HCompany, the French AI startup building agent-focused tools on top of open models, has launched HoloTab - an AI companion designed to live inside your browser rather than alongside it.
According to HCompany's announcement on the Hugging Face blog, HoloTab is built as a browser-native layer rather than a sidebar extension. The idea is that the AI operates within the context of whatever tab you have open, rather than requiring you to copy text over to a separate chat window like ChatGPT or Claude.
What Sets This Apart From a Sidebar
Most browser AI tools - Microsoft Copilot in Edge, various Chrome extensions - work as panels that sit next to the page. You see the page, you see the AI panel, and you shuttle information between them manually. HoloTab's approach appears to make the AI aware of the page you're on directly, positioning it as part of the tab rather than adjacent to it.
HCompany has been building on Hugging Face's open-model infrastructure, which suggests HoloTab likely runs on open-weight models rather than routing your browsing activity to proprietary API endpoints. That's a meaningful distinction for anyone handling sensitive work - client documents, internal research, financial data - who doesn't want that content passing through a third-party AI provider's servers. HCompany hasn't published full technical documentation yet, so the exact data handling details aren't confirmed.
The browser AI space is getting crowded fast. Microsoft has Edge Copilot. Arc has its own AI features baked into the browser itself. Several Chrome extensions offer varying levels of page-aware AI. Where HoloTab fits in that stack will depend on how accurately it reads and responds to page context - not just extracting visible text, but understanding what you're actually trying to do on a given page.
HoloTab launched today via HCompany's Hugging Face presence. Given HCompany's positioning in the open-source AI community, it's likely to attract developers and privacy-focused users first before any broader push.