Interviewing is a social game with unwritten rules, scored by people who never explain the score. Duos is the rehearsal. Paste a job posting and put on headphones. Talk to interviewers who've read your CV, change tactics mid-convo, and are fun to figure out. Interview, debrief, repeat until you're ready. Proudly over-engineered multi-agent stack inside.
痛点：求职者面试后拿不到具体反馈，不知道为何被拒，只能盲目猜测；需要一个能模拟真实面试官、反复练习并给出复盘反馈的彩排工具。
目标用户：正在准备面试的求职者，尤其是白领、技术岗和需要频繁面试的转行人群。
证据：Stop guessing why you're not getting hired. Interviewing is a social game with unwritten rules, scored by people who never explain the score. Duos is the rehearsal.
变现：Freemium + 订阅制：免费提供少量模拟面试，付费解锁无限次对话、定制岗位题库、详细复盘报告、语音面试；也可面向高校就业中心、求职训练营做 B2B 授权。
MVP：2 周内做出 Web MVP：上传简历、粘贴 JD、选择面试官风格，基于 LLM 做文本/语音模拟面试，支持中途追问和策略调整，结束后生成结构化复盘报告（问题点、表达弱项、改进建议）。
竞品：Google Interview Warmup、Final Round AI、Yoodli、Big Interview、Interviewing.io、Huru
摘要：Product Hunt 上 Duos 2.0 发布，17 票。它让求职者粘贴职位描述并戴耳机与模拟面试官对话，面试后复盘，反复练习到准备好。它切中求职者缺少面试反馈、只能猜测失败原因的痛点，但正文未披露定价或收入，热度较低，且 AI 面试练习赛道竞品较多。