7 Best Mio Alternatives in 2026 (Slack AI Coworkers & Beyond)
Mio (mio.xyz) is a Paris startup that emerged from stealth on July 15, 2026 with €1.9M in pre-seed funding, co-led by Fabric.vc and Topology.vc and founded by repeat entrepreneur Arthaud Mesnard. Its pitch — “Just @mio, it’s handled” — is a Slack-native “AI coworker”: you @-mention it in any channel and it preps meetings, sends daily briefs and weekly recaps, triages, and takes actions across a claimed 3,000+ integrations. It’s free to start, lists SOC 2 Type 2 as in progress, and has no published pricing tiers yet.
The appeal is that Mio lives where your team already talks instead of being one more app to open. The trade-off is the same thing: an @-mention bot inside Slack can only help the people and work that live in Slack. If your company isn’t Slack-first, or a big share of your work is external email and calendar with clients, an in-channel bot can’t run your inbox or book your meetings. Pricing is also undisclosed, and Mio launched today, so it’s early. If you want an AI teammate that knows your company’s context but reaches you where you actually work, here are seven alternatives.
A quick disambiguation: several unrelated products share the “Mio” name. This page is about the new mio.xyz Slack AI coworker. It is not m.io (Message.io), the still-operating chat-interoperability company that syncs Google Workspace, Microsoft 365, Slack, and Zoom — note it routes through Google or Zoom and does not offer a direct Slack↔Teams bridge. It is also not Mio the AI phone assistant (launched February 2026, makes and answers phone calls by text), nor PixAI’s “Mio.2” anime art assistant. If you came here for one of those, follow the links above.
1. Carly
Carly is a purpose-built AI executive assistant you reach over email and text — no Slack required. It connects directly to your email and calendar to triage and draft mail, schedule and reschedule meetings, send daily briefings, record meetings, keep a contacts/CRM record, and manage tasks with time-blocking — across both Gmail and Outlook/Microsoft 365.
What makes it different from Mio: Mio lives inside Slack, so it helps the work that happens in Slack. Carly works where a lot of real executive work actually happens — email and calendar, on both the Google and Microsoft stacks — so it can run an inbox and book meetings with people outside your company, which an @-mention bot can’t. It has 70+ native integrations plus BYO-key options, a free no-signup group-availability grid for coordinating across people, is generally available, and has public pricing rather than Mio’s undisclosed tiers.
Best for: Executives and teams who want dependable inbox and calendar help wherever email happens, not only inside Slack.
Pricing: starts at $35/month
2. Dust
Dust is a Paris-built platform for custom AI agents grounded in your company data — it connects to sources like Google Drive, Notion, GitHub, and Slack, and lets teams build agents that answer questions and take actions across that knowledge. It’s the closest structural comparison to Mio: same city, same “agents that know your company” premise.
What makes it different from Mio: Dust is an agent-building platform with its own workspace, surfaced in Slack as one channel among several, rather than a single Slack-native bot. It serves 3,000+ organizations and has published, credit-metered pricing — Free, Pro at $30/user/month, and Max at $150/user/month — where Mio’s tiers are undisclosed.
Best for: Teams that want to build and customize their own company-context agents, not just @-mention one.
Pricing: Free / Pro from $30 per user/month / Max $150 per user/month
3. Claude for Slack
Anthropic’s Claude Tag is an always-on Claude that lives in Slack as an AI teammate. You add it to selected channels, connect tools and data, and anyone can @Claude to delegate a task; it breaks the work into stages, runs its tools, and replies in-thread. It’s multiplayer (one shared Claude per channel), learns context over time, and can work proactively — a very direct answer to Mio’s “AI coworker in Slack” pitch.
What makes it different from Mio: Claude for Slack is Anthropic’s own model running natively in Slack, backed by Claude’s reasoning, and it’s available in beta to Claude Enterprise and Team customers. Like Mio it’s Slack-bound — the same reach limits apply once work moves to external email or calendar.
Best for: Teams already on Claude Enterprise/Team who want a Slack-native agent from the model maker itself.
4. Glean
Glean is an enterprise “Work AI” platform: it indexes your company’s apps and documents, then answers questions and runs agents grounded in that context, with a Slack assistant among its surfaces. It’s the enterprise-scale version of the company-context promise Mio is chasing.
