Deta is a Berlin- and New York-based startup founded in 2019 that is developing Surf, an AI browser blended with a research notebook akin to Google’s NotebookLM. The beta-stage app allows users to open URLs, PDFs, and YouTube videos, then employ an integrated chatbot to summarize, extract insights, or generate code that can be saved into topic-based notebooks. Surf keeps data local so it can operate offline, and users can reference multiple open tabs as context when querying the AI. The product is currently free, and the team is experimenting with image generation while planning a future premium tier that could add cloud backup, collaboration, and multi-device sync. Deta originally aimed to build a new operating system on an infinite white canvas but sunset that effort in 2023 to focus on an AI browser opportunity. Financially, the company raised a $3.6 million seed round in 2023 and later secured an additional $500,000, bringing total funding to roughly $4.1 million. No revenue or user metrics have been disclosed.

Total raised

$4M

Funding rounds

2

Latest round

Equity

Latest activity

Oct 2025