Model
Step 3.5 Flash 2603
StepFun flash model for efficient multimodal reasoning, coding, and tool use
1 providersreleased knowledge cutoff 2025-01open weights
$0.1
best input /M · StepFun (China)
$0.3
best output /M
256K
context window
256K
max output
Compare providers (sorted by listed input price)
| Provider | Input /M | Output /M | Cache read /M | Cache write /M | Context | Capabilities | Status | Updated |
|---|---|---|---|---|---|---|---|---|
| StepFun (China) step-3.5-flash-2603 | $0.1 | $0.3 | $0.02 | — | 256K | reasoningtoolsno structuredno vision | Apr 2, 2026 |
Price badge
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Benchmarks
- Artificial Analysis Coding Index ↗(index)report ↗34.6
- SciCode(percent correct)report ↗38.5
- Terminal-Bench Hard ↗(success rate)report ↗32.6
Weights
Prices are per million tokens (USD). “—” means the provider does not publicly list a price for this model. Data from models.dev; verify with the provider before purchasing.