BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Hugin//Provider deadline board//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
X-WR-CALNAME:Hugin — provider deadlines
X-WR-CALDESC:Every end date a provider has published about its own product 
 and this desk is tracking: promotional windows closing\, prices changing\,
  models and APIs retiring. Only published dates\; nothing inferred.
X-PUBLISHED-TTL:PT12H
REFRESH-INTERVAL;VALUE=DURATION:PT12H
BEGIN:VEVENT
UID:anthropic-cowork-doubled-limits-end@hugin.studio
DTSTAMP:20260818T153635Z
SEQUENCE:3254
DTSTART;VALUE=DATE:20260819
DTEND;VALUE=DATE:20260820
SUMMARY:Anthropic: Doubled Cowork 5-hour usage limits end and standard limi
 ts resume
DESCRIPTION:Doubled Cowork 5-hour usage limits end and standard limits resu
 me\n\nCaveat: A promotional window ending is a return to standard terms\, 
 not a reduction of anything anyone was entitled to. The launch post still 
 carries the superseded August 5 date\; the terms article is the one that g
 ets edited.\n\nAuthoritative document (Cowork promotion terms): https://su
 pport.claude.com/en/articles/15400594-claude-cowork-june-2026-usage-promot
 ion\nAnnounced in (still carries the superseded date): https://claude.com/
 blog/cowork-web-mobile\n\nTracked by Hugin: https://hugin.studio/deadlines
 \nOnly dates a provider has published about its own product appear here.
URL:https://hugin.studio/deadlines
CATEGORIES:Anthropic\,promotional-window
TRANSP:TRANSPARENT
STATUS:TENTATIVE
END:VEVENT
BEGIN:VEVENT
UID:anthropic-claude-code-weekly-boost-end@hugin.studio
DTSTAMP:20260818T153635Z
SEQUENCE:3254
DTSTART;VALUE=DATE:20260819
DTEND;VALUE=DATE:20260820
SUMMARY:Anthropic: The 50% Claude Code weekly-limit boost ends
DESCRIPTION:The 50% Claude Code weekly-limit boost ends\n\nCaveat: The stre
 tch between the first window's stated July 13 end and the July 18 renewal 
 has no provider-authored record and is carried at coverage tier only.\n\nA
 uthoritative document (Claude Code May-August 2026 promotion terms): https
 ://support.claude.com/en/articles/15910845-claude-code-may-august-2026-wee
 kly-limits-promotion\nAnnounced in: https://x.com/ClaudeDevs/status/207851
 1173759324328\n\nTracked by Hugin: https://hugin.studio/deadlines\nOnly da
 tes a provider has published about its own product appear here.
URL:https://hugin.studio/deadlines
CATEGORIES:Anthropic\,promotional-window
TRANSP:TRANSPARENT
STATUS:TENTATIVE
END:VEVENT
BEGIN:VEVENT
UID:openai-o3-chatgpt-retirement@hugin.studio
DTSTAMP:20260818T153635Z
SEQUENCE:3282
DTSTART;VALUE=DATE:20260826
DTEND;VALUE=DATE:20260827
SUMMARY:OpenAI: OpenAI o3 is retired from ChatGPT after a stated 90-day sun
 set
DESCRIPTION:OpenAI o3 is retired from ChatGPT after a stated 90-day sunset\
 n\nCaveat: A retirement notice records that access is ending. It says noth
 ing about the model's quality or about why.\n\nAuthoritative document (Mod
 el release notes): https://help.openai.com/en/articles/9624314-model-relea
 se-notes\n\nTracked by Hugin: https://hugin.studio/deadlines\nOnly dates a
  provider has published about its own product appear here.
