A free Slack AI alternative for team chat (2026)

Slack AI brought summaries and search into Slack — but it's a paid add-on, priced per user, on top of a paid Slack plan. If you want AI in your team chat without that bill, here's a free Slack AI alternative: a shared AI agent that lives in your channels.

What Slack AI does — and its catch

Slack AI summarises threads, catches you up, and improves search inside Slack. It's convenient if you're already all-in on paid Slack. The catch is cost: it's an extra per-seat charge, so the more people on your team, the more it adds up.

The free alternative: a shared agent in every channel

Teamski is built around the same channel model as Slack, but the AI is a teammate in the channel, not a paid feature bolted on:

• Free to start, unlimited people on the free plan.
• A shared agent per channel with its own memory — it remembers what the team is doing.
• It can act on your tools (GitHub, Google Sheets, Notion, Linear), not just summarise chat.
• Everyone sees the same answers, so it's genuinely multiplayer.

Honest trade-off

If your whole company already runs on Slack and you just want thread summaries there, Slack AI is the path of least resistance. If you want an AI agent that works in your channels, connects to your tools, and is free for the whole team, Teamski is the alternative worth trying. It also works as your team's main workspace, so you may not need a separate chat tool at all.

Start free with Teamski and put an AI agent in your channels today — no per-seat charge.