Inside Salesforce, a quiet anxiety has taken hold: the company’s own messaging product, Slack, is becoming the front door for a rival’s AI, and employees increasingly worry the arrangement is giving away the store. The Information reported this week that as Anthropic’s products have embedded themselves deeply into the Slack ecosystem, Salesforce staff have begun to question whether the company is lending its most valuable distribution channel to a competitor.
The concern has a specific shape. Slack is where a large share of enterprise work now happens, and it has become the natural home for AI assistants that can read conversations, summarize threads and draft replies. Anthropic’s Claude has integrated with Slack in ways that make it one of the most visible AI products in the workplace, adopted by a wide range of enterprise customers who use it daily. For Salesforce, which bought Slack in 2021 for $27.7 billion, the worry is that every hour employees spend with Claude in Slack is an hour they are not spending with Salesforce’s own AI offerings.
The tension is structural. Slack’s value to Salesforce depends on being open: customers connect their tools, bots and data sources, and the platform’s usefulness grows with the number of integrations. That same openness makes it an ideal channel for Anthropic, which can reach millions of workers without owning a collaboration product of its own. Salesforce cannot easily close the door without breaking the product’s appeal, and it cannot ignore the traffic that Anthropic generates without forgoing the engagement that makes Slack valuable in the first place.
Salesforce has its own AI strategy, built around its Agentforce platform and the Einstein assistant, and it has invested heavily in making those products work inside Slack. But employees and some customers say the in-house tools have struggled to match the polish and adoption of the Anthropic integration, according to people familiar with the situation. The gap is visible in usage numbers that are tracked internally, these people said, and it has become a topic of debate in product reviews, where teams weigh whether to improve the native experience or accept that third-party tools will carry the category.
The awkwardness is compounded by competition at the corporate level. Salesforce and Anthropic are not simply vendor and partner; they are increasingly rivals for the same enterprise AI budgets, and their roadmaps overlap in areas such as agentic assistants and automated workflows. Salesforce has hedged by partnering with multiple AI providers, including OpenAI, but the Anthropic integration inside Slack operates at a depth that the others do not match, which is exactly what makes it uncomfortable. The company is effectively funding the distribution of a product that competes with the products it is trying to sell.
Analysts said the situation illustrates a broader problem for platform companies in the AI age: the platforms that win distribution may not win the intelligence layer, and the two layers can belong to different companies. “The collaboration surface and the model are separating,” one enterprise software analyst said. “Whoever owns the surface is tempted to think they own the relationship. The model provider is quietly taking the relationship and leaving the surface behind.”
For Anthropic, Slack has become a distribution asset that no amount of marketing could buy. Workplace AI adoption has been driven less by CIO mandates than by individual employees installing tools that make their jobs easier, and Slack integrations are among the most common entry points. Claude’s presence in the app gives the company a daily audience of millions of workers and a stream of real-world usage data that feeds product development, a feedback loop that is hard to replicate from outside the app.
For Salesforce, the options are limited. The company could tighten the integration’s capabilities, but doing so would anger customers and invite comparisons to the walled-garden strategies it has criticized in rivals. It could accelerate its own AI roadmap, but catching up takes time in a market that moves quarterly. Or it could accept the arrangement and compete elsewhere, betting that the relationship layer Salesforce controls, the customer data and the deal structure, will ultimately matter more than the model underneath. That is a bet on inertia, and enterprise software has historically rewarded the company that owns the data.
The concern echoes an older debate inside Salesforce about Slack’s strategic role. The acquisition was criticized from the start as expensive, and Salesforce later wrote down a portion of the purchase price as Slack’s growth slowed, a decision that became a symbol of the company’s broader struggles. The AI boom has revived Slack’s relevance, but the revival has come with the realization that the product’s biggest commercial opportunity may belong to whoever sits inside it, not whoever owns it. That is the arithmetic driving the internal anxiety, and it is not easily resolved by a roadmap update.
Executives at Salesforce have publicly welcomed AI providers to Slack, describing the ecosystem as a place where the best tools should win. Privately, according to people who have attended internal meetings, the tone is more complicated: the company knows it is hosting a competitor in its most visible product, and it is still deciding whether that is a strategy or a problem.
