Qwen3 4B Instruct API
About
Build advanced reasoning agents with Qwen3 4B Instruct, a specialized AI model optimized for complex logic and chain-of-thought tasks. This model delivers cost-effective pricing at $0.20/1M input and $0.20/1M output tokens, native tool calling support. Access Qwen3 4B Instruct via the Pioneer API with up to 4K output tokens.
Capabilities
Input Modalities
text
Output Modalities
text
Reasoning
Yes
Structured Output
No
Tool Use
Yes
WeightsClosed
Temperature
Adjustable
Attachment
Not Supported
Limits
Context Window
262K
Tokens
Input Limit
262K
Tokens
Max Output
4K
Tokens
Pricing
Standard (per 1M tokens)
Input
$0.20
Output
$0.20
Caching (per 1M tokens)
Read
$0.20
Write
$0.20
Frequently Asked Questions
Qwen3 4B Instruct by Pioneer costs $0.20 per 1M input tokens and $0.20 per 1M output tokens. Cached reads cost $0.20 per 1M tokens. Cache writes cost $0.20 per 1M tokens.
Model Details
API Integration
NPM Package
@ai-sdk/openai-compatible
Environment Variables
PIONEER_API_KEY
API Base URL
https://api.pioneer.ai/v1