Instructor
Structured output extraction from LLMs with Pydantic
About
Instructor extracts structured outputs from LLMs using Pydantic models for schema definition and validation. It wraps the OpenAI, Anthropic, Google, Mistral, Cohere, and Ollama SDKs (and any OpenAI-compatible endpoint), automatically retries on validation errors with the error message in context, and supports streaming, partial responses, and custom field validators. Released under the MIT license; widely used as a small alternative to full agent frameworks.
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Details
- Category
- AI Frameworks & Libraries
- Price
- Free
- Platform
- Hybrid
- Difficulty
- Easy (2/5)
- License
- MIT
- Added
- Jan 29, 2026
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