Self-serve fine-tuning job creation closes for active existing customers

What changed

Impact summary

OpenAI states that active existing customers will no longer be able to create new self-serve fine-tuning jobs from Jan 6, 2027.

BeforeEligible existing customers can create fine-tuning jobs

After / replacementNew fine-tuning job creation unavailable; inference continues until base model deprecation

Affected models and systems

Self-serve fine-tuning platform

Migration action

Recommended next step: Review whether new self-serve training jobs are part of your roadmap. Preserve training data, job metadata and evaluation baselines, and identify an alternative training path before the stated date.

Source and interpretation

API platform & regional scope

OpenAI direct API · Direct developer platform; eligibility and regional restrictions are account-specific.

Not Azure OpenAI.

Bounded manual catalog. Original event checks retained from 2026-09-01; not reverified in this expansion.

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

Official evidence locators

Existing normalized record: evt_openai_finetune_2027. Locate listed affected model(s) in the lifecycle/release table; original manual check retained.

Original source date and qualifier retained; exact shutdown time is not inferred.

Affected endpoints: Not separately specified; check model / capability scope

Action / deadline: Review required · Stated deadline

This record is classified as official announcement. The facts above were normalized from the provider's public developer documentation. API Change Watch does not treat an unreviewed page diff as a verified announcement.

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