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年の徹底比較。各AIの評価・価格・強み・制限を並べて確認し、最適なものを選びましょう。