AI Visibility · 17 July 2026

By Eddie Eastwood, Founder

Bing Copilot vs ChatGPT Search for Business Visibility

You will find plenty of articles that say ChatGPT is just Bing, and plenty of others that treat Copilot and ChatGPT as unrelated rivals. Both framings are a few years out of date. The accurate picture in 2026 is more useful, and it changes what you actually do: the two assistants share a Bing-shaped foundation, then diverge in where they reach people and what extra data they can see.

This guide takes the publisher's view. It sets out how each engine finds a business, what the shared foundation is worth, and where the two genuinely part company, using Microsoft's and OpenAI's own documentation rather than second-hand claims. For a smaller business, none of it rewards the biggest spender; it rewards clear pages and a few specific, checkable steps.

The short answer, and why it is not really versus

Chase the shared foundation first, then pick your engine by audience. That one line settles a debate that usually splits into two unhelpful camps: one insists ChatGPT simply borrows Bing, so Bing SEO is all you need; the other treats Copilot and ChatGPT as separate worlds needing separate playbooks. The truth sits between them, and it is more practical than either.

Microsoft is direct about Copilot. In its own words, "powered by Bing's search index, experiences like Microsoft Copilot, Microsoft Start, and others handle billions of queries each month".^[2] So the web-grounded side of Copilot rides on Bing indexing. OpenAI is equally direct that ChatGPT search does not rely on a single source: its help documentation says ChatGPT search "sometimes partners with other search providers" and names Bing among them, next to Shopify.^[1] ChatGPT also runs its own crawler and uses content from direct publisher partners. Bing is one input to ChatGPT, not the whole engine.

That leaves a clean conclusion. Getting your Bing house in order is the one move that pays off across Copilot and part of ChatGPT at the same time, which is why it belongs first. Only after that does the Copilot-versus-ChatGPT choice matter, and it turns on your audience rather than your SEO.

How each engine actually finds your business

The two engines look for you in genuinely different ways, and the difference decides which setting on your own site controls your visibility. Their own documentation spells out exactly which switch to check.

Copilot: grounded in Bing, plus your own data on the work tier

Copilot's public, web-facing answers come from the Bing search index. If Bing can crawl and index your pages, Copilot can draw on them; if Bingbot is blocked, that door is shut regardless of how good the content is. This is why plain Bing hygiene, a submitted sitemap, an indexable site, and confirmed coverage in Bing Webmaster Tools, is the base layer for Copilot visibility.

Microsoft 365 Copilot, the paid work-account version, adds a second source. It grounds a prompt through Microsoft Graph and, in Microsoft's words, "uses Microsoft Graph to access user data that's in the user's unique context", including "emails, chats, and documents that the user has permission to access".^[3] That extra grounding is powerful inside an organisation, but it is not something your marketing can touch, a point worth keeping separate from the public web work and one we return to below.

ChatGPT: its own crawler decides inclusion, with Bing as one input

ChatGPT search works from its own retrieval layer. The setting that governs whether you can appear is OpenAI's crawler, OAI-SearchBot: opt out of it and, per OpenAI, you "will not be shown in ChatGPT search answers". When ChatGPT does look something up, it "sometimes partners with other search providers", and OpenAI's help documentation names Bing among them, alongside Shopify.^[1] It also uses content from direct publisher partnerships. For a fuller look at what triggers that live lookup and how it behaves, our guide on when ChatGPT searches the web goes deeper.

Put the two side by side and the shared piece is obvious. Bing indexing feeds Copilot directly and ChatGPT partially, so it is worth doing regardless. The engine-specific piece is which crawler you must allow: Bingbot for the Microsoft side, OAI-SearchBot for ChatGPT search. Our companion piece on how each engine finds your content works through the crawler settings in detail.

What getting selected actually means

Being indexed is the ticket to the room. Being selected into an answer is a separate step, and Microsoft is unusually clear about how it works. Its guidance describes an engine that parses a page, breaks it into passages, and assembles an answer from the passages that fit the question. The practical takeaway is that an engine lifts sentences, not whole pages, so the way a page is structured decides how liftable it is.

