OpenAI's o3 reasoning model becomes widely available, Google expands its AI Mode to more users with new link designs, and fresh click-share data reveals how GEO is reshaping organic traffic distribution across industries.

In this episode:

• OpenAI's o3 reasoning model now available to all ChatGPT Plus and Pro users, with a 2x improvement in coding and math benchmarks

• Google AI Mode rolls out to 20% of US users, featuring redesigned prominent links within AI-generated answers

• New click-share data shows top-cited AI answers capture 3x more engagement than position-one organic results in finance and health verticals

• ChatGPT's 'fan-out' query architecture explained — how one user prompt generates up to 20 sub-queries behind the scenes

• Perplexity launches an advertising API allowing brands to bid for inclusion in AI-generated answer citations