When businesses learn that AI engines can cite their pages in live search answers, the first question we get about robots.txt is: “I blocked GPTBot — does that mean ChatGPT can’t use my content?”
The answer is no. Blocking GPTBot has no effect on whether ChatGPT cites your pages. The two crawlers are different agents with different jobs, and treating them as interchangeable is the most common robots.txt mistake we find in GEO audits.
What GPTBot actually does
GPTBot (User-agent: GPTBot) is OpenAI’s model training crawler. It visits pages to collect content that may be used to train future versions of OpenAI’s language models — GPT-4, GPT-4o, and whatever comes next.
Blocking GPTBot is a legitimate choice. If you don’t want your writing, your client work, or your proprietary methodology showing up in an AI model’s training data, adding this to your robots.txt is the correct mechanism:
User-agent: GPTBot
Disallow: /That rule will stop GPTBot from crawling your site. Your content won’t be consumed for model training.
What it won’t do is affect ChatGPT’s ability to cite your pages in search answers. That’s a different crawler entirely.
What OAI-SearchBot actually does
OAI-SearchBot (User-agent: OAI-SearchBot) is OpenAI’s live-search citation crawler. When a ChatGPT user asks a question that triggers a web search, OAI-SearchBot fetches pages in real time to find answers. The pages it can read are the pages ChatGPT can cite.
If OAI-SearchBot is blocked — or simply not explicitly allowed — ChatGPT cannot retrieve your pages when generating search answers. Your site becomes invisible to ChatGPT at the citation layer, regardless of how well you rank or how well-structured your content is.
The two crawlers are architecturally separate: one builds the model, the other searches the web when the model is running. Blocking one has no effect on the other.
Why this confusion is common
The naming is genuinely confusing. Both come from OpenAI. Both crawl the web. “GPTBot” sounds like it would be the agent used by ChatGPT — but it isn’t. OAI-SearchBot is the ChatGPT live-search agent, and it has a much lower profile in SEO discussions than GPTBot.
The same pattern exists at Anthropic. Anthropic trains Claude using a separate crawler, while ClaudeBot (User-agent: ClaudeBot) handles Claude’s live web search citations. Blocking one doesn’t affect the other.
At Perplexity, PerplexityBot handles live-search citations. At Google, Googlebot-Extended is used for AI Mode and AI Overviews retrieval (distinct from the standard Googlebot used for classic search indexing).
Each major AI platform has separated its training-data collection from its live-search citation function. The citation crawler is the one that determines whether you get cited.
What to check in your robots.txt
Open your robots.txt file (accessible at yourdomain.com/robots.txt) and look for two things.
First: Is OAI-SearchBot mentioned at all? Many sites have a rule for GPTBot and nothing for OAI-SearchBot — which means OAI-SearchBot is covered by the User-agent: * wildcard rule (typically Allow: /). That’s fine if the wildcard allows crawling. But if you have a restrictive wildcard, OAI-SearchBot may be inadvertently blocked.
Second: Is there a wildcard Disallow rule that would catch OAI-SearchBot? A blanket Disallow: / under User-agent: * blocks everything, including every AI citation crawler, unless each one is explicitly allowed above it.
The safest configuration for a site that wants AI citations — and is comfortable with model training data collection being blocked — is explicit: name the crawlers you want to allow, name the ones you want to block, and don’t rely on wildcard fallback for the distinction.
The correct configuration
A robots.txt that blocks training crawlers while explicitly allowing citation crawlers looks like this:
User-agent: *
Allow: /
# AI citation crawlers — explicitly allowed
User-agent: OAI-SearchBot
Allow: /
User-agent: ClaudeBot
Allow: /
User-agent: PerplexityBot
Allow: /
User-agent: Googlebot-Extended
Allow: /
# AI training crawlers — blocked
# Blocking GPTBot does NOT prevent ChatGPT from citing your pages.
User-agent: GPTBot
Disallow: /The explicit allows for the citation crawlers make intent clear and prevent any wildcard rule from catching them unintentionally.
One more thing about Google
Google’s situation is slightly different because its training and search functions are less clearly separated than OpenAI’s. Standard Googlebot handles classic search indexing, and AI Overviews retrieves from that same index — so blocking standard Googlebot would also affect AI Overviews.
Google’s guidance on AI Overviews is consistent: content that ranks in the classic index and is well-structured for extraction will appear in AI Overviews. There’s no separate citation crawler to configure. The Googlebot-Extended agent specifically handles AI Mode (Google’s more conversational search product), and explicitly allowing it is worth doing for sites that want visibility in that channel.
AI crawler configuration is one of the checks included in every Arara SEO technical audit. If you’d like to know which crawlers have access to your site — and whether any are blocked by accident — the audit is free.