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How Chatgpt ads target work

How Does ChatGPT Ads Targeting Work? A Guide to Context, Intent & Audiences

⏱️ 14 min read

Table of Contents

ChatGPT Ads do not work on keywords. The platform decides which ad to show based on the live conversation, your creative, your landing page, and your bid all at once. Understanding how it works will help you spend budget wisely and see results faster.

What ChatGPT Ads Actually Look Like

Before getting into how targeting works, it helps to understand what a ChatGPT Ad is. Ads appear as sponsored text responses inside the ChatGPT conversation interface. They look similar to a regular ChatGPT answer but are clearly labelled as sponsored. Each ad includes a short headline, brief body text, and a link to your landing page. There are no banner images, no video pre-rolls, and no display placements. The format is entirely text-based, which means your headline and copy carry the full weight of the creative. Search Engine Land has covered the rollout of the format in detail for those who want the full background.

Ads are shown at natural breaks in the conversation, typically after a user asks a question that the platform determines is commercially relevant. The user sees one ad at a time, not a list, which means the placement is high-attention but competitive to win.

How ChatGPT Ads Decide Which Ad to Show

Google Ads places ads based on typed search queries. Meta Ads places ads based on user profiles. ChatGPT Ads uses a relevance-weighted auction that considers multiple signals at once during a live conversation.

Those signals include the topic and intent of the conversation, your ad headline and body, your landing page content, any context hints you have set, and your bid. If the user has ad personalisation enabled, patterns from their ChatGPT interactions may also factor in. No personal information is shared with advertisers.

ChatGPT Ads is a relevance auction, not a keyword auction. The platform favours ads that fit naturally into the current conversation. Your creative and landing page carry significant weight in the targeting decision, not just your bid amount.

ChatGPT Ads vs Google Ads vs Meta Ads

Before building a strategy for ChatGPT Ads, it helps to understand how it differs from the platforms most Malaysian businesses are already running.

Comparison between Google Ads, ChatGPT Ads and Meta Ads targeting
🔍
Google Search Ads
Adverts serve in response to explicit queries made by the buyer through keywords and match types.
💬
ChatGPT Ads
Adverts serve during conversations according to topic, intention, and context. There are no match types. The buyer is in the middle of their research when your advert shows up.
👤
Meta Ads
Serves ads to audiences built from demographics and past behaviour. Targeting centres on who someone is and what they have done previously.

Early reporting on ChatGPT Ads suggested there were no audience targeting options at all. That has changed. It is now possible to target by location, platform (iOS, Android, and web), and to upload custom audiences using your first-party data. However, the platform still lacks the demographic segmentation that Meta Ads offers. There are no age groups, interest categories, or lookalike audiences built from pixel data.


Context Hints: How to Define Your Targeting

Context hints are plain-text descriptions added at the ad group level. They tell the platform what your product does, who it helps, and which situations make your ad relevant. The system reads them semantically, not as keyword matches, so your ad will not appear simply because a particular word was mentioned in the conversation.

The most common mistake is treating context hints as a tag cloud. Listing unconnected words like "invoices, software, finance" gives the algorithm no useful signal about when to show your ad.

Step 01
Describe the buyer, not the product
Start with who the buyer is and what situation they are in. Features belong in your ad copy, not in the context hint.
Step 02
Name the moment they are ready to act
Describe the trigger point: the moment in their journey where your offer becomes the right answer. The more specific, the better the match.
Step 03
Write 3 to 5 hints per ad group
Each hint should cover a distinct situation or buying stage. Keep one theme per ad group and pause hints that spend budget without generating conversions after four weeks.
✕  Weak
Words only, without any contextual information. The algorithm will not know who the buyer is, where in their process they are, and why your offer will be of value to them.
✓  Strong
"Small business owners in Malaysia looking for a cloud-based accounting software solution for invoice generation and payroll processing."
This describes who the buyer is, where they are in their process, and what they are looking for, giving the algorithm meaningful context to match against relevant conversations.
✏️
Writing rule: always describe the customer's situation, not the features of your product. The context hint is not a call to action. It describes the moment in conversation that you wish to appear in. Start with the buyer situation first and your offer second. An air conditioning company might write: "Malaysian homeowner whose cooling system no longer functions well enough and who is considering repairing the old unit or installing a new one."

