LangChain4j

Spring AI Alibaba 是面向 Java 开发者的 Agentic AI 框架，基于 Spring 生态提供多智能体协作、工作流编排和 RAG 能力。

llmware 是一个面向企业的统一 RAG 框架，支持小型专用模型的快速部署，提供知识图谱、文档解析、向量索引和 Agent 工具链，适合构建私有化合规的 AI 应用。

An application framework for AI engineering from the Spring team, providing unified LLM integration, vector storage, function calling, RAG, and agent development for Java and Spring ecosystems with support for OpenAI, Anthropic, Ollama, and more.

Build modular and scalable LLM Applications in Rust. Provides agent orchestration, tool-use, RAG pipelines, and other core capabilities for high-performance AI agent systems.