Model comparison
Kimi K2.7 Code vs o1
Kimi K2.7 Code is the stronger model overall, scoring 43.3 to 40.9 on the Noometry Index.
Last verified . 8 shared benchmarks.
Summary
- They share 8 benchmarks with published results for both. Kimi K2.7 Code scores higher in 3 categories and o1 in 2 categories; 4 gaps are clear of the uncertainty.
- The widest gap is in math, where Kimi K2.7 Code leads 52.9 to 36.1.
- The biggest single-benchmark swing is FrontierMath (Tiers 1-3): 54% for Kimi K2.7 Code and 14.7% for o1.
- Kimi K2.7 Code is cheaper at $0.95 / $4 per million input/output tokens, against $15 / $60 for o1.
- Kimi K2.7 Code accepts more context: 262K tokens versus 200K.
- Kimi K2.7 Code has downloadable open weights; the other is API-only.
Side by side
| Kimi K2.7 Code | o1 | |
|---|---|---|
| Provider | Moonshot AI | OpenAI |
| Noometry Index | 43.3 | 40.9 |
| Released | 2026-06-12 | 2024-09-12 |
| Weights | Open | Proprietary |
| Context window | 262K | 200K |
| Max output | 262K | 100K |
| Input $ / M tokens | $0.95 | $15 |
| Output $ / M tokens | $4 | $60 |
| Results tracked | 19 | 52 |
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Category by category
Coding o1 leads
Kimi K2.7 Code: 42.9 (#95), o1: 46.1 (#70)
| Benchmark | Kimi K2.7 Code | o1 |
|---|---|---|
| WeirdML | 54.1% | 47.6% |
| DeepSWE | 30.5% | — |
| FrontierCode | 30.1% | — |
| Aider Polyglot | — | 61.7% |
| LMArena WebDev | 1473 | — |
| SciCode | 47.5% | — |
| LiveBench Coding | — | 69.7% |
| LMArena Coding | — | 1367 |
| CadEval | — | 56% |
| ALE-Bench | 886.23 | — |
| HumanEval+ | — | 89% |
| MBPP+ | — | 80.2% |
Agentic & Tool Use Too close to call
Kimi K2.7 Code: 24.0 (#122), o1: 24.6 (#117)
| Benchmark | Kimi K2.7 Code | o1 |
|---|---|---|
| APEX-Agents | 37.6% | — |
| Cybench | — | 10% |
| GBAEval | 0.9% | — |
| METR Time Horizons | — | 51.1% |
| Vending-Bench 2 | 5,083 | — |
Reasoning Kimi K2.7 Code leads
Kimi K2.7 Code: 39.0 (#61), o1: 27.9 (#111)
| Benchmark | Kimi K2.7 Code | o1 |
|---|---|---|
| SimpleBench | 57.9% | 41.7% |
| Chess Puzzles | 21% | 15% |
| Epoch Capabilities Index | 149.97 | 141.91 |
| ARC-AGI-1 | — | 30.7% |
| CritPt | 10% | — |
| EnigmaEval | — | 5.7% |
| LiveBench Reasoning | — | 91.6% |
| LMArena Hard Prompts | — | 1371 |
| DTBench | — | 74.7% |
| LiveBench Data Analysis | — | 65.5% |
| LMCA | — | 22.3% |
| Surface Evolver Bench | 48.8% | — |
| LiveBench | — | 75.7% |
Math Kimi K2.7 Code leads
Kimi K2.7 Code: 52.9 (#48), o1: 36.1 (#175)
| Benchmark | Kimi K2.7 Code | o1 |
|---|---|---|
| FrontierMath (Tiers 1-3) | 54% | 14.7% |
| OTIS Mock AIME 2024-2025 | 95.6% | 73.3% |
| FrontierMath Tier 4 | 12.2% | — |
| LiveBench Math | — | 80.3% |
| LMArena Math | — | 1388 |
| MATH Level 5 | — | 94.7% |
| FrontierMath (Feb 2025 set) | — | 9.3% |
Knowledge Kimi K2.7 Code leads
Kimi K2.7 Code: 53.5 (#57), o1: 41.5 (#110)
| Benchmark | Kimi K2.7 Code | o1 |
|---|---|---|
| GPQA Diamond | 87.9% | 76.8% |
| SimpleQA Verified | 36.5% | 41.1% |
| Humanity's Last Exam | — | 8% |
| Confabulations | — | 11.7% |
| LMArena Expert | — | 1361 |
Multimodal Not comparable
Kimi K2.7 Code: —, o1: 34.2 (#93)
| Benchmark | Kimi K2.7 Code | o1 |
|---|---|---|
| LMArena Vision | — | 1168 |
| GeoBench | — | 80% |
| VPCT | — | 37% |
| SpatialViz-Bench | — | 41.4% |
Multilingual Not comparable
Kimi K2.7 Code: —, o1: 48.6 (#142)
| Benchmark | Kimi K2.7 Code | o1 |
|---|---|---|
| LMArena Non-English | — | 1358 |
| LMArena Chinese | — | 1394 |
| LMArena French | — | 1344 |
| LMArena German | — | 1337 |
| LMArena Japanese | — | 1346 |
| LMArena Korean | — | 1396 |
| LMArena Russian | — | 1356 |
| LMArena Spanish | — | 1345 |
Instruction Following Not comparable
Kimi K2.7 Code: —, o1: 74.8 (#86)
| Benchmark | Kimi K2.7 Code | o1 |
|---|---|---|
| LiveBench Instruction Following | — | 81.5% |
| LMArena Instruction Following | — | 1367 |
Long Context Not comparable
Kimi K2.7 Code: —, o1: 50.3 (#9)
| Benchmark | Kimi K2.7 Code | o1 |
|---|---|---|
| Fiction.LiveBench | — | 83.3% |
| LMArena Longer Query | — | 1378 |
Writing & Preference Not comparable
Kimi K2.7 Code: —, o1: 55.6 (#144)
| Benchmark | Kimi K2.7 Code | o1 |
|---|---|---|
| LMArena Text | — | 1366 |
| LMArena Creative Writing | — | 1348 |
| Short-Story Creative Writing | — | 70.2% |
| LMArena Multi-Turn | — | 1369 |
| LiveBench Language | — | 65.4% |
Frequently asked questions
Is Kimi K2.7 Code better than o1?
Kimi K2.7 Code is the stronger model overall, scoring 43.3 to 40.9 on the Noometry Index.
Which is cheaper, Kimi K2.7 Code or o1?
Kimi K2.7 Code is cheaper. It lists at $0.95 per million input tokens and $4 per million output tokens; o1 lists at $15 and $60.
Is Kimi K2.7 Code or o1 better for coding?
o1 scores higher on coding benchmarks: 46.1 versus 42.9 in the Noometry coding category.
Which has the bigger context window?
Kimi K2.7 Code does, with 262K tokens against 200K.
How many benchmarks do Kimi K2.7 Code and o1 share?
8 benchmarks have published results for both models. Kimi K2.7 Code has 19 scored results on Noometry and o1 has 52.