#pydantic Prompts

Get structured data from LLMs with Instructor. Pattern: 1. Define Pydantic models for output. 2. Use instructor.patch() on OpenAI client. 3. LLM returns validated objects. 4. Automatic retry on validation errors. 5. Partial streaming for progressive updates. 6. Union types for multiple formats. 7. Nested models for complex data. 8. Field descriptions guide LLM. Type-safe LLM outputs. Use for data extraction and classification.