# GLM-4.6V vs Step 3.5 Flash

> GLM-4.6V and Step 3.5 Flash score almost the same on the Noometry Index (41.3 vs 42.3), so choose on price, context window or the category you care about most.

- Canonical page: https://noometry.com/compare/glm-4-6v-vs-step-3-5-flash
- Last updated: 2026-10-11
- Shared benchmarks: 11

## Summary

- They share 11 benchmarks with published results for both. GLM-4.6V scores higher in 1 category and Step 3.5 Flash in 6 categories; 7 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where GLM-4.6V leads 27.6 to 22.2.
- Step 3.5 Flash is cheaper at $0.10 / $0.30 per million input/output tokens, against $0.30 / $0.90 for GLM-4.6V.
- Step 3.5 Flash accepts more context: 256K tokens versus 128K.

## Snapshot

| | GLM-4.6V | Step 3.5 Flash |
|---|---|---|
| Provider | Z.ai (Zhipu) | StepFun |
| Noometry Index | 41.3 | 42.3 |
| Rank | 137 | 116 |
| Context | 128K | 256K |
| Input $/M | $0.30 | $0.10 |
| Output $/M | $0.90 | $0.30 |
| Weights | Open | Open |

## Coding

- GLM-4.6V: 40.9 (#128)
- Step 3.5 Flash: 42.4 (#105)

| Benchmark | GLM-4.6V | Step 3.5 Flash |
|---|---|---|
| LMArena Coding | 1390 | 1436 |

## Reasoning

- GLM-4.6V: 27.6 (#115)
- Step 3.5 Flash: 22.2 (#202)

| Benchmark | GLM-4.6V | Step 3.5 Flash |
|---|---|---|
| LMArena Hard Prompts | 1368 | 1411 |
| NYT Connections (extended) | — | 28.4% |

## Math

- GLM-4.6V: —
- Step 3.5 Flash: 42.6 (#84)

| Benchmark | GLM-4.6V | Step 3.5 Flash |
|---|---|---|
| MathArena Final-Answer Competitions | — | 66.8% |
| LMArena Math | — | 1408 |

## Knowledge

- GLM-4.6V: 38.0 (#149)
- Step 3.5 Flash: 39.6 (#132)

| Benchmark | GLM-4.6V | Step 3.5 Flash |
|---|---|---|
| LMArena Expert | 1371 | 1421 |

## Multimodal

- GLM-4.6V: 34.8 (#90)
- Step 3.5 Flash: —

| Benchmark | GLM-4.6V | Step 3.5 Flash |
|---|---|---|
| LMArena Vision | 1164 | — |

## Multilingual

- GLM-4.6V: 48.6 (#141)
- Step 3.5 Flash: 50.5 (#119)

| Benchmark | GLM-4.6V | Step 3.5 Flash |
|---|---|---|
| LMArena Non-English | 1359 | 1385 |
| LMArena Chinese | 1425 | 1447 |
| LMArena Russian | 1340 | 1385 |
| LMArena French | — | 1421 |
| LMArena German | — | 1405 |
| LMArena Japanese | — | 1354 |
| LMArena Korean | — | 1352 |
| LMArena Spanish | — | 1419 |

## Instruction Following

- GLM-4.6V: 71.4 (#151)
- Step 3.5 Flash: 73.1 (#124)

| Benchmark | GLM-4.6V | Step 3.5 Flash |
|---|---|---|
| LMArena Instruction Following | 1352 | 1385 |

## Long Context

- GLM-4.6V: 41.3 (#143)
- Step 3.5 Flash: 42.8 (#117)

| Benchmark | GLM-4.6V | Step 3.5 Flash |
|---|---|---|
| LMArena Longer Query | 1358 | 1402 |

## Writing & Preference

- GLM-4.6V: 56.6 (#137)
- Step 3.5 Flash: 58.8 (#113)

| Benchmark | GLM-4.6V | Step 3.5 Flash |
|---|---|---|
| LMArena Text | 1377 | 1403 |
| LMArena Creative Writing | 1347 | 1357 |
| LMArena Multi-Turn | 1360 | 1405 |

## FAQ

### Is GLM-4.6V better than Step 3.5 Flash?

GLM-4.6V and Step 3.5 Flash score almost the same on the Noometry Index (41.3 vs 42.3), so choose on price, context window or the category you care about most.

### Which is cheaper, GLM-4.6V or Step 3.5 Flash?

Step 3.5 Flash is cheaper. It lists at $0.10 per million input tokens and $0.30 per million output tokens; GLM-4.6V lists at $0.30 and $0.90.

### Is GLM-4.6V or Step 3.5 Flash better for coding?

Step 3.5 Flash scores higher on coding benchmarks: 42.4 versus 40.9 in the Noometry coding category.

### Which has the bigger context window?

Step 3.5 Flash does, with 256K tokens against 128K.

### How many benchmarks do GLM-4.6V and Step 3.5 Flash share?

11 benchmarks have published results for both models. GLM-4.6V has 12 scored results on Noometry and Step 3.5 Flash has 19.