Context Hints vs Search Keywords vs Custom Audiences

Control What It Does What It Cannot Do
Context hints Describe situations and buyer needs to guide the relevance algorithm Guarantee delivery in conversations containing a specific phrase
Search keywords Enter ads into eligible searches via keyword and match-type logic Describe a full conversational need or buyer situation on their own
Custom audiences Include, exclude, or apply bid adjustments for matched first-party users Reveal anything about a user's ChatGPT conversations to advertisers

Campaign-Level Targeting Controls

Context hints handle the content side of targeting. ChatGPT Ads also gives you a set of campaign-level controls that determine where and to whom your ads are eligible to appear.

ChatGPT Ads campaign-level targeting controls
📍
Location Targeting
You may target by country. If you are in the US, there is additional targeting available for states, cities, DMA, and zip codes. Choose your geographies based on what you can realistically deliver. If you get too granular, you risk limiting your number of auction opportunities with little to no quality advantage.
📱
Platform Targeting
Choose iOS, Android, web, or combinations. Make sure that your choice matches where your landing pages really perform. If your conversion form or purchase process isn't reliable on mobile platforms, it's better to avoid paying for clicks that won't convert.
👥
Custom Audiences
You may use lists of emails, phone numbers, hashed IDs, or mobile identifiers for first-party audiences. This enables you to target high-quality leads, exclude current customers, or make bid modifiers for particular segments. Audience lists must contain at least 25,000 users matched for inclusion, although they may be used for exclusion even if smaller.
🗂️
Structure of an Ad Group
Every ad group should have only one theme: one product, one kind of buyer, or one phase of the buying process. Mixing different audiences or products into one ad group distorts the statistics making it almost impossible to identify what factor influences the performance of that ad group.
💡 Practical Example

An app that helps manage projects for businesses in Malaysia can have two different ad groups: one targeted at freelancers facing client deadlines and working alone; the other one at small agencies struggling with client reporting and the capacity of the team. The context hints, creative and landing page would be unique for every ad group.


How the Auction Works

ChatGPT Ads runs on what OpenAI calls a Relevance Weighted Second Price Auction. Two principles govern every placement decision. First, your bid alone does not win the placement. The platform multiplies your bid by a relevance score it assigns to your ad based on how well your creative, landing page, and context hints match the live conversation. A competitor with a lower bid but a higher relevance score will beat you. Second, the winner pays only the minimum amount required to beat the next highest bid, not their full maximum bid. This keeps costs efficient for well-optimised campaigns.

What this means practically: relevance is a cost lever, not just a quality metric. If your context hints are vague and your landing page is generic, you will pay more per click than a competitor whose ad fits the conversation tightly, even if you bid higher. Conversely, a well-written context hint paired with a focused landing page can win placements at a lower cost than competitors who rely purely on bid price.

On budget, the platform currently does not publish a minimum spend requirement. Start with enough daily budget to generate meaningful data. A figure that allows at least 20 to 30 clicks per week per ad group gives you something to optimise against within a reasonable timeframe. If your budget is too low, the platform will not enter enough auctions to give you reliable performance signals and it will be difficult to know whether your targeting or your creative is the issue.

2nd price Auction model: you pay the minimum needed to win, not your max bid
25K+ Matched users required for custom audience inclusion or bid adjustment
20 to 30 Minimum weekly clicks per ad group to generate reliable optimisation data

The Most Common Targeting Mistakes

Underperforming ChatGPT Ads campaigns tend to share the same structural issues. The problems below appear repeatedly when we review new accounts for the first time. If you are working with a performance marketing agency, these are the first things worth checking before scaling spend.

Mistake Why It Hurts Performance How to Fix It
Keyword-only context hints Without buyer context, the algorithm cannot match conversations accurately and wastes impressions on irrelevant audiences Provide a clear understanding of the role of the buyer, their problem, and stage of decision-making
Mixed audiences in one ad group It is difficult to understand what kind of customer and what situations make for success, turning optimisation into a guessing game One theme per ad group. Segregate campaigns according to the product or customer or the stage of decision-making
Generic ad creative Generic copies such as "change your business" have nothing to do with a particular situation and indicate low relevance of ads Copy that directly addresses the situation described in the context hint
Homepage landing page Homepage doesn't match the context of conversation and negatively impacts relevance Have or build a landing page which addresses the specific situation of the buyer as it was explained in the context hint
Location and platform restrictions Excessive restrictions reduce the pool of auctions you can compete in and may affect your spending Target the maximum geographical locations and combinations of platforms possible for your business
Not excluding existing customers Spends budget on users who have already converted and inflates your cost per lead figures Upload a customer exclusion list through the custom audiences feature before your campaign goes live
No conversion tracking Without conversion tracking you can only see clicks and have no way to know whether the targeting is reaching buyers who actually complete an action Set up conversion tracking capturing a meaningful business action before launch

