ModelsStep 3.5 Flash
Step 3.5 Flash
stepfun-ai/Step-3.5-FlashEngineered to deliver frontier reasoning and agentic capabilities with exceptional efficiency.
ThinkingToolsRAG
CreativeGeneralConversational
Context
16K
Speed
Fast
Capabilities
Chat Completions
VisionNo
ThinkingYes
ToolsYes
InternetNo
RAGYes
InputText
OutputText
Parameters
| Parameter | Values | Recommended | |
|---|---|---|---|
| Temperature | min0 | max1 | 0.8 |
| Top P | min0 | max1 | 0.9 |
| Top K | min1 | max100 | 40 |
| Freq. Penalty | min-2 | max2 | 0 |
| Pres. Penalty | min-2 | max2 | 0 |
| Rep. Penalty | min1 | max2 | 1 |
| Max Tokens | min1 | max1024 | 512 |
Credit Cost per Plan
Free4 cr/req
≈ 125 req/month
Basic2 cr/req
≈ 500 req/month
Starter2 cr/req
≈ 1,000 req/month
Pro2 cr/req
≈ 1,500 req/month
Pro+2 cr/req
≈ 2,500 req/month
Max2 cr/req
≈ 6,000 req/month
Max+2 cr/req
≈ 12,500 req/month
Ultimate2 cr/req
≈ 25,000 req/month
Context Window
16K
16,384 tokens