The Ledger · calendar
AI Sunset Calendar
When is it actually getting killed? A date-sorted calendar of every model, endpoint, and API on the ledger with a vendor-announced retirement or shutdown date — logged with the exact source wording, and graded HIT or MISS on the day by checking whether it was really removed. 7 scheduled, 0 past their date. Rebuilt daily. The full ledger →
Next shutdown in
35days
"OpenAI to shut down gpt-5-chat-latest and o3-deep-research in the API on July 23, 2026"
"OpenAI"shuts down 2026-07-23 · Jul 23, 2026
Scheduled — counting down 7
23Jul 2026
resolves in 35d"OpenAI"
"OpenAI to shut down gpt-5-chat-latest and o3-deep-research in the API on July 23, 2026"
“"Shutdown on July 23, 2026"”
24Jul 2026
resolves in 36d"DeepSeek"
"DeepSeek to retire deepseek-chat and deepseek-reasoner endpoints on July 24, 2026"
“"Both legacy names retire July 24, 2026. After that date, requests using the old names will fail."”
5Aug 2026
openin 48 days"Anthropic"
"Anthropic to retire Claude Opus 4.1 on the Claude API on August 5, 2026"
“"On June 5, 2026, Anthropic notified developers using Claude Opus 4.1 of its upcoming retirement on the Claude API."”
23Aug 2026
openin 66 days"Google Cloud (Vertex AI) / Anthropic"
"Claude 3 Haiku to be shut down on Vertex AI on August 23, 2026"
“"Claude 3 Haiku is deprecated as of February 23, 2026 and will be shut down on August 23, 2026."”
26Aug 2026
openin 69 days"OpenAI"
"OpenAI to remove the Assistants API on August 26, 2026"
“"On August 26th, 2025, OpenAI notified developers using the Assistants API of its deprecation and removal from the API one year later, on August 26, 2026."”
24Sep 2026
openin 98 days"OpenAI (Sora shutdown schedule, via GLBGPT)"
"Sora API and app services shut down on September 24, 2026"
“"September 24, 2026: The Final Deadline for API and App Services"”
24Sep 2026
openin 98 days"OpenAI"
"OpenAI to shut down Sora 2 and the Videos API on Sept 24, 2026"
“"On March 24, 2026, OpenAI officially announced via a developer notification that the Sora-2 API sunset date is set for September 24, 2026."”