GenAI transforms advertising's core pillars. It enables hyper-personalized creatives at scale, democratizes ad production for smaller businesses, and fundamentally enhances the two most critical functions of any ad platform: predicting user behavior and measuring campaign outcomes.

The true power of AI in marketing is not generating more content, but improving its quality and effectiveness. Marketers should focus on using AI—trained on their own historical performance data—to create content that better persuades consumers and builds the brand, rather than simply adding to the noise.

The traditional "test and learn" mantra is flawed because teams often start with a weak set of creative variants. By using predictive AI to generate a diverse but pre-vetted, high-performance set of options, marketers can ensure their tests are more meaningful and aren't just optimizing a bad strategy.

In an analysis of 50 past email campaigns, ChatGPT's 5.2 model correctly identified the winning A/B test variation 89% of the time without performance data. Marketers can use this predictive capability to vet campaign elements like subject lines and creative before launching live tests, potentially saving time and resources.

The primary role of AI in marketing isn't to replace creative work but to automate the complex process of understanding customer behavior. AI systems continuously analyze data to answer critical questions about conversion, value, and budget waste, freeing up humans for strategic tasks.

While AI tools dramatically increase content production speed, true ROI is not measured in output. Leaders should track incremental engagement, conversion lift, and revenue per message. An often overlooked KPI is brand consistency—how often content passes governance checks on the first try.

Pega's CTO advises using the powerful reasoning of LLMs to design processes and marketing offers. However, at runtime, switch to faster, cheaper, and more consistent predictive models. This avoids the unpredictability, cost, and risk of calling expensive LLMs for every live customer interaction.

Instead of asking an AI tool for creative ideas, instruct it to predict how 100,000 people would respond to your copy. This shifts the AI from a creative to a statistical mode, leveraging deeper analysis and resulting in marketing assets (like subject lines and CTAs) that perform significantly better in A/B tests.

Asking an AI to 'predict' or 'evaluate' for a large sample size (e.g., 100,000 users) fundamentally changes its function. The AI automatically switches from generating generic creative options to providing a statistical simulation. This forces it to go deeper in its research and thinking, yielding more accurate and effective outputs.