Step 3.5 Flash 2603
nano-gpt / stepfun-ai/step-3.5-flash-2603
Input price
$0.1
per 1M tokens
Output price
$0.3
per 1M tokens
Context
262K
tokens
Capabilities
✓ Reasoning— Tool calls— Image input✓ Open weights
| cache read | $0.05 |
| Context | 262,144 tokens |
| max output | 65,536 tokens |
| Released | 2026-04-02 |
| Data updated | 2026-04-02 |
Prices are official/data-source rates (per 1M tokens), not what relays actually charge — relay prices vary with discounts and group multipliers. See methodology.