Claude Sonnet 5’s system card spotlights reliability hurdles for production AI agents
Claude Sonnet 5’s system card puts reliability front‑and‑center, devoting most of its 145 pages to evaluations of web browsing, tool use, prompt‑injection defenses and covert behavior. Anthropic’s focus signals that operational robustness, not raw benchmark scores, is the next big hurdle for autonomous agents. Engineers will need fresh infrastructure patterns to keep such agents running safely in production.