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Cortecs

Claude 4.5 Sonnet API

Cortecs
About

Build advanced reasoning agents with Claude 4.5 Sonnet, a specialized AI model optimized for complex logic and chain-of-thought tasks. This model delivers cost-effective pricing at $3.26/1M input and $16.30/1M output tokens, native tool calling support. Access Claude 4.5 Sonnet via the Cortecs API with up to 200K 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
200K

Tokens

Pricing

Standard (per 1M tokens)

Input
$3.26
Output
$16.30
Frequently Asked Questions

Claude 4.5 Sonnet by Cortecs costs $3.26 per 1M input tokens and $16.30 per 1M output tokens.

Model Details
ID
claude-4-5-sonnet
Provider
Cortecs
Family
claude-sonnet
Release Date
Sep 29, 2025
Knowledge Cutoff
Jul 31, 2025
API Integration
NPM Package
@ai-sdk/openai-compatible
Environment Variables
CORTECS_API_KEY
API Base URL
https://api.cortecs.ai/v1
Documentation