This is not a Microsoft-only trick. The same clarity that makes a passage easy for Copilot to lift makes it easy for ChatGPT to lift as well. Lead each section with a direct answer, keep entities named in plain words rather than pronouns, use question-shaped headings, and give facts a model can quote. One useful detail from Microsoft's own guidance to writers: it advises being cautious with em dashes, which happens to match the plain, machine-readable style that serves every answer engine.

Where your buyer actually is

Once the shared foundation is in place, weight your extra effort by audience, not technique. The rule is simple: if your buyers research in the open before they contact anyone, put ChatGPT first; if they live inside Microsoft 365 all day, or you sell into organisations that do, put Copilot first; if you serve both, start with the ChatGPT off-site work, because it also feeds the open-web answers consumer Copilot gives.

ChatGPT is the broad, open-research surface. People reach for it to shortlist options, compare approaches, and ask the messy first questions of a buying decision, often well outside any single vendor's ecosystem. That open-research moment, before anyone contacts you, is exactly where you want to be named.

Copilot's strength is inside Microsoft 365. For an organisation that lives in Outlook, Teams, Word and Excel all day, Copilot is the assistant already on the screen, and for many enterprise, IT, finance and procurement buyers that is the tool of first resort. If you sell into Microsoft-heavy organisations, Copilot visibility is not a nice-to-have. Treat the split as a tilt rather than a wall, since plenty of people use both, but let your specific buyers decide which engine earns the extra hour.

The Microsoft Graph limit: what you can and cannot influence

No amount of marketing can put you inside a buyer's private Microsoft 365 Copilot answer, and knowing where that wall sits keeps your effort aimed at the surface you can reach. Because Microsoft 365 Copilot can ground answers in a user's own data, it is tempting to assume good content could push you into their internal query. It cannot.

Microsoft's architecture is explicit that Copilot only reaches "data that an individual user is authorized to access", scoped to that person's existing permissions.^[3] When a buyer asks their own Microsoft 365 Copilot something, it answers from their inbox, their files and their meetings, not from your website and not from tenant-wide company data they do not have rights to. Your influence sits at the open-web moment: the public research that ChatGPT and consumer Copilot draw on. The private, in-tenant answer is off-limits to any outside content, and it is fair to say so up front.

What the paid tiers cost

The two business plans are priced differently, and the no-training assurance applies only to specific tiers, not to every version of each tool. Pricing usually arrives tangled up with a claim about training data, so here are both, stated plainly.

The training point needs care, because a blanket claim would be wrong. On the paid tiers the assurance holds: Microsoft's privacy documentation says conversations from Microsoft 365 Copilot "are not used to train Copilot's generative AI models", and OpenAI states there is "no training on your business data by default" for ChatGPT Business.^[4] Consumer Copilot on a personal account is different: the same Microsoft documentation notes it can use your conversation activity to train models unless you opt out. If data handling matters to your decision, choose the tier deliberately rather than assuming every version behaves the same.

A practical plan, in order

Do the shared foundation once, then bolt on the two engine-specific pieces. Because so much of the work overlaps, each step below is tagged by what it helps, so you can see how little is duplicated effort.

The off-site half of the ChatGPT step is the part businesses most often skip, and it is where consistency pays off: a name, address and services that agree everywhere make a model surer of who you are. Our guide on how to get mentioned in ChatGPT covers that work in depth, and earning citations across the web explains why independent references move an engine more than any single page you publish. If you are wondering whether all this quietly favours the incumbents, our piece on whether AI favours big brands looks at what actually drives who gets named.

How to measure it, without guessing

Measure named mentions, not vague impressions. Put your customers' real questions to each engine, phrased the way they would phrase them, and record whether your business gets named. Run the same prompt set every month so you are reading a trend, not a single reply, since answers move over time.

On the Microsoft side there is now a direct measurement tool. The AI Performance report in Bing Webmaster Tools, in public preview since February 2026, shows when your site is cited in AI answers across Microsoft Copilot and Bing AI summaries, which URLs are referenced, and how that activity changes over time.^[5] That is the clearest first-party view of your Copilot visibility, and it pairs well with your own monthly prompt checks for the ChatGPT side. Remember that much of the traffic these engines send arrives mislabelled in your analytics, so being named in the answer is the metric that counts, not a tidy referral line in a report.

