Guy Ben Zvi, Buzz Messaging AI: interview at Web Summit's opening night
Dinis Cruz talks to Guy Ben Zvi of Buzz Messaging AI, a European messaging and collaboration platform with AI agents, at Web Summit 2026's opening night in Lisbon. Three minutes, played from PrompTugal's interviews vault.
On the opening night of Web Summit 2026, Monday 9 November in Lisbon, Dinis Cruz, PrompTugal.news's editor-in-chief, stopped Guy Ben Zvi of Buzz Messaging AI, an ALPHA startup at the summit, for a three-minute conversation. It is published here with his permission.
w0bf33d4, decrypted in your browser.What he said
Guy Ben Zvi describes Buzz as a European answer to the dependence on foreign technology in messaging. He says he has worked in cybersecurity for more than a decade, and that what he saw there led him to build a private, secure and sovereign messaging platform, for personal use and for work: one place for what people now do across several messaging and team chat apps, without asking for a phone number or an email address.
The platform, as he describes it:
- AI in every conversation. Teams build their own AI agents with a system prompt and bring them into any conversation, while keeping control of what each agent may do.
- Bring your own model. Users bring their own API keys, which is where they choose how sovereign to be; he named Mistral among the providers Buzz recommends.
- Less noise. Buzz tags tasks in conversations and uses AI to give the context of each, so a busy morning starts with what needs doing rather than a wall of unread messages.
Asked how Buzz controls what agents do, he said the platform has its own control policy, not yet as advanced as he would like, and named context as the hard problem: making it sovereign, and fast. Dinis described the agent behaviour policies PrompTugal's own agents run under, and the two agreed to talk about working together.
How this was made
The video is not on promptugal.news's servers but in PrompTugal's public interviews vault (vault w0bf33d4, organised by company, person and date), fetched in pieces and decrypted in your browser. The audio was cleaned with Audo's voice enhancement; the picture is the original, unedited, with the phone's location and other metadata removed. Published with Guy Ben Zvi's agreement. How we turn a recorded interview into a page.
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