The best free AI coworkers

Role it fills: Runs the business: site, sales, support and marketing

For a small team that wants one AI teammate to take work off everyone's plate, Crevio covers the most ground of anything we rank. It doesn't stop at drafting: it acts in the business, on a schedule or when something happens, like a new order or an inbound email, and it asks before anything consequential. The tradeoffs are credit-based billing that rises with use, a 2.5% fee on sales you take through it, no Microsoft Teams app, and a younger company with fewer public reviews than the big names.

Role it fills: Generalist teammate for reports, ops, outreach and internal apps

Viktor is the best pure AI coworker for a team that already runs on Slack or Teams. It has excellent reviews, no per-seat fees, and real controls: each tool can run automatically or ask first, with approve and reject cards in the channel. It's built for teams with an existing stack, not for running a website or taking customer payments, and long background tasks can burn credits quickly.

Role it fills: Generalist teammate for research, writing, analysis and code

Claude is the strongest thinker on this list for the price of a seat, and Claude Tag makes it a genuine Slack teammate that remembers channel context and can pursue work over days. It works through connectors rather than owning parts of the business, scheduled tasks run on a clock rather than on events, and Tag is still in beta.

Role it fills: Generalist assistant for research, writing and analysis

ChatGPT Business is the familiar default: everyone already knows how to use it, and seats are cheap. As a coworker it's mostly something people go to rather than something that works among them: it reads from Slack and email through connectors but doesn't sit in your channels or act in the business on its own.

Role it fills: Assistant across Outlook, Teams, Word, Excel and PowerPoint

If your company runs on Microsoft 365, Copilot is the natural pick: it already knows your files, mail and meetings, it works inside Teams, and it comes with enterprise-grade security. It's an assistant more than a teammate. It's best at drafting and summarizing, its more autonomous features cost extra by usage, and it does nothing outside the Microsoft world.

Role it fills: Build company-specific agents on your docs and tools

Dust is the best build-your-own option for teams that want agents grounded in their own documents and available in Slack. You design the coworkers yourself, which takes time, and prices are in euros.

Role it fills: Ava, an AI sales rep for outbound email

Artisan is a focused, controllable AI SDR for outbound email, with human-in-the-loop approvals built in. Third-party reports put self-serve plans at about $250 to $280 a month for the smallest tier, with mailboxes billed separately. It's a sales hire, not a general teammate.

Role it fills: Meeting notes and search across meetings, email and chat

Read AI is a strong, cheap meeting teammate with a real free plan. It remembers what was said, but it doesn't go and do the follow-up work.

Role it fills: General agent for research and building sites or apps

Manus is capable at one-off projects, from research reports to a working web app. As a coworker it's thin: it doesn't sit in your team's chat, it doesn't keep working on a schedule, and its Trustpilot reviews, mostly about billing and support, are among the worst here.