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Tag #structured-output

instructor

567 Labs

Structured, validated outputs from any LLM — define a Pydantic model and get a typed object back.

v1.17.02026-09-09PythonMIT
#structured-output #pydantic #validation #python
13.9k Completely free Open source
OpenAI

OpenAI

OpenAI

OpenAI's GPT models via the API — function calling, structured outputs, and the de-facto API shape

v3.17.02026-09-22APIProprietary
#llm #function-calling #structured-output #api
31.7k Paid
Pydantic AI

Pydantic AI

Pydantic

Type-safe agent framework from the Pydantic team — structured, validated results with any model

v2.47.02026-09-22PythonMIT
#agents #structured-output #pydantic #python
20.1k Completely free Open source