URL:https://hugin.studio/deadlines
CATEGORIES:OpenAI\,retirement
TRANSP:TRANSPARENT
STATUS:TENTATIVE
END:VEVENT
BEGIN:VEVENT
UID:openai-assistants-api-shutdown@hugin.studio
DTSTAMP:20260818T153635Z
SEQUENCE:3282
DTSTART;VALUE=DATE:20260826
DTEND;VALUE=DATE:20260827
SUMMARY:⚑ OpenAI: The Assistants API shuts down\, replaced by the Respons
 es and Conversations APIs
DESCRIPTION:The Assistants API shuts down\, replaced by the Responses and C
 onversations APIs\n\nBEFORE THIS DATE: Migrate any Assistants API integrat
 ion to the Responses or Conversations API before the date.\n\nCaveat: An A
 PI shutdown affects integrations rather than chat users. The replacement i
 s the provider's own recommendation\, not this desk's advice.\n\nAuthorita
 tive document (API deprecations ledger): https://developers.openai.com/api
 /docs/deprecations\n\nTracked by Hugin: https://hugin.studio/deadlines\nOn
 ly dates a provider has published about its own product appear here.
URL:https://hugin.studio/deadlines
CATEGORIES:OpenAI\,retirement
TRANSP:TRANSPARENT
STATUS:TENTATIVE
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:OpenAI: Migrate any Assistants API integration to the Responses
  or Conversations API before the date.
TRIGGER:-P7D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:openai-dalle-gpt-retirement@hugin.studio
DTSTAMP:20260818T153635Z
SEQUENCE:3307
DTSTART;VALUE=DATE:20260830
DTEND;VALUE=DATE:20260831
SUMMARY:⚑ OpenAI: The official DALL·E GPT is retired in ChatGPT
DESCRIPTION:The official DALL·E GPT is retired in ChatGPT\n\nBEFORE THIS D
 ATE: Download any images you want to keep before this date — the notice 
 says so explicitly.\n\nCaveat: User-created GPTs with image generation ena
 bled are stated to be unaffected. ChatGPT Images remains available for cre
 ating and editing.\n\nAuthoritative document (ChatGPT release notes): http
 s://help.openai.com/en/articles/6825453-chatgpt-release-notes\n\nTracked b
 y Hugin: https://hugin.studio/deadlines\nOnly dates a provider has publish
 ed about its own product appear here.
URL:https://hugin.studio/deadlines
CATEGORIES:OpenAI\,retirement
TRANSP:TRANSPARENT
STATUS:TENTATIVE
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:OpenAI: Download any images you want to keep before this date 
 — the notice says so explicitly.
TRIGGER:-P7D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:anthropic-sonnet-5-intro-pricing-end@hugin.studio
DTSTAMP:20260818T153635Z
SEQUENCE:3308
DTSTART;VALUE=DATE:20260831
DTEND;VALUE=DATE:20260901
SUMMARY:Anthropic: Sonnet 5 introductory API pricing ($2/$10) ends
DESCRIPTION:Sonnet 5 introductory API pricing ($2/$10) ends\n\nCaveat: Stan
 dard pricing of $3/$15 is stated for September 1. These are the provider's
  published terms\, not a quote for any account.\n\nAuthoritative document 
 (Pricing documentation): https://platform.claude.com/docs/en/about-claude/
 pricing\n\nTracked by Hugin: https://hugin.studio/deadlines\nOnly dates a 
 provider has published about its own product appear here.
URL:https://hugin.studio/deadlines
CATEGORIES:Anthropic\,price-change
TRANSP:TRANSPARENT
STATUS:TENTATIVE
END:VEVENT
BEGIN:VEVENT
UID:openai-gpt54-codex-signin-retirement@hugin.studio
DTSTAMP:20260818T153635Z
SEQUENCE:3308
DTSTART;VALUE=DATE:20260831
DTEND;VALUE=DATE:20260901
SUMMARY:⚑ OpenAI: GPT-5.4 and GPT-5.4 mini stop being available in Codex 
 for users signed in with ChatGPT
DESCRIPTION:GPT-5.4 and GPT-5.4 mini stop being available in Codex for user
 s signed in with ChatGPT\n\nBEFORE THIS DATE: If you use those models in C
 odex via ChatGPT sign-in\, switch to a recommended replacement or authenti
 cate with an API key.\n\nCaveat: Scoped to an access path\, not the models
 : both remain on the OpenAI API and in Codex sessions authenticated with a
 n API key.\n\nAuthoritative document (Codex models doc): https://learn.cha
 tgpt.com/codex/models\nAnnounced in: https://learn.chatgpt.com/docs/change
 log\n\nTracked by Hugin: https://hugin.studio/deadlines\nOnly dates a prov
 ider has published about its own product appear here.
