Primary official sources. Traceable record by record.Provider docs, changelogs and official announcements only

12primary source pages30verified eventsSep 1, 2026 – Sep 10, 2026 (UTC)

Public information directory · tailored email service

UTC 2026-09-16 build snapshot, not live metrics. Date states can update; source verification timestamps do not.

API platform & regional scope

Z.ai Model API · International docs.z.ai Model API; country eligibility not established here.

Not bigmodel.cn or GLM Coding Plan quotas/billing.

Bounded manual review of the registered official sources; not a complete archive.

Unconfirmed regions are not assumed to be global. Automatic monitoring is OFF. Source checks

Z.ai / GLM

Z.ai / GLM API change watch

Developer API changes for Z.ai / GLM: releases, lifecycle and request compatibility.

Tracked events1Normalized records

Upcoming0With stated dates

Upcoming critical0Shutdown risk

Verification date rangeSep 2, 2026 (UTC)Public docs · not build date

Timeline

Z.ai / GLM events

Initial coverage is intentionally narrow and source-verified. It is not a complete archive.

Z.ai / GLM

LowVerified

Developer API · Aug 26, 2026

Verification is under 30 days old, not a live check; date passage does not confirm shutdown.

glm-5.3-flash was announced on Aug 26, 2026; its model page separately documents Model API access.

Update · no required migration

Product updateModel Release

glm-5.3-flash