kapynAI / Models

Opus 5 may have solved browser-based prompt injection, the biggest security flaw haunting AI agents

Opus 5 eliminates browser-based prompt injection across rigorous developer test scenarios. The new model combined with Auto Mode achieves a zero percent vulnerability rate against malicious web prompts. This breakthrough removes a critical security barrier preventing autonomous AI agents from safely operating inside web browsers.

The Decoder·Jul 25, 2026

Opening Kapyn…