Anthropic’s Opus 4.7 safeguards reportedly hinder legitimate use, sparking user complaints

Anthropic's recent release of Opus 4.7, intended to enhance safety and prevent misuse, has reportedly created significant hurdles for legitimate users. The AI model's new, hypervigilant guardrails are reportedly blocking harmless requests, leading to frustration and hindering productivity for developers and researchers, with further coverage provided by The Register.

The issue stems from Opus 4.7's updated Acceptable Use Policy (AUP) classifier, which has triggered a surge in false positives, users say. Users have reported instances where standard software development conversations, computational structural biology tasks, and cybersecurity educational materials are flagged as high-risk.

Complaints on GitHub for Claude Code have escalated dramatically since October 2025, with April 2026 seeing over 30 reports of AUP violations for seemingly benign content. Specific examples include Claude refusing to process Russian prompts, flagging legitimate cybersecurity lab content, and failing to recognize approved cyber use case exemptions when accessed via API.

Source: The Register