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Provider Docs
Step 3.5 Flash
OpenRouter · stepfun/step-3.5-flash
Capabilities
Tool CallYes
ReasoningYes
Structured OutputNo
Temperature ControlYes
AttachmentsNo
Open WeightsYes
Modalities
Input
text
Output
text
Pricing (per 1M tokens)
Input$0.10
Output$0.30
Direct installation coming soon — March 2026
Details
ProviderOpenRouter
Model IDstepfun/step-3.5-flash
Knowledge Cutoff2025-01
Release Date2026-01-29
Last Updated2026-02-13
Limits
Context262K
Max Output66K
SDK
@openrouter/ai-sdk-provider