Step 5 Preview API
About
Integrate multimodal vision capabilities using Step 5 Preview, designed to process both text and images seamlessly. This model delivers cost-effective pricing at $1.00/1M input and $2.70/1M output tokens. Access Step 5 Preview via the Vercel AI Gateway API with up to 1.0M output tokens.
Capabilities
Input Modalities
textimage
Output Modalities
text
Reasoning
No
Structured Output
Yes
Tool Use
No
WeightsClosed
Temperature
Fixed
Attachment
Supported
Limits
Context Window
1.0M
Tokens
Input Limit
1.0M
Tokens
Max Output
1.0M
Tokens
Pricing
Standard (per 1M tokens)
Input
$1.00
Output
$2.70
Caching (per 1M tokens)
Read
$0.10
Frequently Asked Questions
Step 5 Preview by Vercel AI Gateway costs $1.00 per 1M input tokens and $2.70 per 1M output tokens. Cached reads cost $0.10 per 1M tokens.
Model Details
ID
stepfun/step-5-preview
Provider
Vercel AI GatewayFamily
step
Release Date
Sep 16, 2026
Knowledge Cutoff
N/A
API Integration