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Free Claude Sonnet 4 alerts

Anthropic

Claude Sonnet 4 Pricing, Specs & Alternatives

Input
$3
Output
$15
per 1M tokens, in / out
Checked Nov 9, 2026platform.claude.com

Listed under additional models on Anthropic's pricing page.

Latest changes

All changes
Jun 15, 2026 Claude Sonnet 4 (claude-sonnet-4-20250514) retired; Anthropic names Claude Sonnet 5.5 as the replacementDeprecationplatform.claude.com

Questions

How much does Claude Sonnet 4 cost

Claude Sonnet 4 lists $3 per 1M input tokens and $15 per 1M output tokens, checked Nov 9, 2026 on platform.claude.com.

Who makes Claude Sonnet 4

Anthropic.

What are alternatives to Claude Sonnet 4

Claude Haiku 4.5, Claude Opus 4.1, Claude Opus 4.5, Claude Opus 4.6, Claude Opus 4.7.

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