Claude Sonnet 5 launches with a 1M token context window at $2 / $10 per MTok
Tech · Releases · Tue, June 30, 2026
Claude Sonnet 5 supports a 1M token context, 128k max output and the same tools as Sonnet 4.6 except Priority Tier. Migrating teams should note that adaptive thinking is on by default and manual extended thinking changes.
Every year
Also on Jun 30, 2026
| Date | Event | When |
|---|---|---|
| Tue, Jun 30, 2026 | AWS Summit Washington, D.C. 2026 | 3 mo ago |
| Tue, Jun 30, 2026 | New Jersey NJDPA: A5328 sensitive data sale ban takes effect | 3 mo ago |
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- 2026-09-25: added to 2026-06-30