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Qiniu

Claude 4.0 Sonnet API

Qiniu
About

Build advanced reasoning agents with Claude 4.0 Sonnet, a specialized AI model optimized for complex logic and chain-of-thought tasks. This model delivers available completely free of charge, native tool calling support. Access Claude 4.0 Sonnet via the Qiniu API with up to 64K output tokens.

Capabilities

Input Modalities

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Output Modalities

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Reasoning
Yes
Structured Output
No
Tool Use
Yes
WeightsClosed
Temperature
Adjustable
Attachment
Supported
Limits
Context Window
200K

Tokens

Input Limit
200K

Tokens

Max Output
64K

Tokens

Pricing

Standard (per 1M tokens)

Input
Free
Output
Free
Frequently Asked Questions

Claude 4.0 Sonnet by Qiniu costs Free per 1M input tokens and Free per 1M output tokens.

Model Details
ID
claude-4.0-sonnet
Provider
Qiniu
Family
Release Date
Aug 5, 2025
Knowledge Cutoff
N/A
API Integration
NPM Package
@ai-sdk/openai-compatible
Environment Variables
QINIU_API_KEY
API Base URL
https://api.qnaigc.com/v1
Documentation