claude-sonnet-4-5-20250929-thinking API
About
Build advanced reasoning agents with claude-sonnet-4-5-20250929-thinking, a specialized AI model optimized for complex logic and chain-of-thought tasks. This model delivers cost-effective pricing at $3.00/1M input and $15.00/1M output tokens, native tool calling support. Access claude-sonnet-4-5-20250929-thinking via the 302.AI API with up to 64K output tokens.
Capabilities
Input Modalities
textimagepdf
Output Modalities
text
Limits
Context Window
200K
Tokens
Input Limit
200K
Tokens
Max Output
64K
Tokens
Pricing
Standard (per 1M tokens)
Input
$3.00
Output
$15.00
Frequently Asked Questions
claude-sonnet-4-5-20250929-thinking by 302.AI costs $3.00 per 1M input tokens and $15.00 per 1M output tokens.
Model Details
ID
claude-sonnet-4-5-20250929-thinking
Provider
302.AIFamily
Release Date
Sep 30, 2025
Knowledge Cutoff
Mar 1, 2025
API Integration
NPM Package
@ai-sdk/openai-compatible
Environment Variables
302AI_API_KEY
API Base URL
https://api.302.ai/v1