Introducing improvements to the fine-tuning API and expanding our custom models program

Practical AI: Tools, Models & Frameworksfine-tuningapi

What changed

We’re adding new features to help developers have more control over fine-tuning and announcing new ways to build custom models with OpenAI.

Why it matters

A concrete addition to Practical AI: Tools, Models & Frameworks: it changes what's available to builders today rather than being general commentary.

How it compares

Related prior coverage to compare against:

  • Fine-Tuning Gemma Models in Hugging Face
  • OpenAI o1 and new tools for developers
  • Fine-tuning now available for GPT-4o

Sources