How to migrate from OpenAI API: gpt-4o, gpt-4o-mini, gpt-4.1, gpt-4.1-mini to gpt-6-luna (OpenAI's stated replacement)

70 days until OpenAI API: gpt-4o, gpt-4o-mini, gpt-4.1, gpt-4.1-mini shuts down (2027-01-14). Do not wait.

1. Export your OpenAI API: gpt-4o, gpt-4o-mini, gpt-4.1, gpt-4.1-mini data now. See the export checklist. Grab the full archive, verify it opens.
2. Set up gpt-6-luna (OpenAI's stated replacement). https://developers.openai.com/api/docs/deprecations - create the account and map your core objects before importing.
3. Run both in parallel for one cycle to catch gaps before OpenAI API: gpt-4o, gpt-4o-mini, gpt-4.1, gpt-4.1-mini goes dark.
4. Cut over: update integrations, billing and runbooks; keep the OpenAI API: gpt-4o, gpt-4o-mini, gpt-4.1, gpt-4.1-mini export archived.

Full export checklist →

Cite this page

"Migrating from OpenAI API: gpt-4o, gpt-4o-mini, gpt-4.1, gpt-4.1-mini to gpt-6-luna (OpenAI's stated replacement)." Bikoosh Shutdown Watch, verified 2026-11-05. https://bikoosh.com/shutdowns/migrate/openai-gpt-4o-gpt-4-1-api-models/to-gpt-6-luna-openai-s-stated-replacement

gpt-6-luna (OpenAI's stated replacement) is a documented option, not an endorsement. Shutdown Watch tracks vendor announcements and public deadlines; it is monitoring assistance, not legal or migration advice.