dspy

DSPy: declarative LM programs, auto-optimize prompts, RAG.

[PromptEngineeringDSPyDeclarative

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outlines

Outlines: structured JSON/regex/Pydantic LLM generation.

[PromptEngineeringOutlinesStructured

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instructor

Extract structured data from LLM responses with Pydantic validation, retry failed extractions automatically, parse complex JSON with type safety, and stream partial results with Instructor - battle-tested structured output library

[PromptEngineeringInstructorStructured

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guidance

Control LLM output with regex and grammars, guarantee valid JSON/XML/code generation, enforce structured formats, and build multi-step workflows with Guidance - Microsoft Research's constrained generation framework

[PromptEngineeringGuidanceConstrained

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