.2 (#234)
| Benchmark | Kimi K2 (Jul 2025) | Olmo 2 0325 32b Instruct |
|---|---|---|
| LMArena Longer Query | 1353 | 1194 |
| Fiction.LiveBench | 66.7% | — |
| CL-bench | 17.6% | — |
Writing & Preference Kimi K2 (Jul 2025) leads
Kimi K2 (Jul 2025): 62.3 (#78), Olmo 2 0325 32b Instruct: 42.1 (#236)
| Benchmark | Kimi K2 (Jul 2025) | Olmo 2 0325 32b Instruct |
|---|---|---|
| LMArena Text | 1380 | 1218 |
| LMArena Creative Writing | 1350 | 1199 |
| WildBench | 86.2% | 73.4% |
| LMArena Multi-Turn | 1371 | 1221 |
| Short-Story Creative Writing | 85.6% | — |
| EQ-Bench Creative Writing | 1666 | — |
Frequently asked questions
Is Kimi K2 (Jul 2025) better than Olmo 2 0325 32b Instruct?
Kimi K2 (Jul 2025) is the stronger model overall, scoring 41.2 to 32.7 on the Noometry Index.
Is Kimi K2 (Jul 2025) or Olmo 2 0325 32b Instruct better for coding?
Kimi K2 (Jul 2025) scores higher on coding benchmarks: 42.4 versus 35.2 in the Noometry coding category.
How many benchmarks do Kimi K2 (Jul 2025) and Olmo 2 0325 32b Instruct share?
16 benchmarks have published results for both models. Kimi K2 (Jul 2025) has 42 scored results on Noometry and Olmo 2 0325 32b Instruct has 16.