The best AI marketing 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: Seven role-based AI employees, from inbox to receptionist

Marblism is the best value for role-based help: seven AI employees, including a phone receptionist, for $24 a month on annual billing, with unlimited businesses and team members. Each role is shallower than a dedicated tool, it doesn't live in your team's chat, and a 50-hour monthly cap limits heavy use.

Role it fills: Assistant across Gmail, Docs, Sheets, Meet and Chat

For a Google Workspace team, Gemini is the best value here because it's already in the plan you pay for. Like Copilot, it's an assistant inside your documents more than a teammate you delegate whole jobs to, and it isn't built to act outside Google's apps.

Role it fills: Autonomous agent team that builds and markets a company

Polsia's agents work every day without being asked, which makes it one of the most autonomous coworkers here. But you manage it from its own dashboard rather than your team's chat, and the fine print is heavy: 3% of your customer payments, 20% of your ad spend, no refunds, and credits charged for fixing its own bugs.

Role it fills: Twelve AI helpers for social, email and content

Sintra is an easy, inexpensive content team for social posts and email. It doesn't live in your team's chat or act much beyond content, its 250 monthly credits run out quickly, and Trustpilot withholds its rating over review incentives.