BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Since.dev//Retirement calendar//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
X-WR-CALNAME:Since.dev retirement calendar
X-WR-CALDESC:End of life dates for runtimes\, languages\, frameworks\, data
 bases\, infrastructure\, operating systems and software are from endoflife
 .date\, Copyright 2020 endoflife.date contributors\, MIT License. Some dat
 es come from documentation under CC BY 4.0. Each entry names its source an
 d license.
REFRESH-INTERVAL;VALUE=DURATION:P1D
X-PUBLISHED-TTL:P1D
BEGIN:VEVENT
UID:102e61d0-e974-4721-a710-37a51dcbaf9d@since.dev
DTSTAMP:20261102T060636Z
DTSTART;VALUE=DATE:20270131
DTEND;VALUE=DATE:20270201
SUMMARY:grok-4 on Microsoft Foundry retires on 2027-01-31
DESCRIPTION:Foundry lists its lifecycle stage as GA.\nSource: https://learn
 .microsoft.com/en-us/azure/foundry/openai/concepts/model-retirement-schedu
 le\nPage: https://since.dev/calendar/xai/grok-4/azure
CATEGORIES:AI model
URL:https://since.dev/calendar/xai/grok-4/azure
STATUS:CONFIRMED
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:55b8438d-6704-4724-8c47-3a01b666eb5f@since.dev
DTSTAMP:20261102T060636Z
DTSTART;VALUE=DATE:20270131
DTEND;VALUE=DATE:20270201
SUMMARY:grok-code-fast-1 on Microsoft Foundry retires on 2027-01-31
DESCRIPTION:Foundry lists its lifecycle stage as GA.\nSource: https://learn
 .microsoft.com/en-us/azure/foundry/openai/concepts/model-retirement-schedu
 le\nPage: https://since.dev/calendar/xai/grok-code-fast-1/azure
CATEGORIES:AI model
URL:https://since.dev/calendar/xai/grok-code-fast-1/azure
STATUS:CONFIRMED
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:7042fa89-30db-419b-bbb1-53b71c19cf4a@since.dev
DTSTAMP:20261102T060636Z
DTSTART;VALUE=DATE:20270406
DTEND;VALUE=DATE:20270407
SUMMARY:grok-4-20-non-reasoning on Microsoft Foundry retires on 2027-04-06
DESCRIPTION:Foundry lists its lifecycle stage as Preview.\nSource: https://
 learn.microsoft.com/en-us/azure/foundry/openai/concepts/model-retirement-s
 chedule\nPage: https://since.dev/calendar/xai/grok-4-20-non-reasoning/azur
 e
CATEGORIES:AI model
URL:https://since.dev/calendar/xai/grok-4-20-non-reasoning/azure
STATUS:CONFIRMED
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:9fa0dc8c-cd83-44e4-821e-8dd1cd1c71bf@since.dev
DTSTAMP:20261102T060636Z
DTSTART;VALUE=DATE:20270406
DTEND;VALUE=DATE:20270407
SUMMARY:grok-4-20-reasoning on Microsoft Foundry retires on 2027-04-06
DESCRIPTION:Foundry lists its lifecycle stage as Preview.\nSource: https://
 learn.microsoft.com/en-us/azure/foundry/openai/concepts/model-retirement-s
 chedule\nPage: https://since.dev/calendar/xai/grok-4-20-reasoning/azure
CATEGORIES:AI model
URL:https://since.dev/calendar/xai/grok-4-20-reasoning/azure
STATUS:CONFIRMED
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:50175fd8-44b7-4511-b64d-8136a9cc189f@since.dev
DTSTAMP:20261102T060636Z
DTSTART;VALUE=DATE:20270519
DTEND;VALUE=DATE:20270520
SUMMARY:grok-4-1-fast-non-reasoning on Microsoft Foundry retires on 2027-05
 -19
DESCRIPTION:Foundry lists its lifecycle stage as GA.\nSource: https://learn
 .microsoft.com/en-us/azure/foundry/openai/concepts/model-retirement-schedu
 le\nPage: https://since.dev/calendar/xai/grok-4-1-fast-non-reasoning/azure
CATEGORIES:AI model
URL:https://since.dev/calendar/xai/grok-4-1-fast-non-reasoning/azure
STATUS:CONFIRMED
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:6c44a75a-9f43-4b67-922a-0ca4fd267383@since.dev
DTSTAMP:20261102T060636Z
DTSTART;VALUE=DATE:20270519
DTEND;VALUE=DATE:20270520
SUMMARY:grok-4-1-fast-reasoning on Microsoft Foundry retires on 2027-05-19
DESCRIPTION:Foundry lists its lifecycle stage as GA.\nSource: https://learn
 .microsoft.com/en-us/azure/foundry/openai/concepts/model-retirement-schedu
 le\nPage: https://since.dev/calendar/xai/grok-4-1-fast-reasoning/azure
CATEGORIES:AI model
URL:https://since.dev/calendar/xai/grok-4-1-fast-reasoning/azure
STATUS:CONFIRMED
TRANSP:TRANSPARENT
END:VEVENT
END:VCALENDAR