Model comparison
Kimi K2.7 Code vs Step 3
Kimi K2.7 Code is the stronger model overall, scoring 43.0 to 39.9 on the Noometry Index.
Last verified . 0 shared benchmarks.
StepFunSummary
- The widest gap is in math, where Kimi K2.7 Code leads 52.6 to 34.9.
Side by side
| Kimi K2.7 Code | Step 3 | |
|---|---|---|
| Provider | Moonshot AI | StepFun |
| Noometry Index | 43.0 | 39.9 |
| Released | 2026-06-12 | — |
| Weights | Open | Open |
| Context window | 262K | — |
| Max output | 262K | — |
| Input $ / M tokens | $0.95 | — |
| Output $ / M tokens | $4 | — |
| Results tracked | 19 | 17 |
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Category by category
Coding Kimi K2.7 Code leads
Kimi K2.7 Code: 42.4 (#92), Step 3: 39.5 (#144)
| Benchmark | Kimi K2.7 Code | Step 3 |
|---|---|---|
| DeepSWE | 30.5% | — |
| FrontierCode | 30.1% | — |
| LMArena WebDev | 1473 | — |
| SciCode | 47.5% | — |
| WeirdML | 54.1% | — |
| LMArena Coding | — | 1367 |
| ALE-Bench | 886.23 | — |
Agentic & Tool Use Not comparable
Kimi K2.7 Code: 23.9 (#115), Step 3: —
| Benchmark | Kimi K2.7 Code | Step 3 |
|---|---|---|
| APEX-Agents | 37.6% | — |
| GBAEval | 0.9% | — |
| Vending-Bench 2 | 5,083 | — |
Reasoning Kimi K2.7 Code leads
Kimi K2.7 Code: 38.2 (#56), Step 3: 27.6 (#102)
| Benchmark | Kimi K2.7 Code | Step 3 |
|---|---|---|
| SimpleBench | 57.9% | — |
| Kagi LLM Benchmark | — | 62.3% |
| CritPt | 10% | — |
| Chess Puzzles | 21% | — |
| LMArena Hard Prompts | — | 1355 |
| Surface Evolver Bench | 48.8% | — |
| Epoch Capabilities Index | 150.01 | — |
Math Kimi K2.7 Code leads
Kimi K2.7 Code: 52.6 (#39), Step 3: 34.9 (#148)
| Benchmark | Kimi K2.7 Code | Step 3 |
|---|---|---|
| FrontierMath (Tiers 1-3) | 54% | — |
| FrontierMath Tier 4 | 12.2% | — |
| OTIS Mock AIME 2024-2025 | 95.6% | — |
| LMArena Math | — | 1366 |
Knowledge Kimi K2.7 Code leads
Kimi K2.7 Code: 53.6 (#51), Step 3: 36.2 (#161)
| Benchmark | Kimi K2.7 Code | Step 3 |
|---|---|---|
| GPQA Diamond | 87.9% | — |
| SimpleQA Verified | 36.5% | — |
| LMArena Expert | — | 1333 |
Multimodal Not comparable
Kimi K2.7 Code: —, Step 3: 34.9 (#81)
| Benchmark | Kimi K2.7 Code | Step 3 |
|---|---|---|
| LMArena Vision | — | 1176 |
Multilingual Not comparable
Kimi K2.7 Code: —, Step 3: 46.5 (#154)
| Benchmark | Kimi K2.7 Code | Step 3 |
|---|---|---|
| LMArena Non-English | — | 1327 |
| LMArena Chinese | — | 1396 |
| LMArena German | — | 1371 |
| LMArena Korean | — | 1271 |
| LMArena Russian | — | 1331 |
| LMArena Spanish | — | 1372 |
Instruction Following Not comparable
Kimi K2.7 Code: —, Step 3: 70.6 (#159)
| Benchmark | Kimi K2.7 Code | Step 3 |
|---|---|---|
| LMArena Instruction Following | — | 1332 |
Long Context Not comparable
Kimi K2.7 Code: —, Step 3: 40.3 (#152)
| Benchmark | Kimi K2.7 Code | Step 3 |
|---|---|---|
| LMArena Longer Query | — | 1326 |
Writing & Preference Not comparable
Kimi K2.7 Code: —, Step 3: 54.5 (#146)
| Benchmark | Kimi K2.7 Code | Step 3 |
|---|---|---|
| LMArena Text | — | 1351 |
| LMArena Creative Writing | — | 1322 |
| LMArena Multi-Turn | — | 1340 |
Frequently asked questions
Is Kimi K2.7 Code better than Step 3?
Kimi K2.7 Code is the stronger model overall, scoring 43.0 to 39.9 on the Noometry Index.
Is Kimi K2.7 Code or Step 3 better for coding?
Kimi K2.7 Code scores higher on coding benchmarks: 42.4 versus 39.5 in the Noometry coding category.
How many benchmarks do Kimi K2.7 Code and Step 3 share?
0 benchmarks have published results for both models. Kimi K2.7 Code has 19 scored results on Noometry and Step 3 has 17.