Anthropic has released an open-source tool called Bloom to test how AI models behave under normal and stressful conditions. Bloom automates behavioural testing by generating scenarios, running them at scale, and scoring responses for traits like bias or sycophancy. Anthropic says it simplifies a process that was previously manual and time-consuming.Anthropic has released an open-source tool called Bloom to test how AI models behave under normal and stressful conditions. Bloom automates behavioural testing by generating scenarios, running them at scale, and scoring responses for traits like bias or sycophancy. Anthropic says it simplifies a process that was previously manual and time-consuming.