Instructor

Instructor is the most popular Python library for extracting structured data from Large Language Models (LLMs). With over 3 million monthly downloads, it’s the go-to solution for developers needing reliable, validated outputs from AI models.

Built on Pydantic, it provides type-safe data extraction with features like:

• Structured Outputs: Define Pydantic models to specify data requirements.
• Automatic Retries: Built-in logic for when validation fails.
• Data Validation: Ensures response quality with Pydantic.
• Streaming Support: Real-time processing of responses from multiple providers like OpenAI, Google, and more.
• Type Safety: Full IDE support and autocompletion.