What makes it different from Mio: Glean is built for large organizations — deep permissions-aware search across the whole company knowledge base — and prices accordingly. It doesn’t publish pricing; reported seat costs commonly run ~$50+ per user/month with sizable enterprise minimums, far heavier than a free-to-start Slack bot.
Best for: Larger enterprises that want company-wide search and agents, not a single lightweight channel bot.
Pricing: Custom / enterprise (not published)
5. Town
Town gives you a “Townie” AI assistant with its own @town.com address that you message on Slack, WhatsApp, or Telegram, and it executes across your apps. It ships pre-built routines like morning briefings, contact research, and newsletter digests, and recently raised a $55M Series A from a16z and Forerunner.
What makes it different from Mio: Town is multi-surface rather than Slack-only — you can reach it over WhatsApp and Telegram too — and it connects to 50+ tools with a permanently free plan (30 chats/month) and published credit-based pricing. Note it’s Google-only for email and calendar, with no Outlook/Microsoft 365 support.
Best for: Individuals who want a personal assistant reachable across chat apps, on the Google stack.
Pricing: Free plan / credit-based paid tiers
6. Lindy
Lindy is an AI executive assistant and agent builder, reachable over iMessage, that drafts replies, sorts mail, books meetings, and chains steps into multi-step workflows.
What makes it different from Mio: Lindy centers on inbox and calendar work through direct integrations and a workflow builder, rather than living inside Slack. It’s generally available with usage-based pricing.
Best for: People who want an EA with automation depth they can extend into custom workflows.
7. Zapier Agents
Zapier Agents lets you build AI agents on top of Zapier’s automation layer, delegating tasks that run across its 8,000+ app integrations — including posting to and reading from Slack.
What makes it different from Mio: Where Mio is a conversational bot inside Slack, Zapier is an automation platform — its agents are strongest at triggered, cross-app workflows rather than open-ended channel chat. Agents are included in paid plans, which start at $29.99/month. See best AI workflow automation tools.
Best for: Teams that want agent-driven automation across a huge catalog of apps.
Pricing: Free / paid from $29.99/month
Mio Alternatives Compared
| Tool | Primary surface | Outlook/M365 | Company-context model | Generally available | Starting price |
|---|---|---|---|---|---|
| Carly | Email + text | Yes | Direct API to your inbox/calendar | Yes | $35/mo |
| Mio | Slack | Unclear | Slack-native bot | New (launched today) | Free to start (tiers undisclosed) |
| Dust | Own workspace + Slack | Via connectors | Custom agents on company data | Yes | From $30/user/mo |
| Claude for Slack | Slack | No | Slack-native teammate | Beta (Enterprise/Team) | Add-on to Claude plan |
| Glean | Web + Slack | Via connectors | Enterprise search + agents | Yes | Custom (not published) |
| Town | Slack/WhatsApp/Telegram | No (Google-only) | Cross-app personal assistant | Yes | Free / credits |
| Zapier Agents | Automation platform | Via connectors | Cross-app workflows | Yes | From $29.99/mo |
Slack-native coworker vs. email-first assistant
Mio, Claude for Slack, and Dust all bet that the AI teammate should live where the team already chats. That’s genuinely useful for internal, in-channel work — standups, doc updates, pulling status from connected tools — because the context and the people are right there. The limit is structural: a Slack bot’s world is Slack. It can’t triage a client thread in your inbox, negotiate a meeting time with someone outside your company, or defend focus time on your calendar, because that work never enters a channel. It also only reaches teammates who live in Slack, and many companies run on Microsoft 365 and Teams instead.
An email-first assistant like Carly inverts the bet. It connects directly to Gmail and Outlook via API, so the surface it operates on is your actual inbox and calendar — where a large share of external, client-facing, scheduling-heavy work already happens — on both the Google and Microsoft stacks. The right question isn’t “Slack or email,” it’s where the work you most want handled actually lives. If that’s internal team chatter, a Slack coworker fits. If it’s your inbox and calendar, you want an assistant that runs those directly.
More: Best AI executive assistants · Best AI personal assistants · Town alternatives · What are AI agents · Mio’s Slack AI launch
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