Step 3.5 Flash 2603
Step 3.5 Flash 2603 by stepfun — specifications, pricing and published benchmark scores, with community links.
| Organization | stepfun |
|---|---|
| Released | 2026-04-02 |
| Open weights | Yes |
| Context window | 256,000 tokens |
| Modality | text |
| Input price | Self-host / varies |
| Output price | Self-host / varies |
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