Research

Content Formats That Earn AI Citations (HubSpot State of AEO)

Published August 7, 2026 · Adam Rock

Key Findings (HubSpot State of AEO, 2026)

HubSpot analysed which content formats earn citations across ChatGPT, Gemini, Google AI Overviews and Perplexity. The per-engine leaders:

  1. Google AI Overviews: blog posts lead, at a 42% citation rate.
  2. Gemini: blog posts lead, at 76%.
  3. ChatGPT: comparison content leads, at 95% (narrowly edging out press releases at 92%).
  4. Perplexity: product listings and landing pages lead, at 84%.

Source: https://blog.hubspot.com/marketing/content-format-types-that-earn-citations

The findings also identify structural elements correlated with citation: statistics and data, visible last-updated dates, author bios, and FAQ sections with schema. Every content type measured on ChatGPT scored highly, so read the 95% as a relative ranking rather than an absolute ceiling.

What This Means

Frequently Asked Questions

What content format gets cited most by AI?

It depends on the engine. Per HubSpot's analysis, blog posts lead in Google AI Overviews (42% citation rate) and Gemini (76%), comparison content leads in ChatGPT, and product listings and landing pages lead in Perplexity.

Should I write separate AEO content?

Generally no. Most AEO work is restructuring and strengthening existing content with answer-first structure, FAQ sections and schema, rather than creating a parallel content set.