We’re releasing Bloom, an open-source tool for generating behavioral misalignment evals for frontier AI models. Bloom lets researchers specify a behavior and then quantify its frequency and severity across automatically generated scenarios. Learn more: https://t.co/TwKstpLSy3
Anthropic Open-Sources Bloom for Automated AI Misalignment Testing
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Anthropic open-sourced Bloom, a tool for generating behavioral misalignment evaluations. Specify a behavior you want to test for - deception, sycophancy, or any concern - and Bloom automatically creates scenarios to quantify how frequently the model exhibits it and how severe each instance is.
Eval creation is one of the bottlenecks in AI safety research. Hand-crafting test cases is slow and misses edge cases. Bloom automates scenario generation, letting researchers focus on defining what behaviors matter rather than manually writing thousands of test prompts. It's infrastructure that makes safety research more systematic.
Bloom turns behavioral hypotheses into quantified measurements - from defining the target behavior to automated scenario generation and severity scoring.
Anthropic
@AnthropicAI
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