ExtraBrain 是一款面向面试、会议、讲座与研究场景的本地优先（Local-First）桌面 AI 副驾工具，当前支持 Mac。它可在实时通话中提供转写、上下文感知提示、结构化回答建议与会话记忆，并支持本地 Gemma 4（在已安装且兼容时）及用户自选的外部 AI 提供商，帮助工程师、候选人、学生、产品与研究团队在高压实时沟通中更高效地整理思路与产出结论。
使用时先下载并打开 Mac 客户端，完成麦克风、转写方式（本地 Parakeet 或可选 Deepgram）与模型设置（本地 Gemma 4 或接入 OpenAI/Anthropic/Claude/Codex 等）。在面试或会议进行过程中，持续查看实时转写与助手输出，获取澄清问题、解题结构、风险点与跟进建议；会后可一键沉淀总结、行动项、未决问题和复盘要点。
免费版可用；Pro 版 $6.99/月（早鸟），$79/年，$149 终身；企业版为定制报价。
ExtraBrain
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