Model comparison
Kimi K2.5 vs Olmo 7b Instruct
Kimi K2.5 is the stronger model overall, scoring 48.1 to 30.3 on the Noometry Index.
Last verified . 10 shared benchmarks.
Allen Institute for AI (Ai2)Summary
- They share 10 benchmarks with published results for both. Kimi K2.5 scores higher in 6 categories and Olmo 7b Instruct in 0 categories; 6 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where Kimi K2.5 leads 65.1 to 25.8.
Side by side
| Kimi K2.5 | Olmo 7b Instruct | |
|---|---|---|
| Provider | Moonshot AI | Allen Institute for AI (Ai2) |
| Noometry Index | 48.1 | 30.3 |
| Released | 2026-01-27 | — |
| Weights | Open | Open |
| Context window | 262K | — |
| Max output | 262K | — |
| Input $ / M tokens | $0.45 | — |
| Output $ / M tokens | $2.25 | — |
| Results tracked | 51 | 10 |
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Category by category
Coding Kimi K2.5 leads
Kimi K2.5: 48.8 (#53), Olmo 7b Instruct: 29.6 (#303)
| Benchmark | Kimi K2.5 | Olmo 7b Instruct |
|---|---|---|
| LMArena Coding | 1474 | 1016 |
| SWE-bench Verified | 73.8% | — |
| SWE-bench Verified (bash only) | 70.8% | — |
| LMArena WebDev | 1437 | — |
| SWE-bench Multilingual | 67.3% | — |
| SciCode | 49% | — |
| WeirdML | 45.6% | — |
| ALE-Bench | 821.65 | — |
Agentic & Tool Use Not comparable
Kimi K2.5: 34.2 (#48), Olmo 7b Instruct: —
| Benchmark | Kimi K2.5 | Olmo 7b Instruct |
|---|---|---|
| Terminal-Bench | 43.2% | — |
| OSWorld | 63.3% | — |
| Vending-Bench 2 | 1,198 | — |
Reasoning Kimi K2.5 leads
Kimi K2.5: 31.2 (#80), Olmo 7b Instruct: 18.8 (#274)
| Benchmark | Kimi K2.5 | Olmo 7b Instruct |
|---|---|---|
| LMArena Hard Prompts | 1453 | 993 |
| 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% | — |
| Chess Puzzles | 12% | — |
| EnigmaEval | 3.4% | — |
| Thematic Generalization | 69.4% | — |
| Epoch Capabilities Index | 148.03 | — |
Math Kimi K2.5 leads
Kimi K2.5: 51.8 (#53), Olmo 7b Instruct: 30.2 (#237)
| Benchmark | Kimi K2.5 | Olmo 7b Instruct |
|---|---|---|
| LMArena Math | 1470 | 1018 |
| MathArena Final-Answer Competitions | 62.3% | — |
| OTIS Mock AIME 2024-2025 | 92.2% | — |
| FrontierMath (Feb 2025 set) | 27.9% | — |
| FrontierMath Tier 4 (v1) | 4.2% | — |
Knowledge Not comparable
Kimi K2.5: 53.6 (#56), Olmo 7b Instruct: —
| Benchmark | Kimi K2.5 | Olmo 7b Instruct |
|---|---|---|
| GPQA Diamond | 87.6% | — |
| Humanity's Last Exam | 24.4% | — |
| SimpleQA Verified | 34.3% | — |
| Vectara Hallucination Rate | 14.2% | — |
| LMArena Expert | 1466 | — |
Multimodal Not comparable
Kimi K2.5: 41.1 (#39), Olmo 7b Instruct: —
| Benchmark | Kimi K2.5 | Olmo 7b Instruct |
|---|---|---|
| LMArena Vision | 1269 | — |
| LMArena Document | 1430 | — |
Multilingual Kimi K2.5 leads
Kimi K2.5: 53.9 (#53), Olmo 7b Instruct: 24.0 (#291)
| Benchmark | Kimi K2.5 | Olmo 7b Instruct |
|---|---|---|
| LMArena Non-English | 1433 | 977 |
| LMArena Chinese | 1495 | 1014 |
| LMArena Russian | 1435 | 947 |
| LMArena French | 1454 | — |
| LMArena German | 1441 | — |
| LMArena Japanese | 1421 | — |
| LMArena Korean | 1410 | — |
| LMArena Spanish | 1450 | — |
Instruction Following Kimi K2.5 leads
Kimi K2.5: 75.3 (#64), Olmo 7b Instruct: 49.0 (#301)
| Benchmark | Kimi K2.5 | Olmo 7b Instruct |
|---|---|---|
| LMArena Instruction Following | 1431 | 978 |
Long Context Not comparable
Kimi K2.5: 52.1 (#7), Olmo 7b Instruct: —
| Benchmark | Kimi K2.5 | Olmo 7b Instruct |
|---|---|---|
| Fiction.LiveBench | 86.1% | — |
| CL-bench | 19.3% | — |
| CL-bench Life | 13.2% | — |
| LMArena Longer Query | 1445 | — |
Writing & Preference Kimi K2.5 leads
Kimi K2.5: 65.1 (#53), Olmo 7b Instruct: 25.8 (#303)
| Benchmark | Kimi K2.5 | Olmo 7b Instruct |
|---|---|---|
| LMArena Text | 1445 | 1032 |
| LMArena Creative Writing | 1423 | 990 |
| LMArena Multi-Turn | 1444 | 1007 |
| EQ-Bench Creative Writing | 1579 | — |
Frequently asked questions
Is Kimi K2.5 better than Olmo 7b Instruct?
Kimi K2.5 is the stronger model overall, scoring 48.1 to 30.3 on the Noometry Index.
Is Kimi K2.5 or Olmo 7b Instruct better for coding?
Kimi K2.5 scores higher on coding benchmarks: 48.8 versus 29.6 in the Noometry coding category.
How many benchmarks do Kimi K2.5 and Olmo 7b Instruct share?
10 benchmarks have published results for both models. Kimi K2.5 has 51 scored results on Noometry and Olmo 7b Instruct has 10.