OpenAI will cease accepting new self-serve fine-tuning jobs on January 6, 2027. Existing fine-tuned models will continue to function until their base models are retired. Users are advised to list their fine-tuned models and note the base model for each. AI
IMPACT This change will affect users who rely on self-serve fine-tuning, potentially requiring migration of custom models or adaptation of workflows.
RANK_REASON This is a product-level announcement regarding a specific feature's deprecation, not a core model release or research milestone.
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