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Venice AI

Claude Opus 4.5 API

Venice AI
About

Build advanced reasoning agents with Claude Opus 4.5, a specialized AI model optimized for complex logic and chain-of-thought tasks. This model delivers cost-effective pricing at $6.00/1M input and $30.00/1M output tokens, native tool calling support. Access Claude Opus 4.5 via the Venice AI API with up to 50K output tokens.

Capabilities

Input Modalities

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Output Modalities

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Reasoning
Yes
Structured Output
Yes
Tool Use
Yes
WeightsClosed
Temperature
Adjustable
Attachment
Supported
Limits
Context Window
198K

Tokens

Input Limit
198K

Tokens

Max Output
50K

Tokens

Pricing

Standard (per 1M tokens)

Input
$6.00
Output
$30.00

Caching (per 1M tokens)

Read
$0.60
Write
$7.50
Frequently Asked Questions

Claude Opus 4.5 by Venice AI costs $6.00 per 1M input tokens and $30.00 per 1M output tokens. Cached reads cost $0.60 per 1M tokens. Cache writes cost $7.50 per 1M tokens.

Model Details
ID
claude-opus-45
Provider
Venice AI
Family
claude-opus
Release Date
Dec 6, 2025
Knowledge Cutoff
Mar 1, 2025
API Integration
NPM Package
venice-ai-sdk-provider
Environment Variables
VENICE_API_KEY
Documentation