model-retirements
Every record this desk has filed under model-retirements, newest first, each with the number of sources it can still show you.
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
A record appears here because it carries model-retirements in its own frontmatter. If a record you expected is missing, it was filed under a different subject — the full list is on the topics index.