Show HN: AI support chatbot with RAG and citations – one back end file, no infra vs Show HN: ChatGPT Exporter – Local DOM to Word/PDF Parser

Show HN: AI support chatbot with RAG and citations – one back end file, no infra vs Show HN: ChatGPT Exporter – Local DOM to Word/PDF Parser 2026 全面对比。并排查看每款 AI 的评分、价格、优势和限制，选出最适合你的工具。