AI/ML API
Step 5 Preview
Canonical ID:
aimlapi/stepfun/step-5-preview
StepFun's next-generation flagship base model for coding and professional knowledge work, with native text, image, and video input and a 1M-token context window
Overview
- Provider
-
AI/ML API
- Family
- step-5-preview
- Release date
- 2026-09-16
- Last updated
- 2026-09-20
- Input modalities
- text, image, video
- Output modalities
- text
Pricing and Limits
Token pricing
- Input
- $1.3754/1M
- Output
- $3.71358/1M
- Cached input
- N/A
Context and output
- Context window
- 1,000,000
- Max output tokens
- 64,000
- Qualified ID
- aimlapi/stepfun/step-5-preview
Model Summary
Step 5 Preview is a model listing in the AI/ML API provider catalog. It is categorized under the step-5-preview family.
The model supports text, image, video modalities across input/output paths. Reported context capacity is 1,000,000. Pricing is listed at $1.3754/1M input and $3.71358/1M output.
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