Customers cannot use the API to build a competing AI product, train rival models, resell access, or reverse engineer the Services without Anthropic's explicit approval.
This analysis describes what Anthropic's agreement states, permits, or reserves. It does not constitute a legal determination about enforceability. Regulatory applicability and practical outcomes may vary by jurisdiction, enforcement context, and individual circumstances. Read our methodology
The use restrictions prohibit a range of competitive and derivative activities, including training competing AI models using the Services, which directly limits how businesses can use API access in developing their own AI capabilities.
Interpretive note: The term 'competing product or service' is not defined in the agreement, creating interpretive uncertainty about the restriction's scope in relation to adjacent AI development activities.
Business customers are contractually prohibited from using the API to train competing AI models, build competing services, resell API access, or reverse engineer the Services; violation of these restrictions can trigger account suspension and termination under Section I.
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"Customer may not and must not attempt to (a) access the Services to build a competing product or service, including to train competing AI models or resell the Services except as expressly approved by Anthropic; (b) reverse engineer or duplicate the Services; or (c) support any third party's attempt at any of the conduct restricted in this sentence.Excerpt from Anthropic's Commercial Terms
REGULATORY LANDSCAPE: Use restriction clauses in commercial API agreements are governed by general contract law; in the US, restrictions on competitive use may interact with antitrust law if applied to foreclose market competition, though contractual …
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The use restrictions prohibit a range of competitive and derivative activities, including training competing AI models using the Services, which directly limits how businesses can use API access in developing their own AI capabilities.
Business customers are contractually prohibited from using the API to train competing AI models, build competing services, resell API access, or reverse engineer the Services; violation of these restrictions can trigger account suspension and termination under Section I.
ConductAtlas has identified this type of provision across 263 platforms. See the full comparison.
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