Qwen3 4B API
About
Build advanced reasoning agents with Qwen3 4B, a specialized AI model optimized for complex logic and chain-of-thought tasks. This model delivers cost-effective pricing at $0.03/1M input and $0.03/1M output tokens, open weights architecture. Access Qwen3 4B via the Novita AI API with up to 20K output tokens.
Capabilities
Input Modalities
text
Output Modalities
text
Reasoning
Yes
Structured Output
No
Tool Use
No
WeightsOpen
Temperature
Adjustable
Attachment
Not Supported
Limits
Context Window
128K
Tokens
Input Limit
128K
Tokens
Max Output
20K
Tokens
Pricing
Standard (per 1M tokens)
Input
$0.03
Output
$0.03
Frequently Asked Questions
Qwen3 4B by Novita AI costs $0.03 per 1M input tokens and $0.03 per 1M output tokens.
Model Details
API Integration
NPM Package
@ai-sdk/openai-compatible
Environment Variables
NOVITA_API_KEY
API Base URL
https://api.novita.ai/openai