# Claude Platform Claude Platform release notes — June 30, 2026

- Product: Claude Platform (https://whatsnew.fyi/product/claude-platform)
- Vendor: Anthropic
- Date: 2026-06-30
- Original notes: https://platform.claude.com/docs/en/release-notes/overview#june-30-2026
- Permalink: https://whatsnew.fyi/product/claude-platform/releases/2026-06-30-claude-platform-release-notes-june-30-2026

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Reuse: the summaries, labels and curation here are © What's New. Quote freely with attribution and a link back; wholesale republication of the corpus is not permitted — terms: https://whatsnew.fyi/terms. The vendors' own release notes remain their publishers'.

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We've launched Claude Sonnet 5 ( claude-sonnet-5 ), the next generation of our Sonnet model family, at introductory pricing of $2 / $10 per MTok (made the standard price on August 10, 2026). Claude So…

- **added** — Launched Claude Sonnet 5 (claude-sonnet-5) model