Listen: Does Schema Help With “AI”?
An experiment testing whether OpenAI's browsing tool provides GPT-5 with grounding context from page schema or only extracts plain text and markdown content.
Transcript
Does OpenAI’s browsing tool actually read website schema to give its models better context? To find out, a test was set up comparing two identical web pages: one packed with structured schema markup, and one with none.
The results show no evidence that schema data ever reaches the model. When asked directly, ChatGPT confirmed that the browsing tool only extracts the plain, visible text from the page. It completely ignores structured metadata, such as JavaScript Object Notation for Linked Data, commonly known as JSON-LD.
Whether a page has embedded schema or not, the browsing tool simply returns standard headings, lists, and text. For anyone hoping that structured data might give their pages an edge in artificial intelligence search, it seems the models are only reading what is visible on the screen.