Pre-Launch Targeting Checklist

Go through this list before putting any budget into a ChatGPT Ads campaign. Leaving gaps here makes it much harder to understand which parts of your campaign are working and which are not. For a broader checklist on paid social campaigns, see our agency services page.

  • 1
    One theme per ad group. Put each product, buyer type, and use case into its own ad group with no mixing.
  • 2
    Write context hints around the buyer's situation. Cover their role, their challenge, and the moment they are most likely to act. Leave product features for the ad copy.
  • 3
    Align your ad copy and landing page to the context hint. The platform scores relevance across all three elements together.
  • 4
    Only target locations and platforms you can actually serve. Do not select geographies you cannot fulfil or device types where your landing page does not perform.
  • 5
    Upload a customer exclusion list before going live. Even a small list stops budget being spent on people who have already converted.
  • 6
    Set up conversion tracking before launch. Track a real business action such as a form submission, a call, or a purchase. A page visit does not tell you enough.
  • 7
    Review lead quality one month after launch, not just click volumes. Click-through rate tells you something about reach. Quality of click-through rate tells you if you're reaching the right people.

Frequently Asked Questions

On ChatGPT Ads, targeting happens based on conversation relevance and not keyword relevance. The platform takes into account ongoing conversation, creative of your ad, your landing page, context hint (which you have set up) and bid price when choosing which ad to display. Context hints are plain English explanations that help the algorithm get a better understanding of what conversations your ad is relevant for.
A context hint is a plain-language description you add at the ad group level to explain what your product does, who it is for, and when it becomes useful. The platform reads it semantically rather than scanning for keyword matches. A well-written hint focuses on the customer's situation and the moment your offer becomes the right answer, rather than simply listing features or product terms.
ChatGPT Ads does not offer demographic audience segments in the way Meta Ads does. Targeting works through context hints and, for advertisers with sufficient first-party data, custom audience uploads using email addresses, phone numbers, or other identifiers. Businesses that cannot reach the 25,000 matched user minimum for custom audiences can still shape their targeting through context hints, location settings, and platform selection.
Google Ads connects ads to typed search queries through keywords and match types. ChatGPT Ads connects ads to live conversations through contextual relevance and a weighted auction. There are no match types to configure and no negative keyword lists to manage. Context hints describe a buyer situation rather than a search term, and the platform assesses fit based on the full conversation rather than a single query.
A good starting point is 3 to 5 context hints per ad group, each one focused on a distinct customer situation or stage in the buying process. Keep each ad group to a single theme. Blending different audiences or products within one group produces unreliable performance data and makes it difficult to optimise. After four weeks, review which hints are generating results and pause any that consume budget without producing clicks or conversions.
ChatGPT Ads does not offer pixel-based retargeting. Custom audiences are available, and these are built from first-party data including email addresses, phone numbers, and mobile advertising IDs. They can be used to include specific user segments, exclude people who have already converted, or adjust bids for matched users. A minimum of 25,000 matched users is required for inclusion and bid adjustment purposes. Smaller lists can still be used to exclude audiences.

Get Started with ChatGPT Ads for Your Business

Marvant helps Malaysian businesses launch ChatGPT Ads campaigns — from writing context hints and building creative, to conversion setup and budget management. Reach out to our team or explore our performance marketing services to get started.

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Jiayi G.

Jiayi Gan is the CMO at Marvant Evolutions, with experience spanning startups & leading 4A MNC advertising agencies. She has managed multi-million-ringgit advertising investments across Google, Meta, and TikTok for businesses across multiple industries. Today, she leads AI-powered marketing initiatives across SEO, AIGC, marketing automation, and performance media, enabling brands to improve search visibility, scale content production, and accelerate business growth.