LangGPT vs chat2doc.cn：怎么选？

关于 LangGPT

It is the most popular, most widely adopted, and most practical structured prompt paradigm in the Chinese AI community— proposed byYunzhong Jiangshu (云中江树)in 2023. Over the years it has been learned so deep into major large language models that when a model speaks LangGPT, it is no longer because you taught it — it already knows. Perhaps the finest fate of a paradigm is this: to no longer need its name remembered, having become the model's mother tongue. Just say "write this the LangGPT way," and it's already there (seeQuick Start).

Rather than writing prompts as procedures, write the persona. Writing prompts as procedures gives the model steps and tools. Writing prompts as a persona gives the model a worldview, motivations, a value system, and a preference profile. Below are prompts that Yunzhong Jiangshu wrote while studying some well-known figures.

LangGPT has been learned deep into major large language models, somost models already "know" it. The simplest way to use it needs no template at all — just say the keywords to any mainstream model (ChatGPT, Claude, DeepSeek, Gemini, Kimi, Doubao, Qwen, etc.), and it's already there:

核心功能

• ? Structured prompt templates (Role, Profile, Skills, Rules, Workflow)
• ? Rich example library (FitnessGPT, Poet, Xiaohongshu Master, Name Master, etc.)
• ? Advanced techniques: variables, commands, conditional logic
• ? Model compatibility guide (GPT-4, Claude, GPT-3.5)

Chat2Doc.cn是一款专注于文档交互的AI聊天工具，用户可以通过自然语言与上传的PDF、Word、Excel等文件进行对话，快速获取信息。其核心功能包括智能问答，能够理解文档内容并直接回答用户提出的问题，例如从合同或报告中提取关键数据；还支持多文档对比分析，帮助用户同时处理多个文件，找出差异或汇总要点。此外，它具备上下文记忆能力，可基于连续对话深入挖掘文档细节。这款工具适合需要频繁处理文档的办公人员、学生和研究者，尤其适用于合同审查、学术文献解读、数据分析报告梳理等场景，能显著提升信息检索和整理效率。