Introduction to OpenAI Open Weight Models

Introduction to OpenAI Open Weight Models
Instructor: Jon Friskics

What you’ll learn

First, you’ll explore how to choose between gpt-oss-20b and gpt-oss-120b and run them locally and in the cloud with tool use and structured output. Next, you’ll discover how to tune reasoning effort and use the 128k context window for long-form and multi-document tasks. Finally, see an example of fine-tuning gpt-oss on a domain-specific dataset and how the result compares to frontier models.

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