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StepFun (China)

Step 2 (16K) API

StepFun (China)
About

Step 2 (16K) is a high-performance LLM available via the StepFun (China) API, ideal for scalable text generation and natural language processing. This model delivers cost-effective pricing at $5.21/1M input and $16.44/1M output tokens, native tool calling support. Access Step 2 (16K) via the StepFun (China) API with up to 8K output tokens.

Capabilities

Input Modalities

text

Output Modalities

text
Reasoning
No
Structured Output
No
Tool Use
Yes
WeightsClosed
Temperature
Adjustable
Attachment
Not Supported
Limits
Context Window
16K

Tokens

Input Limit
16K

Tokens

Max Output
8K

Tokens

Pricing

Standard (per 1M tokens)

Input
$5.21
Output
$16.44

Caching (per 1M tokens)

Read
$1.04
Frequently Asked Questions

Step 2 (16K) by StepFun (China) costs $5.21 per 1M input tokens and $16.44 per 1M output tokens. Cached reads cost $1.04 per 1M tokens.

Model Details
ID
step-2-16k
Provider
StepFun (China)
Family
Release Date
Jan 1, 2025
Knowledge Cutoff
Jun 1, 2024
API Integration
NPM Package
@ai-sdk/openai-compatible
Environment Variables
STEPFUN_API_KEY
API Base URL
https://api.stepfun.com/v1
Documentation