The AUP prohibits using any outputs generated by Anthropic's models to train other AI models, including through distillation or scraping techniques, unless the user has received prior authorization from Anthropic.
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
This provision directly restricts a common developer workflow in which API outputs are used as training data for fine-tuning or building derivative models, and requires affirmative advance authorization from Anthropic before any such use is permitted.
The updated policy clarifies that Anthropic's acceptable use rules apply to all users of its products and services, including API developers, cloud customers, and app users. The policy now explicitly prohibits weapons development and related activities, and introduces a Cyber Verification Program allowing researchers to apply for adjusted safeguards for authorized dual-use work. Enforcement procedures now include warnings and throttling in addition to suspension or termination. You can apply for the Cyber Verification Program or Life Sciences Verification Program if your work involves authorized dual-use or high-risk use cases covered by real-time safeguards.
View change record →⚠ The terms will apply as written, and use of model outputs for AI training without authorization is treated as a platform abuse violation, subject to account throttling, suspension, or termination.
Cross-platform context
See how other platforms handle Prohibition on Training AI Models Using Outputs and similar clauses.
Compare across platforms →"Use outputs to train an AI model (e.g., "model scraping" or "model distillation") without prior authorization from AnthropicExcerpt from Anthropic's API Usage Policy
1) REGULATORY LANDSCAPE: This provision engages intellectual property law, particularly copyright as applied to AI-generated outputs and the permissibility of using such outputs as training data, an area subject to active litigation and regulatory uncertainty …
Enforcement risk, jurisdiction flags, contract triggers, and due diligence action items.
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This provision directly restricts a common developer workflow in which API outputs are used as training data for fine-tuning or building derivative models, and requires affirmative advance authorization from Anthropic before any such use is permitted.
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