From the blog
Field notes on AI-native advertising.
Research-grade writing on ChatGPT ads — eligibility, auction mechanics, measurement, creative specs, and the agencies building for the shift.
30 field notes 273 min of reading Updated
01 Platform Explainer Start here
What Are ChatGPT Ads?
ChatGPT ads clear four gates before an impression serves: registration country, buyer market, location targeting, and category. Plus the real $25/day floor.
By The InPromptAds Team 17 min read
All field notes.
Start with the format explainer, then dig into eligibility, bidding, measurement, and the operational guides below.
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02
Psychology 12 min read
Why People Respond to Ads Differently Inside a Conversation
Why a ChatGPT ad lands differently than a banner or search ad: reactance, cognitive load, the dialogue dividend, and what it means for creative.
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03
Strategy 12 min read
ChatGPT Ads vs Google Ads vs Meta Ads: Where Does AI Advertising Fit?
Side-by-side CPC, CTR, and conversion signals across ChatGPT, Google, and Meta — and which buyer-journey stage each platform actually owns.
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04
Agency Guide 17 min read
The 10 Best ChatGPT Ads Agencies for B2B Brands in 2026
The 10 agencies best positioned to run ChatGPT ads for B2B brands, compared on creative, measurement, and B2B specialisation.
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05
Performance 8 min read
Do ChatGPT Ads Actually Work? The Three Public Numbers, and What Each One Measured
Criteo’s 1.5×, Opascope’s 1.49× ROAS, and a 0.91% CTR — what each figure measured, and why OpenAI still says no benchmarks exist.
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06
Market Reality 7 min read
Who Is Actually Running ChatGPT Ads? Named Advertisers, Agencies and Partners
Named advertisers, agencies, and partners in OpenAI’s ad pilot — including Omnicom, Dentsu, WPP Media, and Criteo — with dated sources.
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07
Creative Specs 7 min read
What Does a ChatGPT Ad Actually Look Like?
Six documented chat_card fields: advertiser name, favicon, title, copy, landing page, and a square image — plus what OpenAI does and does not publish.
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08
Creative Specs 10 min read
ChatGPT Ad Specs: Character Limits, Image Sizes, and What OpenAI Actually Documents
Five sources publish five different character limits. OpenAI documents image rules precisely and publishes no character limits at all — compared side by side.
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09
Setup 16 min read
What Has to Be True Before You Can Run a ChatGPT Ad
Eleven conditions gate a ChatGPT ad: free disqualifiers, one irreversible signup decision, and blockers that cost days. Check them in the right order.
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10
Eligibility 7 min read
ChatGPT Ads Eligibility by Country: The Two Lists, Maintained
Advertiser eligibility and ad serving are separate permissions. Nine countries can register; Brazil sits on one list and not the other. Refreshed monthly.
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11
Eligibility 14 min read
How to Advertise on ChatGPT From India or the UAE, and What the Workaround Actually Buys
A US entity lets Indian or Emirati businesses advertise — it does not let them reach local users. The workaround buys American attention only.
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12
Eligibility 9 min read
Can You Advertise on ChatGPT in India? What Changed on 14 August 2026
Indian businesses cannot open advertiser accounts, yet OpenAI emailed Indian users about ads on 14 Aug 2026. Inventory is being prepared before market open.
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13
Policy 7 min read
Can My Industry Advertise on ChatGPT? Restricted Categories and What Manual Review Actually Does
Allowed, disallowed, and case-by-case categories — plus the US-only carve-out for finance and health that most policy summaries drop.
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14
Setup 8 min read
How Long Does ChatGPT Ads Approval Take?
OpenAI publishes no review timeline and will not expedite requests. Verification and account review are separate steps — circulating timelines are anecdotal.
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15
Buying 7 min read
How the ChatGPT Ads Auction Works: Objectives, Bids and Budgets
Relevance-weighted second-price auction, Reach vs Clicks objectives, $3–$5 CPC guidance, and the $25 daily campaign floor underneath every test.
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16
Targeting 5 min read
ChatGPT Ads Context Hints: What They Are, and What They Are Not
Context hints guide matching but are not exact-match keywords and do not guarantee placement. Matching also scores conversation, landing page, and copy.
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17
Measurement 10 min read
How to Measure ChatGPT Ads, and What You Cannot Measure Yet
Ads Manager reports impressions, clicks, spend, CTR, CPC, CPM, and conversions. It does not show the conversation your ad sat beside — or any benchmarks.
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18
Buying 8 min read
What a Readable ChatGPT Ads Test Actually Costs
The $25 daily minimum is the smallest line item. Entity setup, banking, and verification can exceed media — and a $500 budget rarely produces a readable result.
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19
Strategy 8 min read
Who Should Not Buy ChatGPT Ads Yet
Ads skip Plus, Pro, and Business users — excluding most enterprise buyers. Six free-to-check conditions that disqualify a business from this channel today.
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20
Audience 6 min read
Users Can Opt Out of ChatGPT Ads. Nobody Has Published What That Does to Your Reach
Ad-eligible reach is residual after paid plans, under-18s, and Free Ads-Free opt-outs. OpenAI has published no take-up rate for that last exclusion.
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21
Policy 7 min read
Brand Safety on ChatGPT Ads: What OpenAI Controls, and What You Cannot See
OpenAI places ads only near safe chats — but advertisers get no adjacency report and no exclusion controls. Brand safety here is a guarantee you accept.
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22
Strategy 7 min read
Does Running ChatGPT Ads Affect Your Organic AI Visibility?
OpenAI’s Answer Independence says ads do not influence organic answers. One agency reported organic CTR +156% while paid ran — the only public signal.
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23
Technical 11 min read
Blocking AI Crawlers Can Get Your ChatGPT Ads Rejected
OpenAI rejects ads whose landing pages block its crawlers. Allow OAI-AdsBot — not GPTBot — and check five layers from robots.txt to CDN bot rules.
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24
Technical 8 min read
ChatGPT Ads Troubleshooting: Every Documented Failure Mode
Symptom-to-cause reference for Ads Manager Beta: nine failure modes, what OpenAI says to check, what to send support, and open documentation gaps.
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25
Ecommerce 7 min read
ChatGPT Product Feed Ads: What OpenAI Documents, and What Changed Under the Guides
Feeds now accept CSV, hosted URL, or SFTP — not SFTP-only. Items expire in two weeks, need 1,000+ products, and stay out of organic ChatGPT in beta.
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26
Ecommerce 7 min read
ChatGPT Ads for Ecommerce: Where Retailers Actually Stand
Household goods are permitted and product feeds are open — but a ~1,000-product minimum and two-week item expiry shut out most small retailers.
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27
Verticals 8 min read
ChatGPT Ads for Local Services: The Approved Category Nobody Writes For
Local services is a permitted category. Sub-national targeting exists at US postal-code level only — which decides whether the channel works locally.
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28
Strategy 8 min read
ChatGPT Ads vs Google AI Mode Ads: What Can and Cannot Be Compared
Two AI ad surfaces after Perplexity exited ads. They differ on auction, exclusions, and reporting — and OpenAI says no benchmarks exist for fair comparison.
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29
Reference 8 min read
ChatGPT Ads Glossary: The Terms, Defined From the Documentation
Definitions sourced to OpenAI docs or marked undocumented — why context hints ≠ keywords and eligibility ≠ ad serving.
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30
Reference 7 min read
ChatGPT Ads Changelog: Every Documented Change, Dated and Sourced
A reverse-chronological, sourced record of ChatGPT advertising changes — OpenAI revises docs quietly, and trade press often rewrites articles in place.
