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The Madison Avenue Field GuideA field guide to marketing & advertising, by Brandon Mina

GlossaryAI in MarketingSentiment Analysis

AI in Marketing

Sentiment Analysis

Using AI to classify text as positive, negative, or neutral toward a brand or topic.

By Brandon MinaCEO, BrandPilot AIUpdated November 2026

Short answer

Sentiment analysis is the use of AI to classify text as positive, negative, or neutral toward a brand, product, or topic. It is applied to reviews, social media posts, surveys, and support conversations at scale. Marketers use it to track brand perception, detect emerging issues, and measure reactions to campaigns or launches.