# Qwen1.5 4b Chat vs Step 3.7 Flash

> Step 3.7 Flash is the stronger model overall, scoring 36.5 to 28.3 on the Noometry Index.

- Canonical page: https://noometry.com/compare/qwen1-5-4b-chat-vs-step-3-7-flash
- Last updated: 2026-10-10
- Shared benchmarks: 0

## Summary

- The widest gap is in math, where Step 3.7 Flash leads 40.9 to 27.9.

## Snapshot

| | Qwen1.5 4b Chat | Step 3.7 Flash |
|---|---|---|
| Provider | Alibaba (Qwen) | StepFun |
| Noometry Index | 28.3 | 36.5 |
| Rank | 319 | 207 |
| Context | — | 256K |
| Input $/M | — | $0.18 |
| Output $/M | — | $1.11 |
| Weights | Open | Open |

## Coding

- Qwen1.5 4b Chat: 28.6 (#305)
- Step 3.7 Flash: 39.4 (#147)

| Benchmark | Qwen1.5 4b Chat | Step 3.7 Flash |
|---|---|---|
| SciCode | — | 40% |
| LMArena Coding | 999 | — |
| ALE-Bench | — | 694.12 |

## Reasoning

- Qwen1.5 4b Chat: 17.7 (#277)
- Step 3.7 Flash: 20.9 (#211)

| Benchmark | Qwen1.5 4b Chat | Step 3.7 Flash |
|---|---|---|
| NYT Connections (extended) | — | 39.7% |
| CritPt | — | 2.3% |
| LMArena Hard Prompts | 976 | — |

## Math

- Qwen1.5 4b Chat: 27.9 (#233)
- Step 3.7 Flash: 40.9 (#74)

| Benchmark | Qwen1.5 4b Chat | Step 3.7 Flash |
|---|---|---|
| MathArena Final-Answer Competitions | — | 68.5% |
| LMArena Math | 1026 | — |

## Knowledge

- Qwen1.5 4b Chat: 26.2 (#252)
- Step 3.7 Flash: —

| Benchmark | Qwen1.5 4b Chat | Step 3.7 Flash |
|---|---|---|
| LMArena Expert | 980 | — |

## Multilingual

- Qwen1.5 4b Chat: 24.2 (#285)
- Step 3.7 Flash: —

| Benchmark | Qwen1.5 4b Chat | Step 3.7 Flash |
|---|---|---|
| LMArena Non-English | 979 | — |
| LMArena Chinese | 1024 | — |
| LMArena German | 902 | — |
| LMArena Russian | 952 | — |

## Instruction Following

- Qwen1.5 4b Chat: 49.3 (#295)
- Step 3.7 Flash: —

| Benchmark | Qwen1.5 4b Chat | Step 3.7 Flash |
|---|---|---|
| LMArena Instruction Following | 979 | — |

## Long Context

- Qwen1.5 4b Chat: 30.1 (#285)
- Step 3.7 Flash: —

| Benchmark | Qwen1.5 4b Chat | Step 3.7 Flash |
|---|---|---|
| LMArena Longer Query | 988 | — |

## Writing & Preference

- Qwen1.5 4b Chat: 23.9 (#304)
- Step 3.7 Flash: —

| Benchmark | Qwen1.5 4b Chat | Step 3.7 Flash |
|---|---|---|
| LMArena Text | 997 | — |
| LMArena Creative Writing | 969 | — |
| LMArena Multi-Turn | 977 | — |

## FAQ

### Is Qwen1.5 4b Chat better than Step 3.7 Flash?

Step 3.7 Flash is the stronger model overall, scoring 36.5 to 28.3 on the Noometry Index.

### Is Qwen1.5 4b Chat or Step 3.7 Flash better for coding?

Step 3.7 Flash scores higher on coding benchmarks: 39.4 versus 28.6 in the Noometry coding category.

### How many benchmarks do Qwen1.5 4b Chat and Step 3.7 Flash share?

0 benchmarks have published results for both models. Qwen1.5 4b Chat has 13 scored results on Noometry and Step 3.7 Flash has 5.