Ex-Plaud exec raises $26M for Ambi, an AI that listens all day

Former Plaud executive Peter Mo has raised $26 million for Ambi, a startup whose AI apps listen to users continuously to deliver real-time intelligence during conversations, not just summaries afterward.

Ambi announced the funding on Monday. The rounds were led by Luminous Ventures — a backer of Meituan and Unitree Robotics — and by Original Design Manufacturer Huaqin. Alongside the funding, the company is releasing apps for iPhone, Mac and Apple Watch.

The bet behind Ambi is straightforward: the more an AI system knows about a person, the better it can assist them. That premise has pushed startups toward apps and devices that listen, watch or record user activity all the time to gather context. It has also produced a wave of privacy disputes, lawsuits against meeting note-takers, and growing scrutiny of always-on features such as Apple's Voice Intelligence. Ambi is entering that market anyway, on the conviction that demand for personalized assistance is large enough to overcome users' concerns about continuous data collection.

What do the apps actually do?

Ambi's apps function like meeting note-takers, but with a crucial difference: users can leave them listening all day to capture context continuously. Meeting note-taking companies have spent years automating the tasks that follow a call — generating summaries and action items, then pushing them into other software systems through connectors. Ambi wants to move that work earlier in the timeline. Its AI agent starts working during the meeting itself.

According to the company, the agent can proactively offer suggestions or surface relevant knowledge mid-conversation, drawing on the user's calendar, meetings, knowledge base and web data. The apps also sync across devices: a user can start a task on one device and continue it on another.

Mo, Ambi's co-founder and CEO, framed the product as an attempt to free intelligence from the screen and from the delays of hardware-based recording.

"The way we interact with intelligence is limited. Often the intelligence is trapped on the screen, and if you use hardware like Plaud, you need to wait for recording to transfer to the phone, upload to the cloud, and get intelligence after processing. That's why we are building Ambi to use AI anytime and anywhere," Mo told TechCrunch.

How far does the data capture go?

Ambi has larger ambitions than audio. An upcoming desktop app will observe the work users do and store important parts in its memory to generate more personalized suggestions. The company positions this as a natural extension of ambient listening, and it is not the first to try: apps like Littlebird and Minimi already capture screen activity in a similar way.

The startup is also planning its own hardware device. It will carry a screen, a speaker, a camera and microphones — a full sensor suite designed to capture context and display information.

That roadmap puts Ambi in direct competition with both software makers building ambient AI assistants and hardware companies building context-aware devices. Mo knows the latter category well from his time at Plaud, whose recording hardware he implicitly criticized in his comments on processing delays.

Can Ambi survive the privacy question?

Ambi's launch lands amid mounting concern about AI devices that lack clear indicators when they capture data about people around the user. It is not clear whether Ambi's apps or its upcoming device will carry enough indicators to alert third parties that a conversation is being recorded, if the user does not disclose their use of the technology.

The legal exposure is real. Some meeting note-takers have been sued because their technology recorded people's conversations and data without consent. Apple's recent release of Voice Intelligence, which transcribes speech continuously, has drawn similar privacy concerns.

Mo said users can turn off ambient data capture on Ambi's apps and devices at any time, and that the feature is off by default. The startup said it does not store recordings of users' data and encrypts the data it does hold — though it did not specify what kind of encryption it uses.

Even with those measures, the burden of disclosure falls on the user. Mo classified this as an industry-wide problem rather than one Ambi can solve alone.

"We have to inform our users that they have to tell others about ambient capture. We, as an industry, haven't solved this problem [of disclosure]. We have tried to put the information about disclosure in every place possible, but if users try to hide the capture, we can't just solve the problem," he said.

The statement is notable for what it concedes: no technical safeguard prevents an Ambi user from covertly recording a conversation. The company's mitigation is documentation and defaults, not enforcement.

What comes next for the company?

Ambi currently employs more than 50 staff across offices in San Francisco, Beijing, Shanghai and Shenzhen. The company is hiring for its go-to-market function and for AI engineers to work on speech recognition models — a signal that it intends to build its own transcription stack rather than rely entirely on third-party models.

The $26 million gives Ambi room to ship its desktop app, advance its hardware plans and staff up before the ambient-AI category consolidates. Whether the category survives at all may depend on whether the industry solves the disclosure problem Mo admits remains open.