检索增强生成（RAG）让大模型根据你自己的文档回答问题：文本先被切成小块、转成向量、存进索引，提问时把最相关的几块加进提示词。这里的项目覆盖整条管线，或其中一环：文档解析、向量检索，或者完整的问答应用。
RAG 的回答质量主要取决于检索，而不是模型。比较时看：它怎么处理 PDF、表格、扫描件这类难文档；是否支持关键词加向量的混合检索和重排序；以及能不能显示答案出自哪些来源。
LangChain4j is an idiomatic, open-source Java library for building LLM-powered applications on the JVM. It offers a unified API over popular LLM providers and vector stores, and makes implementing tool calling (including MCP support), agents and RAG easy. It integrates seamlessly with enterprise Java frameworks like Quarkus and Spring Boot.
One portable memory layer for every AI agent: local-first, Markdown-native, user-owned, and self-evolving across apps, tools, and workflows.
💡 All-in-one AI framework for semantic search, LLM orchestration and language model workflows
[MLsys2026 Best Paper]: https://arxiv.org/abs/2506.08276. RAG on Everything with LEANN. Enjoy 97% storage savings while running a fast, accurate, and 100% private RAG application on your personal device.
您的美股、大宗商品、外汇、加密货币人工智能交易终端助手。
一款跨平台的 Markdown AI 笔记软件。这是为了确保有用的碎片在你有时间把它们变成完整的东西之前不会消失。
ConardLi 的开源技能集合，包括网页设计、知识检索、图像生成等。
Retrieval and Retrieval-augmented LLMs
Convert any URL to an LLM-friendly input with a simple prefix https://r.jina.ai/
BISHENG is an open LLM devops platform for next generation Enterprise AI applications. Powerful and comprehensive features include: GenAI workflow, RAG, Agent, Unified model management, Evaluation, SFT, Dataset Management, Enterprise-level System Management, Observability and more.
Incremental engine for long horizon agents 🌟 Star if you like it!
适用于 LLM 和 AI 代理的自我进化内存操作系统：超持久内存、混合检索和跨任务技能重用，可节省 35.24% 的代币。
🔍大模型应用开发实战一：RAG 技术全栈指南，在线阅读地址：https://datawhalechina.github.io/all-in-rag/
AI Agent Engineering Platform built on an Open Source TypeScript AI Agent Framework
Production ready toolkit to run AI locally
https://adongwanai.github.io/AgentGuide | AI Agent开发指南 | LangGraph实战 | 高级RAG | 转行大模型 | 大模型面试 | 算法工程师 | 面试题库 | 强化学习｜数据合成
Deeplake is AI Data Runtime for Agents. It provides serverless postgres with a multimodal datalake, enabling scalable retrieval and training.
智能闲鱼客服机器人系统：专为闲鱼平台打造的AI值守解决方案，实现闲鱼平台7×24小时自动化值守，支持多专家协同决策、智能议价和上下文感知对话。
World's first open-source enterprise world model.
Evidently is an open-source ML and LLM observability framework. Evaluate, test, and monitor any AI-powered system or data pipeline. From tabular data to Gen AI. 100+ metrics.
22 prompt engineering techniques with hands-on Jupyter Notebook tutorials, from fundamental concepts to advanced strategies for leveraging LLMs.
每个人都能看懂的大模型知识分享，LLMs春/秋招大模型面试前必看，让你和面试官侃侃而谈
Memory library for building stateful agents
Python & Command-line tool to gather text and metadata on the Web: Crawling, scraping, extraction, output as CSV, JSON, HTML, MD, TXT, XML