Does Slack AI train on your data?

Yes

Salesforce · Productivity

No. Slack AI does not train its models on your content by default, and its business tier (Enterprise Grid (Slack AI is a paid add-on on paid plans; admins can scope AI features)) keeps your data out of training.

What we checked

This assessment separates the consumer product from any business plan. It uses the vendor documents linked below; an unverified item is not a pass.

Default data training: No by default; Slack states Customer Data is never used to train third-party LLMs, and generative AI models are not developed using Customer Data; this applies across tiers (Slack AI is not offered on free/consumer tiers).
Business-tier training: No by default; For paid/enterprise use, Slack AI uses off-the-shelf LLMs hosted within Slack's own AWS trust boundary that do not retain or train on Customer Data, using RAG to send only inference-time data.
Training control: Not verified; No reliable training opt-out was confirmed in the sources reviewed for this profile.

Practical risk: The 'no training' guarantee covers generative LLMs, but Slack's non-generative machine-learning features have historically processed customer messages on an opt-out (not opt-in) basis, so admins must proactively review AI/ML data settings rather than assume default protection.

How to make a decision

Check the precise account tier, written contract and intended data before approving Slack AI. A security certification, DPA or setting can apply to only part of a vendor's service. Keep the source links with your supplier review and revisit them when the vendor changes its terms.

More on Slack AI

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See the full Slack AI risk profile, with every data-handling fact and its source, or browse all rated AI tools.