Anthropic Claude Sonnet 4.5 Comparison: Pricing, Specs | AI Registry

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Created by

anthropic

ReleasedSep 29, 2025

Claude Sonnet 4.5 is the newest model in the Sonnet series, offering improvements and updates over Sonnet 4.

Claude Sonnet 4.5 is the newest model in the Sonnet series, offering improvements and updates over Sonnet 4.

Limits

Context Length1M

Max Output Tokens64K

Pricing

Pricing (Input)$3.00/M

Pricing (Output)$15.00/M

Caching

Input Modalities

Text

Image

PDF

Audio

Output Modalities

Text

Image

Audio

Features

Reasoning

Tools

Temperature

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