Users report that the reverse engineering capabilities of the Claude Opus 5.5 model, released on September 22, have been restricted. While Anthropic has not issued an official statement, the changes follow a series of updates pushed to Claude products on October 21.
According to community reports on Reddit, the model now triggers safety filters when tasked with reverse engineering content protected by intellectual property rights. In some instances, the AI halts responses mid-generation, citing security verification protocols.
Some users suggest that the model's performance in reverse engineering has always been inconsistent due to sensitive classifiers. However, observers note that Anthropic frequently adjusts model behavior without providing formal patch notes or public announcements.
Industry analysts link these restrictions to recent high-profile incidents involving the use of AI to modify firmware, such as the case involving Samsung television microphones. Other factors likely include the use of Claude to port games to browsers and reverse engineer commercial software.





