What is StackScore™?

A StackScore is the 0–100 rating StackIndex assigns to an AI tool, produced from four weighted intelligence layers and capped by an evidence-based confidence value. StackScore Tools™ rates AI tools; StackScore News™ classifies AI news stories by credibility. A StackScore measures a tool's operational, trust, market, and infrastructure strength for buyers — it is not a customer-sentiment or review-aggregation score.

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