Step 5 Preview

Kilo Gateway · stepfun/step-5-preview

Capabilities

Tool CallYes

ReasoningYes

Structured OutputYes

Temperature ControlYes

AttachmentsYes

Open WeightsYes

Input

textimagevideo

Output

text

Input$1.00

Output$2.70

Cache Read$0.10

Direct installation coming soon — March 2026

ProviderKilo Gateway

Model IDstepfun/step-5-preview

Release Date2026-09-16

Last Updated2026-09-20

Context1.0M

Max Input1.0M

Max Output

@ai-sdk/openai-compatible