# StepFun AI Model Usage & Rankings | OpenCode Data

> StepFun models processed 512B tokens across OpenCode over the past two months, 0.1% of all usage. Step 5 Preview was the most-used StepFun model.

StepFun's Step models target fast multimodal agents, pairing visual understanding, search, coding, and tool orchestration.

- Page: https://opencode.ai/data/stepfun
- JSON: https://opencode.ai/data/stepfun.json
- Updated: 2026-10-09T04:46:40.000Z
- Tokens processed: past 2 months: 512B
- Share of all usage: 0.1%

## StepFun models

| Model | Tokens: past 2 months | Share of lab usage | Context window | Max output | Release date |
| --- | --- | --- | --- | --- | --- |
| [Step 5 Preview](https://opencode.ai/data/stepfun/step-5-preview.md) | 512B | 100% | 1M | 1M | 2026-09-16 |
| [Step 3.7 Flash](https://opencode.ai/data/stepfun/step-3-7-flash.md) | - | - | 256K | 256K | 2026-05-29 |
| [Step 3.5 Flash 2603](https://opencode.ai/data/stepfun/step-3-5-flash-2603.md) | - | - | 256K | 256K | 2026-04-02 |
| [Step 3.5 Flash](https://opencode.ai/data/stepfun/step-3-5-flash.md) | - | - | 256K | 256K | 2026-01-29 |

## Daily usage: past 2 months

| Date | Tokens | Unique users |
| --- | --- | --- |
| 2026-10-08 | 354B | 4.8K |
| 2026-10-09 | 158B | 3.9K |

## 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.