URL:https://hugin.studio/deadlines
CATEGORIES:OpenAI\,retirement
TRANSP:TRANSPARENT
STATUS:TENTATIVE
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:OpenAI: If you use those models in Codex via ChatGPT sign-in\, 
 switch to a recommended replacement or authenticate with an API key.
TRIGGER:-P7D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:openai-videos-api-sora2-shutdown@hugin.studio
DTSTAMP:20260818T153635Z
SEQUENCE:3152
DTSTART;VALUE=DATE:20260924
DTEND;VALUE=DATE:20260925
SUMMARY:⚑ OpenAI: The Videos API and the entire Sora 2 model family shut 
 down — with no replacement named
DESCRIPTION:The Videos API and the entire Sora 2 model family shut down —
  with no replacement named\n\nBEFORE THIS DATE: There is no migration targ
 et published for this one. If you depend on the Videos API or any sora-2 m
 odel\, the decision to make before the date is what replaces it\, not whic
 h model to switch to.\n\nCaveat: Covers the Videos API plus sora-2\, sora-
 2-pro and three dated snapshots. The recommended-replacement column is emp
 ty for every row in this group\, which is unusual on this page and is the 
 reason it is flagged — an absent replacement is a published fact here\, 
 not an inference.\n\nAuthoritative document (API deprecations ledger): htt
 ps://developers.openai.com/api/docs/deprecations\n\nTracked by Hugin: http
 s://hugin.studio/deadlines\nOnly dates a provider has published about its 
 own product appear here.
URL:https://hugin.studio/deadlines
CATEGORIES:OpenAI\,retirement
TRANSP:TRANSPARENT
STATUS:TENTATIVE
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:OpenAI: There is no migration target published for this one. If
  you depend on the Videos API or any sora-2 model\, the decision to make b
 efore the date is what replaces it\, not which model to switch to.
TRIGGER:-P7D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:openai-legacy-snapshots-september-shutdown@hugin.studio
DTSTAMP:20260818T153635Z
SEQUENCE:3156
DTSTART;VALUE=DATE:20260928
DTEND;VALUE=DATE:20260929
SUMMARY:⚑ OpenAI: Legacy snapshots gpt-3.5-turbo-instruct\, babbage-002\,
  davinci-002 and gpt-3.5-turbo-1106 shut down
DESCRIPTION:Legacy snapshots gpt-3.5-turbo-instruct\, babbage-002\, davinci
 -002 and gpt-3.5-turbo-1106 shut down\n\nBEFORE THIS DATE: Move any pinned
  legacy snapshot to the named substitute\, gpt-5.6-terra\, before the date
 .\n\nCaveat: Part of a stated multi-wave retirement of older models with d
 eclining usage. A substitute model is named for every id in this group.\n\
 nAuthoritative document (API deprecations ledger): https://developers.open
 ai.com/api/docs/deprecations\n\nTracked by Hugin: https://hugin.studio/dea
 dlines\nOnly dates a provider has published about its own product appear h
 ere.
URL:https://hugin.studio/deadlines
CATEGORIES:OpenAI\,retirement
TRANSP:TRANSPARENT
STATUS:TENTATIVE
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:OpenAI: Move any pinned legacy snapshot to the named substitute
 \, gpt-5.6-terra\, before the date.
