OpenAI retires Evals, Agent Builder and gpt-5 — first deadline Oct 31
Export your evals before Saturday and start migrating off gpt-5: a wave of OpenAI sunsets between Oct 31 and Dec 11 will break untouched workflows.
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Evals dashboard freezes this Saturday
OpenAI's Evals platform goes read-only on Oct 31, and the dashboard plus API shut down entirely on Nov 30. Export your runs now — OpenAI points you to Promptfoo as the migration path.
Agent Builder shuts down Nov 30
The no-code Agent Builder canvas is retired on Nov 30; rebuild those flows on the Agents SDK or ChatGPT Workspace Agents. ChatKit stays, so your embedded chat UI keeps working.
Reusable prompts go dark the same day
The v1/prompts API and stored prompt objects retire Nov 30. Move prompt text into your app code before then, or calls that reference a prompt ID start failing in production.
gpt-5 and o3 sunset Dec 11
gpt-5, -mini, -nano, -pro and o3/o3-pro all retire on Dec 11 — swap to gpt-5.6-sol, -terra or -luna. Pin exact model IDs and re-test prompts, since defaults and behavior shift across the jump.