# Why $9 Gets You a Broken App and $200 Gets You a Working One - slug: why-9-gets-you-a-broken-app-and-200-gets-you-a-working-one - date: 2026-04-04 - category: Artificial Intelligence Anthropic spent months building an adversarial evaluator to catch what solo agents miss: a solo Claude praised its own broken app’s elegant design. The fix cost $200. ---