TRIGGER:-P7D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:openai-legacy-snapshots-october-shutdown@hugin.studio
DTSTAMP:20260818T153635Z
SEQUENCE:335
DTSTART;VALUE=DATE:20261023
DTEND;VALUE=DATE:20261024
SUMMARY:⚑ OpenAI: A second legacy wave shuts down: gpt-3.5-turbo-0125\, g
 pt-4-0613\, gpt-4-1106-preview and gpt-4-turbo\, plus the fine-tuned ft-ba
 bbage-002 and ft-davinci-002
DESCRIPTION:A second legacy wave shuts down: gpt-3.5-turbo-0125\, gpt-4-061
 3\, gpt-4-1106-preview and gpt-4-turbo\, plus the fine-tuned ft-babbage-00
 2 and ft-davinci-002\n\nBEFORE THIS DATE: Substitutes are named per id —
  gpt-5.6-terra for the 3.5 line\, gpt-5.6-sol for the GPT-4 line. Check wh
 ich of your pins is in which wave\; they do not share a date.\n\nCaveat: A
  separate group from the September wave\, announced on its own date. The l
 edger lists each snapshot alias alongside the model name\, so a pin on eit
 her form is covered.\n\nAuthoritative document (API deprecations ledger): 
 https://developers.openai.com/api/docs/deprecations\n\nTracked by Hugin: h
 ttps://hugin.studio/deadlines\nOnly dates a provider has published about i
 ts own product appear here.
URL:https://hugin.studio/deadlines
CATEGORIES:OpenAI\,retirement
TRANSP:TRANSPARENT
STATUS:TENTATIVE
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:OpenAI: Substitutes are named per id — gpt-5.6-terra for the 
 3.5 line\, gpt-5.6-sol for the GPT-4 line. Check which of your pins is in 
 which wave\; they do not share a date.
TRIGGER:-P7D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:openai-agent-builder-shutdown@hugin.studio
DTSTAMP:20260818T153635Z
SEQUENCE:235
DTSTART;VALUE=DATE:20261130
DTEND;VALUE=DATE:20261201
SUMMARY:⚑ OpenAI: Agent Builder shuts down
DESCRIPTION:Agent Builder shuts down\n\nBEFORE THIS DATE: Migrate to the Ag
 ents SDK or ChatGPT Workspace Agents — both are named on the page as the
  continuation path.\n\nCaveat: The ledger states that ChatKit remains avai
 lable. The shutdown is of the builder product\, not of every agent surface
 .\n\nAuthoritative document (API deprecations ledger): https://developers.
 openai.com/api/docs/deprecations\n\nTracked by Hugin: https://hugin.studio
 /deadlines\nOnly dates a provider has published about its own product appe
 ar here.
URL:https://hugin.studio/deadlines
CATEGORIES:OpenAI\,retirement
TRANSP:TRANSPARENT
STATUS:TENTATIVE
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:OpenAI: Migrate to the Agents SDK or ChatGPT Workspace Agents 
 — both are named on the page as the continuation path.
TRIGGER:-P7D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:openai-gpt-image-legacy-shutdown@hugin.studio
DTSTAMP:20260818T153635Z
SEQUENCE:15
DTSTART;VALUE=DATE:20261201
DTEND;VALUE=DATE:20261202
SUMMARY:⚑ OpenAI: The older GPT Image models — gpt-image-1-mini\, gpt-i
 mage-1.5 and the chatgpt-image-latest alias — are removed from the API
DESCRIPTION:The older GPT Image models — gpt-image-1-mini\, gpt-image-1.5
  and the chatgpt-image-latest alias — are removed from the API\n\nBEFORE
  THIS DATE: Repoint image calls at gpt-image-2\, the named replacement for
  all three.\n\nCaveat: chatgpt-image-latest is a floating alias\, so nothi
 ng in your code names a version that could warn you — the id keeps worki
 ng right up to the date and then does not. Notified June 2\, 2026.\n\nAuth
 oritative document (API deprecations ledger): https://developers.openai.co
 m/api/docs/deprecations\n\nTracked by Hugin: https://hugin.studio/deadline
 s\nOnly dates a provider has published about its own product appear here.
URL:https://hugin.studio/deadlines
CATEGORIES:OpenAI\,retirement
TRANSP:TRANSPARENT
STATUS:TENTATIVE
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:OpenAI: Repoint image calls at gpt-image-2\, the named replacem
 ent for all three.
