# Step 3.7 Flash vs GLM-5.3 - AI Model Comparison

- Page: https://opencode.ai/data/compare/stepfun/step-3-7-flash/zhipuai/glm-5-3
- Updated: 2026-10-11T07:52:40.000Z

|  | Step 3.7 Flash | GLM-5.3 |
| --- | --- | --- |
| Lab | StepFun | Zhipu |
| Context window | 256K | 1M |
| Max output | 256K | 131K |
| Input modalities | text, image, video | text |
| Reasoning | Yes | Yes |
| Tool calling | Yes | Yes |
| Open weights | Yes | Yes |
| Release date | 2026-05-29 | 2026-08-14 |
| Input price per 1M tokens | $0.18 | $1.40 |
| Output price per 1M tokens | $1.11 | $4.40 |
| Cached input price per 1M tokens | $0.04 | $0.26 |
| OpenCode tokens: past 2 months | - | 1.4T |
| Share of all tokens | - | 0.1% |
| Rank by tokens last week | - | #25 |
| Unique users | - | 335K |
| Weekly retention | - | 52.3% |

Model pages: [Step 3.7 Flash](https://opencode.ai/data/stepfun/step-3-7-flash.md), [GLM-5.3](https://opencode.ai/data/zhipuai/glm-5-3.md)

## Methodology

- Updates: Aggregated every hour. Days and weeks use UTC.
- Tokens: Input, output, reasoning, and cached tokens for each request.
- Users and sessions: Approximate counts of distinct users and OpenCode sessions.
- Cost: Session cost is the average cost per OpenCode session. Token prices are list prices from the OpenCode model catalog.
- Retention: The share of a model's users in one week who use it again the next week.
- Citation: Cite OpenCode Data (opencode.ai/data) with the update time shown at the top of the page.