ChatGPT
- Web, business, image and find fan-out queries
- Sources fetched and sources cited, side by side
- Product cards with price, rating and merchant
See what the AI searched before it answered.
Only Fan Out is a free Chrome extension that shows every fan-out query, every source fetched, and every source cited behind answers in ChatGPT, Claude and Grok.
Coming to the Chrome Web Store
Three engines
One side panel for ChatGPT, Claude and Grok.
Each engine sends its own search data back to your browser. Only Fan Out reads what is already there and lays it out per turn.
Claude
- Web and places searches, grouped by turn
- Citations attached to the answer text
- Places Claude used on the map, and places only named
Grok
- Web searches and page browses
- Inline citations resolved back to their sources
- X posts quoted or referenced in the answer
How it works
Three steps, no setup.
1
Install and open the side panel
Add the extension, then click its toolbar icon on any ChatGPT, Claude or Grok tab. There is no popup and no options page to configure first.
2
Ask anything
Send a message in ChatGPT, Claude or Grok the way you normally do. Only Fan Out watches the response your browser already receives.
3
Read the fan-out
See the queries the assistant generated, the sources it retrieved, and the sources it cited, with your brand and domains flagged when they appear.
Built for GEO
Made for people who audit AI answers.
SEO and GEO practitioners, researchers and anyone curious about what an assistant does before it responds.
Fan-out queries in order
The exact search queries an assistant generated for a turn, in the order it ran them.
Fetched versus cited
Every page a search fetched, and which of those pages the final answer actually cited.
Watchlist for brands and domains
Track brands or domains you care about and see every mention highlighted across queries, sources and answers.
History across engines
Every captured conversation, searchable by title, prompt or query text, across ChatGPT, Claude and Grok.
CSV, Markdown and JSON export
Export a single turn or a whole conversation in the format you need for a report or a spreadsheet.
Diagnostics for schema drift
Parser status per engine, drift flags when an engine changes a field, and a log of recent captures.
Nothing leaves your browser.
No servers, no accounts
Only Fan Out has no servers of its own and asks you to sign into nothing. There are no tokens stored anywhere outside your browser.
Data lives in chrome.storage.local
Captured conversations, your watchlist and your settings stay on your device, in the extension's own local storage.
Grok connector searches
Searches Grok runs against connected Gmail, Drive or Calendar are counted, but their query text is never stored.
FAQ
Questions people ask.
Is it free?
Yes. Only Fan Out is free to install and use.
Does it work with Gemini?
Not yet. Only Fan Out currently supports ChatGPT, Claude and Grok.
Does it slow down ChatGPT?
No. Only Fan Out reads the network responses your browser already receives. It does not add its own requests to a normal turn.
Why is a source fetched but not cited?
An assistant's search step often retrieves more pages than the final answer references. Only Fan Out shows the full set the assistant fetched next to the smaller set it cited, so you can see the gap between the two.
Does OnlyFans have anything to do with this?
No. The name is a play on "fan-out," the term for how an AI answer splits one question into many searches.