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AnnouncementAWS Machine Learning Blog4 November 2026

AWS adds steadier pass-or-fail scoring for checking your AI assistants' work

Why it matters

Teams testing AI assistants can score policy and safety checks with a consistent number, so approval thresholds stop shifting between runs.

Ask your team

Which of our AI assistant checks are yes-or-no questions we could score with a fixed threshold?

What happened

AWS now lets Evaluations use , which pick from a fixed set of answers and give a calibrated probability for each. They suit narrow checks such as policy compliance, tool-call safety and whether an answer matches retrieved context.

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