A free QBiz Leads AI visibility check gives you a fast starting read. It scans your website in about thirty seconds and returns a clear pass or fail on the signals that decide whether AI tools can find and recommend you, so instead of guessing which foundation piece is missing, you get a prioritised list of what to fix first.

Get your AI Visibility audit →

Frequently asked questions

Does ChatGPT run on Bing?

No. Bing is one of the third-party search providers ChatGPT search sends queries to, and OpenAI's own help documentation names it alongside Shopify. ChatGPT search also runs OpenAI's own crawler, OAI-SearchBot, and uses content from publisher partners, so strong Bing indexing helps you but ChatGPT does not simply run on Bing.

Is Microsoft Copilot the same as Bing Chat?

Copilot is the current name for Microsoft's assistant, and its web answers are grounded in the Bing search index. There are several Copilot surfaces though: the consumer web Copilot, Microsoft 365 Copilot for work accounts, and Copilot built into Edge and Windows. Only the web-grounded surface is shaped by your public content; the others also read internal or on-device context.

Should my business optimise for Copilot or ChatGPT first?

Start with the foundation both share, because a crawlable, clearly written, well-indexed site feeds both at once. After that, weight your effort by where your buyer is: ChatGPT for broad, open research, and Microsoft 365 Copilot for people who work inside Microsoft 365 all day. For most businesses this is not a versus decision but an order of operations.

Can I get my business into a colleague's Microsoft 365 Copilot answers?

No, not through public content. Microsoft 365 Copilot answers a person using the emails, chats and documents that they already have permission to see, through Microsoft Graph. Your website work influences the open-web research moment in ChatGPT and consumer Copilot, not the private answers Copilot gives inside someone else's Microsoft 365 tenant.

Does Copilot train its AI on my company data?

Microsoft 365 Copilot, signed in with a work account, does not use your conversations to train its models, and ChatGPT Business does not train on your business data by default. Consumer Copilot on a personal account is different: it can use your conversation activity for model training unless you opt out. So the no-training assurance applies to the paid business tiers, not to every version.

How much does Microsoft 365 Copilot cost?

Microsoft 365 Copilot is $30 per user per month, bought as an add-on to a qualifying Microsoft 365 plan and typically committed annually. Microsoft also sells bundled plans that include Copilot at a different total, but the standalone per-seat add-on price is $30 per user per month.

How much does ChatGPT Business cost?

ChatGPT Business is $20 per user per month when billed annually, or $25 per user per month when billed monthly. If you see a single figure quoted, check the billing term, because the two prices describe the same plan on different commitments.

What is the single most useful thing to fix for both engines?

Make sure your pages are crawlable and clearly written, then confirm you are not blocking the crawlers that decide inclusion. Bing indexing underpins Copilot and carries over to ChatGPT, and OAI-SearchBot governs whether ChatGPT search can cite you. Clean, indexable, specific pages are the one piece of work that pays off in both.

How do I see whether Copilot is citing my site?

Use the AI Performance report in Bing Webmaster Tools, which entered public preview in February 2026. It shows when your site is cited in AI answers across Microsoft Copilot and Bing AI summaries, which URLs are referenced, and how that citation activity changes over time. It is the most direct Microsoft-owned view of your Copilot visibility.

Do I need separate content for Copilot and ChatGPT?

Mostly no. Both reward the same foundations: crawlable pages, answer-first structure, clear entity details, and consistent information across the web. You do not build two websites. You build one clear, well-indexed site and then decide where to spend extra effort based on which engine your buyers use.

Does blocking Bing's crawler remove me from ChatGPT too?

It can weaken you in both. Bing indexing grounds Copilot, and Bing is one of the providers ChatGPT search draws on, so blocking Bingbot works against you across the Microsoft surfaces and part of ChatGPT's search. Separately, blocking OAI-SearchBot removes you from ChatGPT search answers directly. Check both before assuming a crawler block is harmless.

How do I measure whether any of this is working?

Track named mentions, not vague impressions. Ask each engine the questions your customers would ask, note whether you are named, and repeat the same prompt set monthly so you can read the trend. Pair that with the AI Performance report in Bing Webmaster Tools for Copilot citations, and you have a practical, repeatable read on both engines.