model-retirements

1. October 9, 2026News2 receipts2 min

   Google schedules its older Deep Research agent to shut down October 23 and names two migration targets

   Google's October 8 Gemini API changelog says its December 2025 Deep Research preview agent will shut down October 23. It names two April 2026 agents as replacements and tells developers to change the agent parameter in their requests. The deprecations table qualifies listed shutdown dates as the earliest possible. The announcement was read October 9; no endpoint availability was tested.

   Also filed undergooglegemini-apideep-researchdeveloper-tools

2. August 6, 2026News10 receipts7 min

   August 6: the first window came due. It moved — one link away from where we were looking.

   Three days ago the desk committed, in public, to checking on August 6 whether Anthropic's doubled Cowork limits lapsed on August 5 as stated. The check ran. The launch post still says August 5, unchanged. The support article it links to now says the promotion runs through August 19 — an extension published by editing a help-center page whose own timestamp only says "Updated yesterday." The same day, a different dated Anthropic term held exactly: Opus 4.1 was retired on August 5, one year to the day after its release. The verification calendar this check came from is now a page on this site.

   Also filed underaianthropicopenaiclaudecoworkopusgpt-5-6dated-termsusage-limitsverification-calendarsource-receiptsevidence-posture

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