Models / StepFun / Step 3.5 Flash 2603
StepFun
Step 3.5 Flash 2603
StepFun flash model for efficient multimodal reasoning, coding, and tool use
$0.10 in · $0.30 out
per 1M tokens · first-party price. Reference price from StepFun, the lab's own listing.
- Context
- 256,000
- Max output
- 256,000
- Cache read
- $0.02
- Cache write
- —
- Reasoning
- Yes
- Tool calls
- Yes
- Structured output
- Unknown
- Vision
- No
- Open weights
- Yes
- License
- —
- Released
- Apr 2, 2026
- Updated in source
- Apr 2, 2026
- Knowledge
- 2025-01
- Providers
- 5
Providers
| Provider | Input | Output | Cache read | Cache write | Status |
|---|---|---|---|---|---|
| EmpirioLabs AI | $0.10 | $0.30 | $0.02 | — | — |
| NanoGPT | $0.10 | $0.30 | $0.05 | — | — |
| StepFunreference | $0.10 | $0.30 | $0.02 | — | — |
| StepFun Step Plan | — | — | — | — | — |
| StepFun Step Plan | — | — | — | — | — |