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Comparison · Collab
Slack vs Tana
A side-by-side editorial comparison of Slack and Tana — release velocity, themes, recent moves, and the top alternatives to consider.
Slack vs Tana: at a glance
What is Slack?
Slack now hosts any A2A agent without Slack-specific code.
Slack's developer channel is almost all agent plumbing. On 10 November Slack became an A2A (Agent2Agent) client: a team hosts its own agent, publishes an Agent Card, and Slack calls it when people talk to it, with no request URL, event handling or Slack-specific logic. This follows Slackbot skills managed through Web API methods, a Slack CLI that points coding agents to the Slack MCP server, and a new requirement that Work Objects embeds allow the slack-mcps.com frame ancestor.
What is Tana?
Tana now records meetings around one laptop and adds Lovable and Ari as agents.
Tana has turned into a meeting workspace: a meeting-timeline Home, live suggestions that draft tasks for approval, research briefs and an iPhone app. October 26 let users bring their own Claude or ChatGPT into calls. The November 12 release captures in-person and hybrid meetings, splits several voices on one microphone into separate speakers, lets users name transcript speakers, and adds Lovable and cfo.ai's Ari as external agents that answer privately inside meetings.
Slack vs Tana: editorial side-by-side
Slack
6.3COMMSCOLLAB
Slack now hosts any A2A agent without Slack-specific code.
◆ Current state
Slack's developer channel is almost all agent plumbing. On 10 November Slack became an A2A (Agent2Agent) client: a team hosts its own agent, publishes an Agent Card, and Slack calls it when people talk to it, with no request URL, event handling or Slack-specific logic. This follows Slackbot skills managed through Web API methods, a Slack CLI that points coding agents to the Slack MCP server, and a new requirement that Work Objects embeds allow the slack-mcps.com frame ancestor.
◆ Where it's heading
Slack is lowering the cost of putting outside agents in front of its users: first skills as code, then MCP pointers for coding agents, now a standard protocol in place of the Slack app model for agents. The platform is positioning itself as the place where agents built anywhere meet the people who use them.
◆ Prediction
Expect more A2A follow-ups, such as agents appearing in Slackbot or skills surfaces and richer Agent Card features, given how fast the agent releases have stacked up since October.
Tana
5.0COLLAB
Tana now records meetings around one laptop and adds Lovable and Ari as agents.
◆ Current state
Tana has turned into a meeting workspace: a meeting-timeline Home, live suggestions that draft tasks for approval, research briefs and an iPhone app. October 26 let users bring their own Claude or ChatGPT into calls. The November 12 release captures in-person and hybrid meetings, splits several voices on one microphone into separate speakers, lets users name transcript speakers, and adds Lovable and cfo.ai's Ari as external agents that answer privately inside meetings.
◆ Where it's heading
Tana is covering every kind of meeting, including the ones where people share a room, and opening its meeting surface to more outside agents. Enterprise admins can now choose which external agents members may use, the governance step that usually precedes a wider agent catalog.
◆ Prediction
Expect more external agents added to the Settings list and agent actions tracked in Work's Waiting on you, as the November release began with status rows for accepted actions.
Slack alternatives
Other Collab products tracked by Sparkpulse, ranked by recent ship velocity. Tap any card for the full editorial trajectory or compare directly with Slack.
Twilio
Twilio's voice AI stops cutting callers off mid-sentence, using its own turn-taking model.
Salesmsg
Salesmsg adds call-back requests and a one-click Emergency Stop for all outbound texts.
Element
Element 1.12.35 follows the call picture-in-picture release with one desktop storage fix.
Krisp
Krisp moves call transcripts and live captions to cloud transcription in KrispCX 2.84.4.
Misskey
Misskey 2026.11 ships: a leaner start script, and Node.js 22 no longer boots.
Tana alternatives
Other Collab products tracked by Sparkpulse, ranked by recent ship velocity. Tap any card for the full editorial trajectory or compare directly with Tana.
Interact
Interact opens its intranet to outside AI assistants and uses Claude to attack its own platform.
Nextcloud
Nextcloud's November patches lean on preview speed and sharing fixes across three branches.
Mattermost
Mattermost v12.1 puts bots and burn-after-reading messages under the same access rules.
Asana
Asana lets Division admins run their own custom roles, on top Enterprise plans only.
Double
Double turns a recorded Chrome session into an agent that repeats the task.
SiYuan
SiYuan 3.8.11 alphas add freeform mind maps and plugin snapshots right after 3.8.10.
Recent activity from Slack and Tana
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 2d agoTanaIn-person and hybrid meetings, and Lovable and Ari in your meetings
- 4d agoSlackBring your A2A agents to Slack ⚡
- 8d agoSlackWork Objects embeds require the slack-mcps.com frame ancestor
- 10d agoSlackSlack CLI 4.13 tells coding agents about Slack MCP and Skills
- 10d agoSlackSlack Skills Plugin installs in Claude Code from its own marketplace
- 12d agoSlackUpdated low-usage submission criteria for Slack Marketplace apps
- 15d agoSlackSlack CLI 4.12.0, the fourth CLI release in October
- 19d agoTanaBring your own Claude or ChatGPT into your meetings
- 23d agoTanaBriefs that research, tasks with due dates
- 1mo agoTanaTana on iPhone and iPad
- 1mo agoTanaLive suggestions in meetings, and a new Home
- 2mo agoTanaHey Tana just does it, a Calendar, and a new Home ⚡
Frequently asked questions
What is the difference between Slack and Tana?
They serve adjacent needs but don't currently overlap on shipped themes. Slack is currently shipping more aggressively (velocity 6.3 vs 5.0), with 1 editorial sparks in the last 30 days against 0. See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.
Is Slack better than Tana?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Slack is currently shipping more aggressively (velocity 6.3 vs 5.0), with 1 editorial sparks in the last 30 days against 0. For your specific use case, the alternatives sections above list other Collab products to evaluate alongside.
What are the best alternatives to Slack?
Top Slack alternatives in Collab are ranked by recent ship velocity. Browse the "Slack alternatives" section above for the current picks, or visit /alternatives/slack for the full list with editorial commentary on each.
What are the best alternatives to Tana?
Top Tana alternatives in Collab are ranked by recent ship velocity. Browse the "Tana alternatives" section above for the current picks, or visit /alternatives/tana for the full list with editorial commentary on each.