Vivun

Vivun is an AI teammate built for sales. It joins live sales calls, transcribes what's happening, and watches for the moments a rep might miss — then surfaces a suggested response right on screen. If a new stakeholder appears, it can research that person and offer a concrete next line. It also updates the CRM and drafts follow-up messages, so the work after a call is already started when the call ends.

Vivun uses what the company calls a Sales Reasoning Model: years of knowledge from elite sellers turned into structured reasoning rather than generic chatbot guesses. That means the suggestions are specific to sales situations — handling a new stakeholder, knowing what matters to a buyer, or deciding who should co-present in a follow-up. The tool connects to calendars and CRMs, and supports MCP for deeper integrations. A whisper mode gives reps an instant answer they can use immediately, instead of promising to follow up later.

The tool is most useful for sales reps, sales managers, and enterprise teams that live in high-stakes calls. It helps during live discovery and demos, surfaces research before meetings, and automates the busywork after them — updating records and drafting follow-ups. If your team's biggest leak is the awkward pause or the forgotten next step, Vivun is aimed directly at that problem.