Research

Perplexity and Google are not just competing for AI search users. They are competing on completely different monetization models. Benzinga’s coverage from April 15, 2026, highlights the divergence. On one side, Google is rebuilding ads for an AI-first world, integrating advertising into AI Overviews, Shopping, and broader search experiences. On the other side, Perplexity is signaling a future where premium users, not advertisers, drive revenue. That difference is not accidental. Perplexity is betting on a subscription-based, no-ads model for high-value professional research use cases. Google is betting on ads-integrated search for mass-market discovery where advertising is monetization-first. ...

ChatGPT ads just crossed the line from experimental budget to performance-eligible spend. The Information reported on April 15, 2026, that OpenAI plans to start pricing some ChatGPT ads based on whether people click on them rather than just how many people see them. On April 16, Digiday confirmed that the company is building a conversion tracking pixel to tell advertisers what happened after someone saw their ad. Those two developments together change the category from brand-only spend to performance-eligible budgets. Without click-based pricing and conversion tracking, performance advertisers stay away. With both, ChatGPT ads can compete for real budget, not just experimentation dollars. ...

The most important stat in generative engine optimization right now is not how many citations you can earn. It is how long they survive. Amsive’s research, summarized by Salespeak.ai and referenced across multiple industry sources, found that 50% of content cited in AI search responses is less than 13 weeks old. Not 13 months. Thirteen weeks. That finding changes everything about how operators should think about AI visibility. It means the half-life of an AI citation is now shorter than a single quarter. Traditional backlinks decay on multi-year time horizons. AI citations decay on multi-week time horizons. ...

HubSpot launched a tool this week that changes how enterprise buyers think about AI visibility. On April 14, 2026, the company released AEO Grader as a free, no-account diagnostic that scores how brands appear across leading answer engines. The tool evaluates sentiment, presence quality, brand recognition, share of voice, and competitive standing in one quick report. More importantly, HubSpot made it available to everyone without requiring a login or subscription. ...