Salesforce, which paid $27.7 billion for Slack, is promoting Anthropic's Claude Tag inside Slack, causing confusion among its own employees who cannot tell where Salesforce's AI ends and Anthropic's begins. When Anthropic rolled out Claude Tag last month—an AI agent that lives permanently inside Slack channels—Salesforce promoted it across social media, despite the tool competing with Slackbot and Agentforce. Slack customers can now choose between Slackbot, Agentforce agents, and Claude Tag. Salesforce spent years developing Slackbot, which runs on Anthropic's Claude technology, and in March announced over 30 new AI features for it. Claude Tag offers a parallel experience, allowing users to type @Claude in any channel. Salesforce expects to spend roughly $300 million on Anthropic tokens this year and holds about a 1% stake in Anthropic, now valued at $380 billion. CEO Marc Benioff has called Slack "the interface to AI" and framed the platform as model-agnostic, with Anthropic as the first LLM provider fully sealed inside the Salesforce trust boundary.