Context hints: the closest thing to keywords — and why they're not keywords

What a context hint is

In OpenAI Ads Manager there is no keyword field. Instead, each ad group has context hints: additional details about your business, product or service that help OpenAI's system understand when your ads may be relevant in a ChatGPT conversation.

OpenAI describes them as information beyond what is already clear from your ad and landing page. The system reads them alongside your title, copy, landing page and the conversation's context and intent, then decides whether your ad fits.

Hints live on the ad group, not the campaign or the ad. Through the Ads API an ad group can hold up to 2,000 of them, and updating the list replaces it entirely.

Why they are not keywords

The comparison is natural, and OpenAI heads it off directly. Context hints inform relevance; they are not exact-match controls, audience targeting rules or instructions to show your ad only for specific conversations.

Three differences matter in practice.

• No exact match. People do not need to use the words in your hint. A hint about after-hours plumbing could be relevant to a conversation about a burst pipe at midnight.
• No guarantee. A hint never promises delivery for a topic, audience or situation.
• No delivery control. Hints cannot enforce a geography, a schedule or an exclusion. Country and platform targeting, custom audiences and exclusions are separate campaign settings.

OpenAI's own example draws the line. A hint saying residential plumbing services are available in Chicago describes a business. A hint saying to show the ad only to people in Chicago is a delivery instruction and does not belong.

How to write a hint that works

OpenAI suggests one question: what else should we know about your product, who it helps and when it is useful? Each hint answers part of that in one clear, natural phrase focused on a single idea, not disconnected keywords.

Strong hints are additional, specific, relevant and accurate. Specific means a concrete feature, service detail, need or situation. Accurate means you update hints when pricing, availability or service areas change.

OpenAI's illustration: "running shoes" is weak. "Cushioned everyday running shoes for beginners training for their first 5K" is strong, because it names the product, the person and the moment.

A detail already on your landing page can still earn a hint if the hint connects it to a customer need, for example why a feature matters in a particular situation.

Structure: one theme per ad group

Hints are only as useful as the ad group around them.

OpenAI's guidance is to group ads and hints around a shared product, service, theme or customer need, and to split into separate ad groups when use cases need different messaging or landing pages.

The help center's example is a plumber with one ad group for emergency repairs and another for preventive maintenance. Same business, different need, different copy, different hints.

Within a group, hints can cover related situations and natural variations of the same theme. That is what gives the system room to match phrasing you never predicted.

Common mistakes

Most weak accounts share the same handful of habits.

• Pasting a search keyword list. Single words and fragments give the system little to reason about.
• Writing targeting into hints. "Only in Tel Aviv" or "weekdays only" does nothing; use campaign settings.
• Describing the audience you want rather than the need you serve. OpenAI notes that wanting to reach a customer group does not by itself make your offer relevant to it.
• Letting hints go stale after a price or service change.
• Mixing unrelated offers in one ad group so the hints contradict the ads.

Fix those, pair the hints with copy that says what you offer, who it is for and when it helps, and you have covered the part of ChatGPT Ads that most resembles keywords, without pretending it is one.