01 · Operational consequence
Lifecycleupcoming
Severityhigh
ConsequenceThe listed API surface and exact IDs are scheduled for removal on 2026-09-28. Current availability was not tested.
02 · Affected subjects
Componentsgpt-3.5-turbo-instruct, babbage-002, davinci-002, gpt-3.5-turbo-1106
AudienceDevelopers whose OpenAI API integrations depend on these exact retiring IDs or API surface.
RegionOpenAI API; no regional exception documented
03 · Detection
Stable event IDksr-openai-legacy-completions-2026-09-28
Change typeretirement
04 · Before → after
BeforeDeprecated; the announced shutdown deadline has not yet passed.
AfterScheduled for API removal on 2026-09-28.
05 · Required action
ActionFind these IDs in deployed configuration. Validate endpoint, request format, output behavior and cost for a Terra migration; do not treat it as a drop-in legacy Completions replacement.
Replacement or migration pathgpt-5.6-terra; validate endpoint, request format, output behavior and cost before migration.
06 · Actionable date
Date roleMigration deadline
Date2026-09-28
Statusupcoming
07 · Kingy reproduction
StatusNot tested
LimitationsOfficial source evidence reviewed; no vendor API call or production reproduction was run.
08 · Sources and revision
Checked2026-09-21
Official sourceshttps://developers.openai.com/api/docs/deprecations
Correction historyNo corrections recorded.