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Claude Sonnet 4.5

Anthropic

Introduction

Claude Sonnet 4.5 is an AI model developed by Anthropic. It supports Chat, Vision, Code capabilities.

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1,000,000 tokens

120 tokens/s

9000 tokens/s

Chat

Vision

Code

Input Tokens1,000,000 tokens

Output Tokens64,000 tokens

$0.003/1K input, $0.015/1K output

Release Information

Release Date2025-09-29

Versionclaude4.5

Try Claude Sonnet 4.5 with Lunabot

Claude Sonnet 4.5 - AI Model Timeline