Model comparison
Claude 3 Opus vs Kimi K2.7 Code
Kimi K2.7 Code is the stronger model overall, scoring 43.3 to 29.5 on the Noometry Index.
Last verified . 7 shared benchmarks.
Summary
- They share 7 benchmarks with published results for both. Claude 3 Opus scores higher in 1 category and Kimi K2.7 Code in 4 categories; 4 gaps are clear of the uncertainty.
- The widest gap is in math, where Kimi K2.7 Code leads 52.9 to 14.8.
- The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 4.7% for Claude 3 Opus and 95.6% for Kimi K2.7 Code.
- Kimi K2.7 Code has downloadable open weights; the other is API-only.
Side by side
| Claude 3 Opus | Kimi K2.7 Code | |
|---|---|---|
| Provider | Anthropic | Moonshot AI |
| Noometry Index | 29.5 | 43.3 |
| Released | 2024-02-29 | 2026-06-12 |
| Weights | Proprietary | Open |
| Context window | — | 262K |
| Max output | — | 262K |
| Input $ / M tokens | — | $0.95 |
| Output $ / M tokens | — | $4 |
| Results tracked | 46 | 19 |
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Category by category
Coding Kimi K2.7 Code leads
Claude 3 Opus: 32.9 (#267), Kimi K2.7 Code: 42.9 (#95)
| Benchmark | Claude 3 Opus | Kimi K2.7 Code |
|---|---|---|
| WeirdML | 19.2% | 54.1% |
| DeepSWE | — | 30.5% |
| FrontierCode | — | 30.1% |
| LMArena WebDev | — | 1473 |
| SciCode | — | 47.5% |
| BigCodeBench Instruct | 45.5% | — |
| LiveBench Coding | 38.6% | — |
| LMArena Coding | 1264 | — |
| BigCodeBench Complete | 57.4% | — |
| ALE-Bench | — | 886.23 |
| HumanEval+ | 77.4% | — |
| MBPP+ | 73.3% | — |
Agentic & Tool Use Too close to call
Claude 3 Opus: 24.6 (#116), Kimi K2.7 Code: 24.0 (#122)
| Benchmark | Claude 3 Opus | Kimi K2.7 Code |
|---|---|---|
| APEX-Agents | — | 37.6% |
| Cybench | 10% | — |
| GBAEval | — | 0.9% |
| METR Time Horizons | 29.5% | — |
| Vending-Bench 2 | — | 5,083 |
Reasoning Kimi K2.7 Code leads
Claude 3 Opus: 14.6 (#324), Kimi K2.7 Code: 39.0 (#61)
| Benchmark | Claude 3 Opus | Kimi K2.7 Code |
|---|---|---|
| SimpleBench | 23.5% | 57.9% |
| Chess Puzzles | 5% | 21% |
| Epoch Capabilities Index | 126.91 | 149.97 |
| CritPt | — | 10% |
| EnigmaEval | 0.8% | — |
| LiveBench Reasoning | 40.6% | — |
| LMArena Hard Prompts | 1245 | — |
| DTBench | 61.6% | — |
| LiveBench Data Analysis | 57.9% | — |
| LMCA | 17% | — |
| Surface Evolver Bench | — | 48.8% |
| ForecastBench | 58.4 | — |
| LiveBench | 49.2% | — |
| WinoGrande | 88.5% | — |
Math Kimi K2.7 Code leads
Claude 3 Opus: 14.8 (#299), Kimi K2.7 Code: 52.9 (#48)
| Benchmark | Claude 3 Opus | Kimi K2.7 Code |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 4.7% | 95.6% |
| FrontierMath (Tiers 1-3) | — | 54% |
| FrontierMath Tier 4 | — | 12.2% |
| LiveBench Math | 43.6% | — |
| LMArena Math | 1273 | — |
| MATH Level 5 | 37.5% | — |
Knowledge Kimi K2.7 Code leads
Claude 3 Opus: 24.5 (#267), Kimi K2.7 Code: 53.5 (#57)
| Benchmark | Claude 3 Opus | Kimi K2.7 Code |
|---|---|---|
| GPQA Diamond | 47.2% | 87.9% |
| SimpleQA Verified | 12.6% | 36.5% |
| Confabulations | 22.7% | — |
| LMArena Expert | 1223 | — |
| MMLU | 84.6% | — |
Multimodal Not comparable
Claude 3 Opus: 27.1 (#116), Kimi K2.7 Code: —
| Benchmark | Claude 3 Opus | Kimi K2.7 Code |
|---|---|---|
| LMArena Vision | 1023 | — |
Multilingual Not comparable
Claude 3 Opus: 41.4 (#207), Kimi K2.7 Code: —
| Benchmark | Claude 3 Opus | Kimi K2.7 Code |
|---|---|---|
| LMArena Non-English | 1258 | — |
| LMArena Chinese | 1248 | — |
| LMArena French | 1275 | — |
| LMArena German | 1258 | — |
| LMArena Japanese | 1204 | — |
| LMArena Korean | 1187 | — |
| LMArena Russian | 1280 | — |
| LMArena Spanish | 1246 | — |
Instruction Following Not comparable
Claude 3 Opus: 64.1 (#228), Kimi K2.7 Code: —
| Benchmark | Claude 3 Opus | Kimi K2.7 Code |
|---|---|---|
| LiveBench Instruction Following | 63.9% | — |
| LMArena Instruction Following | 1248 | — |
Long Context Not comparable
Claude 3 Opus: 38.2 (#202), Kimi K2.7 Code: —
| Benchmark | Claude 3 Opus | Kimi K2.7 Code |
|---|---|---|
| LMArena Longer Query | 1259 | — |
Writing & Preference Not comparable
Claude 3 Opus: 47.2 (#213), Kimi K2.7 Code: —
| Benchmark | Claude 3 Opus | Kimi K2.7 Code |
|---|---|---|
| LMArena Text | 1262 | — |
| LMArena Creative Writing | 1235 | — |
| LMArena Multi-Turn | 1275 | — |
| LiveBench Language | 50.4% | — |
Frequently asked questions
Is Claude 3 Opus better than Kimi K2.7 Code?
Kimi K2.7 Code is the stronger model overall, scoring 43.3 to 29.5 on the Noometry Index.
Is Claude 3 Opus or Kimi K2.7 Code better for coding?
Kimi K2.7 Code scores higher on coding benchmarks: 42.9 versus 32.9 in the Noometry coding category.
How many benchmarks do Claude 3 Opus and Kimi K2.7 Code share?
7 benchmarks have published results for both models. Claude 3 Opus has 46 scored results on Noometry and Kimi K2.7 Code has 19.