# Kimi K2.7 Code vs Step 3.7 Flash

> Kimi K2.7 Code is the stronger model overall, scoring 43.3 to 37.3 on the Noometry Index. Step 3.7 Flash costs 4.1× less per token, which makes it the better buy when Kimi K2.7 Code's lead doesn't matter for your workload.

- Canonical page: https://noometry.com/compare/kimi-k2-7-code-vs-step-3-7-flash
- Last updated: 2026-10-11
- Shared benchmarks: 3

## Summary

- They share 3 benchmarks with published results for both. Kimi K2.7 Code scores higher in 3 categories and Step 3.7 Flash in 0 categories; 3 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Kimi K2.7 Code leads 39.0 to 21.6.
- The biggest single-benchmark swing is CritPt: 10% for Kimi K2.7 Code and 2.3% for Step 3.7 Flash.
- Step 3.7 Flash is cheaper at $0.18 / $1.11 per million input/output tokens, against $0.95 / $4 for Kimi K2.7 Code.
- Kimi K2.7 Code accepts more context: 262K tokens versus 256K.

## Snapshot

| | Kimi K2.7 Code | Step 3.7 Flash |
|---|---|---|
| Provider | Moonshot AI | StepFun |
| Noometry Index | 43.3 | 37.3 |
| Rank | 94 | 207 |
| Context | 262K | 256K |
| Input $/M | $0.95 | $0.18 |
| Output $/M | $4 | $1.11 |
| Weights | Open | Open |

## Coding

- Kimi K2.7 Code: 42.9 (#95)
- Step 3.7 Flash: 40.0 (#150)

| Benchmark | Kimi K2.7 Code | Step 3.7 Flash |
|---|---|---|
| SciCode | 47.5% | 40% |
| ALE-Bench | 886.23 | 694.12 |
| DeepSWE | 30.5% | — |
| FrontierCode | 30.1% | — |
| LMArena WebDev | 1473 | — |
| WeirdML | 54.1% | — |

## Agentic & Tool Use

- Kimi K2.7 Code: 24.0 (#122)
- Step 3.7 Flash: —

| Benchmark | Kimi K2.7 Code | Step 3.7 Flash |
|---|---|---|
| APEX-Agents | 37.6% | — |
| GBAEval | 0.9% | — |
| Vending-Bench 2 | 5,083 | — |

## Reasoning

- Kimi K2.7 Code: 39.0 (#61)
- Step 3.7 Flash: 21.6 (#219)

| Benchmark | Kimi K2.7 Code | Step 3.7 Flash |
|---|---|---|
| CritPt | 10% | 2.3% |
| SimpleBench | 57.9% | — |
| NYT Connections (extended) | — | 39.7% |
| Chess Puzzles | 21% | — |
| Surface Evolver Bench | 48.8% | — |
| Epoch Capabilities Index | 149.97 | — |

## Math

- Kimi K2.7 Code: 52.9 (#48)
- Step 3.7 Flash: 42.9 (#82)

| Benchmark | Kimi K2.7 Code | Step 3.7 Flash |
|---|---|---|
| FrontierMath (Tiers 1-3) | 54% | — |
| FrontierMath Tier 4 | 12.2% | — |
| MathArena Final-Answer Competitions | — | 68.5% |
| OTIS Mock AIME 2024-2025 | 95.6% | — |

## Knowledge

- Kimi K2.7 Code: 53.5 (#57)
- Step 3.7 Flash: —

| Benchmark | Kimi K2.7 Code | Step 3.7 Flash |
|---|---|---|
| GPQA Diamond | 87.9% | — |
| SimpleQA Verified | 36.5% | — |

## FAQ

### Is Kimi K2.7 Code better than Step 3.7 Flash?

Kimi K2.7 Code is the stronger model overall, scoring 43.3 to 37.3 on the Noometry Index. Step 3.7 Flash costs 4.1× less per token, which makes it the better buy when Kimi K2.7 Code's lead doesn't matter for your workload.

### Which is cheaper, Kimi K2.7 Code or Step 3.7 Flash?

Step 3.7 Flash is cheaper. It lists at $0.18 per million input tokens and $1.11 per million output tokens; Kimi K2.7 Code lists at $0.95 and $4.

### Is Kimi K2.7 Code or Step 3.7 Flash better for coding?

Kimi K2.7 Code scores higher on coding benchmarks: 42.9 versus 40.0 in the Noometry coding category.

### Which has the bigger context window?

Kimi K2.7 Code does, with 262K tokens against 256K.

### How many benchmarks do Kimi K2.7 Code and Step 3.7 Flash share?

3 benchmarks have published results for both models. Kimi K2.7 Code has 19 scored results on Noometry and Step 3.7 Flash has 5.