# GLM-4.5 vs Step 3.7 Flash

> GLM-4.5 is the stronger model overall, scoring 42.0 to 37.3 on the Noometry Index. Step 3.7 Flash costs 2.4× less per token, which makes it the better buy when GLM-4.5's lead doesn't matter for your workload.

- Canonical page: https://noometry.com/compare/glm-4-5-vs-step-3-7-flash
- Last updated: 2026-10-11
- Shared benchmarks: 1

## Summary

- They share 1 benchmark with published results for both. GLM-4.5 scores higher in 2 categories and Step 3.7 Flash in 1 category; 3 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where GLM-4.5 leads 28.6 to 21.6.
- Step 3.7 Flash is cheaper at $0.18 / $1.11 per million input/output tokens, against $0.60 / $2.20 for GLM-4.5.
- Step 3.7 Flash accepts more context: 256K tokens versus 131K.

## Snapshot

| | GLM-4.5 | Step 3.7 Flash |
|---|---|---|
| Provider | Z.ai (Zhipu) | StepFun |
| Noometry Index | 42.0 | 37.3 |
| Rank | 122 | 207 |
| Context | 131K | 256K |
| Input $/M | $0.60 | $0.18 |
| Output $/M | $2.20 | $1.11 |
| Weights | Open | Open |

## Coding

- GLM-4.5: 41.4 (#125)
- Step 3.7 Flash: 40.0 (#150)

| Benchmark | GLM-4.5 | Step 3.7 Flash |
|---|---|---|
| ALE-Bench | 344.82 | 694.12 |
| SWE-bench Verified (bash only) | 54.2% | — |
| SciCode | — | 40% |
| WeirdML | 40.6% | — |
| LMArena Coding | 1434 | — |
| AlgoTune | 1.52 | — |

## Reasoning

- GLM-4.5: 28.6 (#100)
- Step 3.7 Flash: 21.6 (#219)

| Benchmark | GLM-4.5 | Step 3.7 Flash |
|---|---|---|
| Kagi LLM Benchmark | 57.9% | — |
| NYT Connections (extended) | — | 39.7% |
| CritPt | — | 2.3% |
| LMArena Hard Prompts | 1429 | — |

## Math

- GLM-4.5: 39.0 (#116)
- Step 3.7 Flash: 42.9 (#82)

| Benchmark | GLM-4.5 | Step 3.7 Flash |
|---|---|---|
| MathArena Final-Answer Competitions | — | 68.5% |
| LMArena Math | 1427 | — |

## Knowledge

- GLM-4.5: 35.9 (#179)
- Step 3.7 Flash: —

| Benchmark | GLM-4.5 | Step 3.7 Flash |
|---|---|---|
| Humanity's Last Exam | 8.3% | — |
| Confabulations | 11.3% | — |
| LMArena Expert | 1433 | — |

## Multilingual

- GLM-4.5: 52.8 (#77)
- Step 3.7 Flash: —

| Benchmark | GLM-4.5 | Step 3.7 Flash |
|---|---|---|
| LMArena Non-English | 1417 | — |
| LMArena Chinese | 1465 | — |
| LMArena French | 1418 | — |
| LMArena German | 1407 | — |
| LMArena Japanese | 1415 | — |
| LMArena Korean | 1380 | — |
| LMArena Russian | 1414 | — |
| LMArena Spanish | 1454 | — |

## Instruction Following

- GLM-4.5: 74.1 (#104)
- Step 3.7 Flash: —

| Benchmark | GLM-4.5 | Step 3.7 Flash |
|---|---|---|
| LMArena Instruction Following | 1404 | — |

## Long Context

- GLM-4.5: 38.2 (#201)
- Step 3.7 Flash: —

| Benchmark | GLM-4.5 | Step 3.7 Flash |
|---|---|---|
| Fiction.LiveBench | 58.3% | — |
| LMArena Longer Query | 1412 | — |

## Writing & Preference

- GLM-4.5: 57.5 (#127)
- Step 3.7 Flash: —

| Benchmark | GLM-4.5 | Step 3.7 Flash |
|---|---|---|
| LMArena Text | 1430 | — |
| LMArena Creative Writing | 1395 | — |
| Short-Story Creative Writing | 73.4% | — |
| EQ-Bench Creative Writing | 1343 | — |
| LMArena Multi-Turn | 1415 | — |

## FAQ

### Is GLM-4.5 better than Step 3.7 Flash?

GLM-4.5 is the stronger model overall, scoring 42.0 to 37.3 on the Noometry Index. Step 3.7 Flash costs 2.4× less per token, which makes it the better buy when GLM-4.5's lead doesn't matter for your workload.

### Which is cheaper, GLM-4.5 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; GLM-4.5 lists at $0.60 and $2.20.

### Is GLM-4.5 or Step 3.7 Flash better for coding?

GLM-4.5 scores higher on coding benchmarks: 41.4 versus 40.0 in the Noometry coding category.

### Which has the bigger context window?

Step 3.7 Flash does, with 256K tokens against 131K.

### How many benchmarks do GLM-4.5 and Step 3.7 Flash share?

1 benchmark has published results for both models. GLM-4.5 has 27 scored results on Noometry and Step 3.7 Flash has 5.