Claude Sonnet 5: verified facts, tools, and tests

Anthropic launched Claude Sonnet 5 on June 30, 2026. This independent hub tracks the official API, pricing, practical benchmarks, and the developer workflows that matter after launch.

Launch date

June 30, 2026

Public model

Claude Sonnet 5

API ID

claude-sonnet-5

Launch pricing

$2 in / $10 out per MTok

START HERE

Claude 5 release date

What launched, when, and under which name

Claude API cost calculator

Estimate Sonnet 5 costs before and after launch pricing

Benchmark rankings

Current model leaderboard and comparison notes

Claude 5 Weekly

A concise weekly briefing for builders

STATUS

Claude Sonnet 5 - available across Claude plans and API, ID claude-sonnet-5

Introductory API pricing - $2 input / $10 output per million tokens through August 31, 2026

Standard API pricing - $3 input / $15 output per million tokens after the launch period

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NOTE

Claude 5 Hub is an independent reference site and is not affiliated with Anthropic. Claude is a trademark of Anthropic.

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