BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Last Baseline//Retirements//EN
X-WR-CALNAME:LLM model retirements
BEGIN:VEVENT
UID:claude-sonnet-4-5-2026-11-30@lastbaseline
DTSTAMP:20261113T000000Z
DTSTART;VALUE=DATE:20261130
DTEND;VALUE=DATE:20261201
SUMMARY:Claude Sonnet 4.5 API shutdown (Anthropic)
DESCRIPTION:claude-sonnet-4-5-20250929 removed from the API. Listed replacement: claude-sonnet-5-5. https://lastbaseline.pages.dev/retiring/claude-sonnet-4-5/
END:VEVENT
BEGIN:VEVENT
UID:gpt-5-2026-12-11@lastbaseline
DTSTAMP:20261113T000000Z
DTSTART;VALUE=DATE:20261211
DTEND;VALUE=DATE:20261212
SUMMARY:GPT-5 API shutdown (OpenAI)
DESCRIPTION:gpt-5, gpt-5-2025-08-07 removed from the API. Listed replacement: gpt-6.1-sol. https://lastbaseline.pages.dev/retiring/gpt-5/
END:VEVENT
BEGIN:VEVENT
UID:gpt-5-mini-2026-12-11@lastbaseline
DTSTAMP:20261113T000000Z
DTSTART;VALUE=DATE:20261211
DTEND;VALUE=DATE:20261212
SUMMARY:GPT-5 mini API shutdown (OpenAI)
DESCRIPTION:gpt-5-mini, gpt-5-mini-2025-08-07 removed from the API. Listed replacement: gpt-6.1-terra. https://lastbaseline.pages.dev/retiring/gpt-5-mini/
END:VEVENT
BEGIN:VEVENT
UID:gpt-5-nano-2026-12-11@lastbaseline
DTSTAMP:20261113T000000Z
DTSTART;VALUE=DATE:20261211
DTEND;VALUE=DATE:20261212
SUMMARY:GPT-5 nano API shutdown (OpenAI)
DESCRIPTION:gpt-5-nano, gpt-5-nano-2025-08-07 removed from the API. Listed replacement: gpt-6-luna. https://lastbaseline.pages.dev/retiring/gpt-5-nano/
END:VEVENT
BEGIN:VEVENT
UID:gpt-5-pro-2026-12-11@lastbaseline
DTSTAMP:20261113T000000Z
DTSTART;VALUE=DATE:20261211
DTEND;VALUE=DATE:20261212
SUMMARY:GPT-5 pro API shutdown (OpenAI)
DESCRIPTION:gpt-5-pro, gpt-5-pro-2025-10-06 removed from the API. Listed replacement: gpt-6.1-sol. https://lastbaseline.pages.dev/retiring/gpt-5-pro/
END:VEVENT
BEGIN:VEVENT
UID:o3-2026-12-11@lastbaseline
DTSTAMP:20261113T000000Z
DTSTART;VALUE=DATE:20261211
DTEND;VALUE=DATE:20261212
SUMMARY:o3 API shutdown (OpenAI)
DESCRIPTION:o3, o3-2025-04-16 removed from the API. Listed replacement: gpt-6.1-sol. https://lastbaseline.pages.dev/retiring/o3/
END:VEVENT
BEGIN:VEVENT
UID:o3-pro-2026-12-11@lastbaseline
DTSTAMP:20261113T000000Z
DTSTART;VALUE=DATE:20261211
DTEND;VALUE=DATE:20261212
SUMMARY:o3-pro API shutdown (OpenAI)
DESCRIPTION:o3-pro, o3-pro-2025-06-10 removed from the API. Listed replacement: gpt-6.1-sol. https://lastbaseline.pages.dev/retiring/o3-pro/
END:VEVENT
BEGIN:VEVENT
UID:gpt-4o-2027-01-14@lastbaseline
DTSTAMP:20261113T000000Z
DTSTART;VALUE=DATE:20270114
DTEND;VALUE=DATE:20270115
SUMMARY:GPT-4o API shutdown (OpenAI)
DESCRIPTION:gpt-4o-2024-08-06, gpt-4o-2024-11-20 removed from the API. Listed replacement: gpt-6-luna. https://lastbaseline.pages.dev/retiring/gpt-4o/
END:VEVENT
BEGIN:VEVENT
UID:gpt-4o-mini-2027-01-14@lastbaseline
DTSTAMP:20261113T000000Z
DTSTART;VALUE=DATE:20270114
DTEND;VALUE=DATE:20270115
SUMMARY:GPT-4o mini API shutdown (OpenAI)
DESCRIPTION:gpt-4o-mini-2024-07-18 removed from the API. Listed replacement: gpt-6-luna. https://lastbaseline.pages.dev/retiring/gpt-4o-mini/
END:VEVENT
BEGIN:VEVENT
UID:gpt-4-1-2027-01-14@lastbaseline
DTSTAMP:20261113T000000Z
DTSTART;VALUE=DATE:20270114
DTEND;VALUE=DATE:20270115
SUMMARY:GPT-4.1 API shutdown (OpenAI)
DESCRIPTION:gpt-4.1-2025-04-14 removed from the API. Listed replacement: gpt-6-luna. https://lastbaseline.pages.dev/retiring/gpt-4-1/
END:VEVENT
BEGIN:VEVENT
UID:gpt-4-1-mini-2027-01-14@lastbaseline
DTSTAMP:20261113T000000Z
DTSTART;VALUE=DATE:20270114
DTEND;VALUE=DATE:20270115
SUMMARY:GPT-4.1 mini API shutdown (OpenAI)
DESCRIPTION:gpt-4.1-mini-2025-04-14 removed from the API. Listed replacement: gpt-6-luna. https://lastbaseline.pages.dev/retiring/gpt-4-1-mini/
END:VEVENT
END:VCALENDAR