Alternatives to OpenAI Cookbook

Open-source Swift package wrapping the OpenAI API with async/await and Combine.

Extra-small OpenAI-compatible AI SDK for JS — 40x smaller installs.

Open-source TypeScript toolkit for building AI apps with 100+ models, streaming, and agent support

Open-source Python library for guaranteed valid structured outputs from LLMs

An open-source Python library for steering LLMs with native control flow, regex, and CFG constraints.

Run LLMs in-browser with WebGPU — headless React hooks, just useLLM().

LMQL is a programming language for LLM interaction with typed constraints, nested queries, and multi-backend portability.

Fast Java tokenizer library for OpenAI GPT models using BPE

Free, zero-knowledge browser markdown editor for prompt testing and multi-model comparison.

Build AI agents on small language models—run locally or via any OpenAI-compatible server.

Free visual prompt builder that compiles prompts into Claude-optimized XML blocks

React frontend stack for building agentic user experiences with generative UI

An open-source Python framework that turns ordinary functions into AI-powered tools via simple decorators.

Build LLM apps with decorators, observability, and full control.

Predibase by Rubrik: Fine-tune and serve open-source LLMs on managed infrastructure.

A type-safe programming language for building AI agents with compile-time guarantees on structured outputs.

Pydantic AI: Python SDK for typed, production-grade AI agents with every model a string swap away.

Open-source LLM that turns natural language into API calls for tool-using agents

Go-native LLM framework by ByteDance for building production-grade AI applications.

Open-source framework for building private, on-premise RAG applications with 100% local data control.

Build type-safe LLM agents in Rust with one unified provider API.

LangChain中文文档与社区，助你快速掌握LLM应用开发

Google's open-source framework for building agentic AI apps in JS, Go, Python & Dart.

Open-source streaming-first toolkit that turns AI agent output into interactive UI, not JSON.

Document-aware AI editing SDK for rich-text editors

Fast, streaming LLM applications in Rust

Open-source MCP testing & app framework for building ChatGPT Apps and Claude Connectors.

Local-first AI workbench to build, evaluate, and optimize AI systems

Compress AI agent context by 60–90% with a local, open-source MCP server.

Ruby-first MCP client library for RubyLLM apps