Mio

Mio is a Slack-native AI coworker that lives inside the channels a team already uses. Users tag @mio to hand off recurring work like answering questions about company context, preparing meetings, shipping weekly briefs, and taking action across integrations including Notion, Linear, Google Workspace, GitHub, and HubSpot. In the launch video, the team describes using it for bug fixes, user behavior analysis, flagging accounts at risk of churn, and optimizing ad campaigns. The launch marks Mio's emergence from stealth alongside a €1.9 million ($2.2 million) pre-Seed round co-led by Topology.vc and Fabric.vc, with Casey Caruso and Windy Chester leading their firms' checks. Founded in 2025 by repeat entrepreneur Arthaud Mesnard , the Paris-based company positions Mio as a colleague that connects to existing tools, learns how a company operates over time, and executes work rather than only suggesting it. Mio is model-agnostic, combining different AI models for different tasks rather than locking customers into a single provider. The timing matters because agent products are moving from standalone chat interfaces into the surfaces where work already happens, and Slack is a natural entry point for that shift. Mio reports that over 100 companies, from early startups to Series B scale-ups, are already using it daily , and early-access customers save an average of 8.2 hours per week through workflows like morning briefs, meeting recaps, CRM updates, reporting, and engineering tasks. It is free to start at mio.xyz.