Claude Platform release notes — July 24, 2026
We've launched Claude Opus 5 ( claude-opus-5 ), a step-change improvement over Claude Opus 4.8. Claude Opus 5 supports a 1M token context window (both the default and the maximum), 128k max output tok…
Added 1
- Launched Claude Opus 5 with 1M token context window support
Changed 1
- Claude Opus 5 provides improved capabilities over Claude Opus 4.8