Claude Opus 4.1 retires on August 5, 2026

Production requests pinned to claude-opus-4-1-20250805 will fail once Anthropic retires the model.

Recommended action: Update the model ID to claude-opus-4-8, then rerun prompt, tool-use, latency, and output-quality tests before August 5.

Affected: claude-opus-4-1-20250805, model, model retirement, Claude Opus 4.1