Sunday, June 7, 2026 · 1 of 5
Anthropic API model deprecations June 15
— claude-sonnet-4-0 and claude-opus-4-0 are being retired; hardcoded model strings in API calls will error after that date.
JadidJust-in AI Developments, Incidents & DeadlinesJadidJust-in AI Developments, Incidents & DeadlinesSunday, June 7, 2026 · 1 of 5
— claude-sonnet-4-0 and claude-opus-4-0 are being retired; hardcoded model strings in API calls will error after that date.