Anthropic Starts Billing Some Claude Refusals as It Tightens Anti-Distillation Controls

Anthropic’s Claude documentation now says some requests blocked before any model output will still be billed when they trigger biology, frontier-LLM-development, or reasoning-extraction safeguards. The change turns selected no-output refusals into chargeable events across the Claude API, Amazon Bedrock, Claude Platform on AWS, Google Cloud, and Microsoft Foundry, with the request billed at the rate of the model that ran it.