OpenAI · api
fine-tuning deprecation: shutdown date & replacement
Shuts down January 6, 2027 — in 102 days
- Provider
- OpenAI
- Name
- Self-serve fine-tuning (job creation)
- Type
- api
- Announced
- Shutdown
- Replacement
- —
- Source
- Official OpenAI notice
Self-serve fine-tuning: active existing customers can no longer create new fine-tuning jobs. Inference on fine-tuned models continues until the base model is deprecated. New orgs blocked from May 7, 2026; orgs without recent fine-tuned inference blocked from July 2, 2026.
How to migrate off fine-tuning
- Find every place that references it:
grep -rn --exclude-dir={node_modules,.git,dist} "fine-tuning" . - Follow the provider’s migration notes in the official notice.
- Re-run your evals or a sample of real prompts — output style, token usage and pricing can change between APIs.
- Check config outside code too: environment variables, feature flags, prompt-management tools, and fine-tuned model references.
- Deploy before January 6, 2027, and add the CI scanner so it cannot come back.
Same model on other platforms
- Cohere — September 15, 2025
Questions
Is fine-tuning deprecated?
Yes. OpenAI has deprecated fine-tuning. It shuts down on January 6, 2027.
When does fine-tuning shut down?
January 6, 2027, according to OpenAI's official deprecation notice.
What should I use instead of fine-tuning?
OpenAI has not named a specific replacement. Check the official source for current models.
What happens to requests to fine-tuning after the shutdown?
Requests using the retired model ID fail with an error, so any code still calling it breaks. Update and deploy before the shutdown date.