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Comparison · Collab
Guru vs Slack
A side-by-side editorial comparison of Guru and Slack — release velocity, themes, recent moves, and the top alternatives to consider.
Guru vs Slack: at a glance
What is Guru?
Guru's Knowledge Agents get the plumbing that makes their answers checkable and safe.
Guru's late-October releases all serve the Knowledge Agent. Agents can now return the records behind an analytical answer, read SCIM-provisioned profile attributes such as department and manager, and choose from sources admins can rename. On the governance side, DLP masking now covers what users type before it is logged or sent to the LLM, and each agent gets its own chat retention window of 1 to 90 days.
What is Slack?
Slack lets companies manage Slackbot skills from code and CI, not only by hand
Slack's developer channel in October was mostly agent plumbing and tooling. Slackbot skills can now be created and managed through Web API methods, built from markdown instructions or existing canvases and kept current from CI. Slack Code for developers lets agents open ephemeral channels from an existing conversation as a shared workspace with people. Around that sit a new Block Kit layout block and four Slack CLI releases that shipped without descriptive notes.
Guru vs Slack: editorial side-by-side
Guru
5.0COLLAB
Guru's Knowledge Agents get the plumbing that makes their answers checkable and safe.
◆ Current state
Guru's late-October releases all serve the Knowledge Agent. Agents can now return the records behind an analytical answer, read SCIM-provisioned profile attributes such as department and manager, and choose from sources admins can rename. On the governance side, DLP masking now covers what users type before it is logged or sent to the LLM, and each agent gets its own chat retention window of 1 to 90 days.
◆ Where it's heading
The arc runs from giving agents write access to making them auditable. Mid-October brought a rebuilt Teams app with AI answers, MCP image uploads into card drafts and answer editing for skills-based agents; late October shifted to data controls and to answers that show their workings. Guru is treating the agent as the main interface and the card base as what it works on.
◆ Prediction
Expect the stated Mermaid gap in Slack, email and exports to close, and more per-agent settings in the Guardrails section where retention now sits.
Slack
5.0COMMSCOLLAB
Slack lets companies manage Slackbot skills from code and CI, not only by hand
◆ Current state
Slack's developer channel in October was mostly agent plumbing and tooling. Slackbot skills can now be created and managed through Web API methods, built from markdown instructions or existing canvases and kept current from CI. Slack Code for developers lets agents open ephemeral channels from an existing conversation as a shared workspace with people. Around that sit a new Block Kit layout block and four Slack CLI releases that shipped without descriptive notes.
◆ Where it's heading
The agent build-out that produced MCP client support and Slack Code is now getting administration surfaces: skills are becoming something an organization deploys and versions rather than configures in a UI. The SDKs added container and task_card layout blocks at the start of October, ahead of the layout block reaching Block Kit, so UI primitives for agent output are arriving in the libraries first.
◆ Prediction
Expect the Java, Python and Node SDKs to add the Slackbot skills methods and the new layout block, following the pattern of the October 1 SDK releases. The CLI notes give no hint of what changed, so its direction is unclear.
Guru alternatives
Other Collab products tracked by Sparkpulse, ranked by recent ship velocity. Tap any card for the full editorial trajectory or compare directly with Guru.
Hive
Hive turns dashboards into a place to run apps, and lets AI Proofing read SharePoint guidelines.
Prowlarr
Prowlarr adds Trusted Networks and host validation, then moves to 2.7
Lidarr
Lidarr starts a 3.2 pre-release while 3.1 gains host and network checks
Dropbox Sign
Dropbox Sign's API can now check a PDF's fields before a signature request goes out
Paperless-ngx
Paperless-ngx shipped seven releases in October, two of them for security
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.
Misskey
Misskey moves to Sentry v11 and keeps shipping security fixes in its monthly releases.
Apprise
Apprise 2 is out: notify() returns a result object, and 2.1 takes the catalog to 170 services.
RSS.com
RSS.com's changelog is back after ten months, with listener voicemail for podcasts.
mailcow
mailcow's monthly releases are mostly upstream security updates with small UI work
The Lounge
The Lounge ships steadily but publishes release notes that say nothing.
Mailu
Mailu's October: patched PHP for webmail, and a resolver that reports DNS failures
Recent activity from Guru and Slack
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 3d agoGuruRename Sources and Folders or Drives
- 3d agoGuruKnowledge Agents Can Now Return the Records Behind the Numbers
- 3d agoGuruSCIM Now Fills in Guru Profile Attributes
- 3d agoSlackSlack CLI 4.12.0, the fourth CLI release in October
- 4d agoSlackNew Block Kit layout block
- 5d agoSlackSlackbot skills API methods are here!
- 7d agoGuruMermaid diagrams in cards and Chat
- 7d agoGuruSet chat thread retention for each Knowledge Agent
- 7d agoGuruDLP masking now covers what users type
- 11d agoSlackSlack CLI 4.11.0 ships with no change notes
- 20d agoSlackSlack CLI 4.10.0 ships with no change notes
- 26d agoSlackSlack Code for developers
Frequently asked questions
What is the difference between Guru and Slack?
They serve adjacent needs but don't currently overlap on shipped themes. Guru and Slack are shipping at a similar cadence (velocity 5.0 vs 5.0, both within Sparkpulse's "active" band). See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.
Is Guru better than Slack?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Guru and Slack are shipping at a similar cadence (velocity 5.0 vs 5.0, both within Sparkpulse's "active" band). For your specific use case, the alternatives sections above list other Collab products to evaluate alongside.
What are the best alternatives to Guru?
Top Guru alternatives in Collab are ranked by recent ship velocity. Browse the "Guru alternatives" section above for the current picks, or visit /alternatives/guru for the full list with editorial commentary on each.
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.