Claude fixes Opus 4.7 limit bug

Hot take: this is less a feature launch than a cleanup of a bad quota edge case, but it matters because long-context usage is exactly where power users feel limits the hardest.

• –Fixes an accounting bug that could make long-context Opus 4.7 usage consume subscription limits incorrectly.
• –Anthropic explicitly reset 5-hour and weekly rate limits, which suggests the issue affected active users rather than just a narrow backend path.
• –The update is operationally important for Claude Code and other long-running workflows, but it does not appear to change the model itself.
• –If you rely on Opus 4.7 for large-context work, this is the kind of backend fix that can materially improve trust in the product.