====== Structured Outputs ======

===== LangChain =====
  * **Website**: [[https://www.langchain.com/]]
  * **GitHub**: [[https://github.com/langchain-ai/langchain]]
  * **Features**: 
    * Offers `.with_structured_output()` method
    * PydanticOutputParser
    * StructuredOutputParser

===== Instructor =====
  * **GitHub**: [[https://github.com/jxnl/instructor]]
  * **PyPI**: [[https://pypi.org/project/instructor/]]
  * **Features**: 
    * Built on Pydantic
    * Facilitates generating structured output from LLMs

===== Marvin =====
  * **Website**: [[https://www.askmarvin.ai/]]
  * **GitHub**: [[https://github.com/PrefectHQ/marvin]]
  * **Features**: 
    * Tool for building reliable natural language interfaces
    * Supports structured output capabilities

===== BAML =====
  * **Website**: [[https://www.baml.dev/]]
  * **GitHub**: [[https://github.com/baml-lang/baml]]
  * **Features**: 
    * Domain-specific language for writing and testing LLM functions

===== Pydantic =====
  * **Website**: [[https://docs.pydantic.dev/]]
  * **GitHub**: [[https://github.com/pydantic/pydantic]]
  * **Features**: 
    * Often used with other libraries to define and validate structured output schemas

===== Magentic =====
  * **GitHub**: [[https://github.com/jackmpcollins/magentic]]
  * **PyPI**: [[https://pypi.org/project/magentic/]]
  * **Features**: 
    * Works with Pydantic to generate complex structured outputs from LLMs

===== llm-structured-output =====
  * **GitHub**: [[https://github.com/KillianLucas/llm-structured-output]]
  * **PyPI**: [[https://pypi.org/project/llm-structured-output/]]
  * **Features**: 
    * Constrains LLM generation to structured output
    * Includes function calling and JSON schema enforcement

===== LlamaIndex =====
  * **Website**: [[https://www.llamaindex.ai/]]
  * **GitHub**: [[https://github.com/jerryjliu/llama_index]]
  * **Features**: 
    * Supports both prompting and function calling for structured output

===== spacy-llm =====
  * **GitHub**: [[https://github.com/explosion/spacy-llm]]
  * **PyPI**: [[https://pypi.org/project/spacy-llm/]]
  * **Features**: 
    * Uses prompting for generating structured output

===== Outlines =====
  * **GitHub**: [[https://github.com/outlines-dev/outlines]]
  * **PyPI**: [[https://pypi.org/project/outlines/]]
  * **Features**: 
    * Employs constrained token sampling for structured output generation

===== Guidance =====
  * **GitHub**: [[https://github.com/microsoft/guidance]]
  * **PyPI**: [[https://pypi.org/project/guidance/]]
  * **Features**: 
    * Uses constrained token sampling for structured outputs