TRIGGER:-P7D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:openai-selfserve-finetuning-new-jobs-end@hugin.studio
DTSTAMP:20260818T153635Z
SEQUENCE:554
DTSTART;VALUE=DATE:20270106
DTEND;VALUE=DATE:20270107
SUMMARY:⚑ OpenAI: Active existing customers can no longer create new self
 -serve fine-tuning jobs
DESCRIPTION:Active existing customers can no longer create new self-serve f
 ine-tuning jobs\n\nBEFORE THIS DATE: If a fine-tuned model is part of your
  roadmap\, the job has to exist before this date — creation ends\, not i
 nference.\n\nCaveat: Scoped to CREATING jobs. The ledger states that infer
 ence on already fine-tuned models is disabled only when the underlying bas
 e model is deprecated\, which is a separate date per base model.\n\nAuthor
 itative document (API deprecations ledger): https://developers.openai.com/
 api/docs/deprecations\n\nTracked by Hugin: https://hugin.studio/deadlines\
 nOnly dates a provider has published about its own product appear here.
URL:https://hugin.studio/deadlines
CATEGORIES:OpenAI\,definitional
TRANSP:TRANSPARENT
STATUS:TENTATIVE
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:OpenAI: If a fine-tuned model is part of your roadmap\, the job
  has to exist before this date — creation ends\, not inference.
TRIGGER:-P7D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:openai-chat-latest-api-shutdown@hugin.studio
DTSTAMP:20260818T153635Z
SEQUENCE:3245
DTSTART;VALUE=DATE:20260810
DTEND;VALUE=DATE:20260811
SUMMARY:⚑ OpenAI: gpt-5.2-chat-latest and gpt-5.3-chat-latest shut down o
 n the API\, replaced by gpt-5.6-sol
DESCRIPTION:gpt-5.2-chat-latest and gpt-5.3-chat-latest shut down on the AP
 I\, replaced by gpt-5.6-sol\n\nBEFORE THIS DATE: If your code pins either 
 alias\, move it to a supported model before the date.\n\nWHAT HAPPENED (fi
 led 2026-08-10 — Confirmed by this desk's own re-read):\nExecuted on sch
 edule\, 94 days after the May 8 notice. The ledger still carries both ids 
 against "Aug 10\, 2026" with gpt-5.6-sol as the replacement\; neither appe
 ars on the live models list\, and no "-chat-latest" alias does.\n\nCaveat:
  Scoped to the two dated chat-latest aliases. The deprecations ledger is t
 he provider's own schedule and is where any change to this date would appe
 ar.\n\nAuthoritative document (API deprecations ledger): https://developer
 s.openai.com/api/docs/deprecations\n\nTracked by Hugin: https://hugin.stud
 io/deadlines\nOnly dates a provider has published about its own product ap
 pear here.
URL:https://hugin.studio/deadlines
CATEGORIES:OpenAI\,retirement
TRANSP:TRANSPARENT
STATUS:CONFIRMED
END:VEVENT
BEGIN:VEVENT
UID:openai-atlas-shutdown@hugin.studio
DTSTAMP:20260818T153635Z
SEQUENCE:3223
DTSTART;VALUE=DATE:20260809
DTEND;VALUE=DATE:20260810
SUMMARY:OpenAI: The Atlas browser stops working
DESCRIPTION:The Atlas browser stops working\n\nWHAT HAPPENED (filed 2026-08
 -10 — Not establishable by this desk):\nReported to have happened\, but 
 not establishable from any OpenAI page this desk can read: help.openai.com
 \, openai.com and chatgpt.com all refuse or challenge the identifying clie
 nt\, while the developer docs serve it the whole document.\n\nCaveat: The 
 release notes say Atlas is scheduled to stop working on this date. A sched
 uled shutdown is a stated plan\, not a guarantee of the hour.\n\nAuthorita
 tive document (Atlas retirement article): https://help.openai.com/en/artic
 les/20001371-evolving-atlas-into-chatgpt-for-browser-based-agentic-work\nA
 nnounced in: https://help.openai.com/en/articles/6825453-chatgpt-release-n
 otes\n\nTracked by Hugin: https://hugin.studio/deadlines\nOnly dates a pro
 vider has published about its own product appear here.
URL:https://hugin.studio/deadlines
CATEGORIES:OpenAI\,retirement
TRANSP:TRANSPARENT
STATUS:CONFIRMED
END:VEVENT
END:VCALENDAR