块公司全新 AI 语音模型 Dessa 完全基于人类语音训练以捕捉文本模型忽略的情绪
Block's new AI model Dessa was trained entirely on human speech to catch emotions text-based models miss
块公司推出 AI 语音模型 Dessa，该模型完全基于人类语音训练，不使用任何文本数据，直接处理音频以实时捕捉情绪、讽刺、笑声和停顿，支持全双工通信，可在 MacBook Pro M4 Max 上本地运行，由单个 NVIDIA GB200 NVL72 训练，目前尚未公开可用，团队正在招募 AI 安全研究人员进行测试。
同一件事另外 4 家也报道了
各家口径不同：The Verge 提及模型对话偶有'生硬和诡异'表现；The Decoder 和 TechCrunch 没有提到这一点。
- The Verge · AI··首发
- The Decoder··+18 小时 37 分·当前阅读
块公司全新 AI 语音模型 Dessa 完全基于人类语音训练以捕捉文本模型忽略的情绪
新增信息：使用 NVIDIA GB200 NVL72 进行训练。
- TechCrunch · AI··+20 小时 27 分
新增信息：支持全双工通信。
- IT之家 · AI··+30 小时 57 分
Block 推出全双工 AI 语音模型 Dessa：真人感拉满，支持苹果 MacBook 本地运行
新增信息：知识来源于真实对话数据。
- MarkTechPost··+6 天
新增信息：使用 1 个包含 72 个 Blackwell GPU 的机架进行训练。
按发布时间排列 · 事件后续出现时自动追加 · 由模型根据各家标题与摘要比对
Block, the company behind Square and Cash App, has unveiled an AI speech model called Dessa.
Block says Dessa is the first AI model trained entirely on human speech, with no text data at all, built from scratch. Instead of converting audio to text first, Dessa processes speech directly as audio. That lets it pick up on emotions, sarcasm, laughter, and pauses in real time.
The model supports full-duplex communication, so it can listen and talk at the same time. It runs locally on a MacBook Pro M4 Max and was trained on a single NVIDIA GB200 NVL72. Block says it built Dessa out of curiosity, a desire for better human-AI communication, and safety concerns, since current voice AI ignores emotional cues. Dessa isn't publicly available yet. The team is first looking for AI security researchers to test the model for unexpected risks. Anyone interested can sign up via a form.
Earlier attempts at emotional voice AI haven't stuck
Several teams have tried to build voice AI that sounds emotionally rich. In March 2024, the startup Hume AI launched EVI (Empathic Voice Interface), a voice AI with "emotional intelligence." Kyutai followed in September 2024 with Moshi. LAION's Open Empathic project has been working since late 2023 on training empathetic speech synthesis models using an open-source audio dataset. OpenAI overhauled ChatGPT's "Advanced Voice Mode" in June 2025 and has continued refining it since then, adding better intonation, pausing, and more realistic expressions of empathy and sarcasm.
But sounding emotional isn't the same as being emotional or intelligent, even if it creates that impression. For advanced speech AI, capabilities like reasoning while responding matter more than how natural the voice sounds, because they actually affect the quality of the answer.
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来源: The Decoder · the-decoder.com