OpenAI x Smartly: Conversational Ads Inside ChatGPT Signal the Death of Display Advertising

On April 1, 2026, OpenAI signed Helsinki-based Smartly as its first creative adtech partner. The partnership's stated goal, according to Business Insider, is to build "personalized ChatGPT ads that users can interact with." Not view. Not click through. Interact with.

This is the first concrete signal that AI advertising will look nothing like the display advertising model that has dominated digital marketing for two decades.

Smartly joins Criteo, which was appointed as OpenAI's first overall adtech partner in March 2026. But while Criteo handles targeting and measurement infrastructure, Smartly's role is creative: designing ad formats that are native to a conversational AI environment.

The Next Web described the vision bluntly: ads that "do not simply sit beside a response but respond to the user in turn."

If this works, the entire $680 billion digital advertising industry needs to fundamentally rethink how ads are designed, measured, and delivered.

What Conversational Ads Actually Look Like

Traditional digital ads follow a simple model: show a creative (image, video, or text), hope for a click, drive the user to a landing page. The entire funnel assumes a passive viewer.

Conversational ads flip this model entirely. Here is how they work inside ChatGPT:

1. A user asks ChatGPT a question with commercial intent (e.g., "What running shoes are best for flat feet?")
2. ChatGPT provides an organic answer
3. A sponsored result appears, clearly labeled, from a brand like Nike or Brooks
4. Instead of linking to nike.com, the user clicks and enters a conversational experience with the brand's AI
5. The brand's chatbot provides personalized product recommendations, answers questions, and guides the user toward a purchase decision

The key difference: the ad itself is a conversation. The brand gets to engage the user in dialogue, understand their needs, and tailor the response in real time. This is infinitely richer than a 300x250 banner.

MediaPost reported that Smartly's integration allows "advertisers to place ads in the ChatGPT interface where users can engage with the chatbot for product advice and recommendations." The ad unit is not a creative asset. It is a brand agent.

The Economics: $200K Minimum, $60 CPM

OpenAI launched advertising on February 9, 2026, with a $200,000 minimum commitment. Ads appear to users on the Free and Go tiers of ChatGPT. Premium subscribers (Plus, Pro, Enterprise) see no ads.

The pricing structure is revealing:

• $60+ CPM (cost per thousand impressions) on ChatGPT, according to previous reporting
• Compare: Google Search Ads average $2-5 CPM; Meta averages $8-12 CPM
• ChatGPT's premium pricing reflects high-intent audiences and zero ad competition per query

At $60 CPM, ChatGPT ads are 10-30x more expensive per impression than traditional digital channels. OpenAI is betting that conversational engagement will justify the premium. If a user spends 2-3 minutes in a brand conversation (vs. 0.5 seconds glancing at a display ad), the effective cost per engaged minute could actually be lower.

US AI search ad spending is projected at $2.08 billion in 2026, representing 1.3% of total digital ad spend. By 2029, that number grows to $25.93 billion at 13.6% share (DigitalApplied). The growth rate (over 12x in three years) tells you where the market expects attention to shift.

Why Smartly, and Why Now

Smartly is not a random pick. The company runs over $6 billion in annual ad spend for brands including Uber, eBay, and Walmart. It specializes in creative automation: generating, testing, and optimizing ad creatives at scale across platforms.

The challenge Smartly solves for OpenAI is specific: how do you create ads for a conversational interface when the entire ad industry's infrastructure is built around static creatives?

Display advertising has standardized creative formats: 728x90 leaderboards, 300x250 rectangles, 15-second pre-rolls. Creative teams know how to make these. Tools exist to test them. Measurement frameworks exist to evaluate them.

Conversational ads have none of this infrastructure. Every interaction is dynamic. There are no fixed dimensions. The "creative" is a decision tree of possible conversations. Performance depends on how well the brand's AI responds to unpredictable user inputs.

Smartly's creative automation platform is one of few tools that could handle this complexity. The company can generate thousands of conversation variants, test them against user engagement data, and optimize in real time, the same core capability it already provides for display and social ads, adapted for a conversational medium.

TipRanks reported that the partnership aims to "make sponsored content feel more like natural conversations and help brands stay relevant" within the ChatGPT experience. The word "relevant" is key. In a conversational context, irrelevant ads are not just ignored. They actively damage the user experience.

The Adtech Stack Is Being Rebuilt

OpenAI's partner strategy reveals how the AI advertising infrastructure is being constructed:

• Criteo: Targeting, measurement, and commerce media (the "plumbing")
• Smartly: Creative automation and conversational ad formats (the "experience")
• OpenAI internal: Ad serving, placement, and user context (the "platform")

This mirrors how Google built its ad empire: AdWords for advertiser tools, DoubleClick for ad serving, and Analytics for measurement. OpenAI is constructing the same stack, but native to conversational AI.

Missing pieces that will be filled by additional partners:

• Brand safety and verification: Someone needs to ensure brand conversations stay on-script
• Attribution: How do you attribute a sale to a 3-minute AI conversation that happened inside ChatGPT?
• Cross-platform measurement: Brands running ads on ChatGPT, Perplexity, and Google AI Mode need unified reporting

The $200K minimum commitment ensures that only serious advertisers enter the ecosystem during the build phase. Expect that minimum to drop as the infrastructure matures and self-serve tools launch (likely H2 2026).

What This Means for the $680 Billion Ad Industry

The shift from display to conversational advertising has three major implications:

Creative teams need to think in conversations, not campaigns. A display ad campaign involves a handful of hero images and copy variants. A conversational ad involves branching dialogue, objection handling, product knowledge, and tone calibration. This is closer to sales training than creative direction.

Media buying becomes experience design. Buying a ChatGPT ad placement is not like buying a Google keyword. The ROI depends entirely on the quality of the conversational experience behind the ad. Two brands buying the same placement will see vastly different results based on how well their conversation AI performs.

Measurement shifts from impressions to engagement depth. Display advertising measures impressions, clicks, and conversions. Conversational advertising measures conversation length, question depth, satisfaction scores, and purchase intent signals. The entire measurement framework needs to be rebuilt.

The Perplexity Contrast

While OpenAI is going all-in on advertising, Perplexity is moving in the opposite direction. After launching sponsored answers in late 2025, Perplexity pivoted to a subscription-first model in February 2026, partly in response to privacy concerns (the company is currently being sued over alleged sham incognito mode tracking).

This divergence creates two distinct AI search advertising models:

• OpenAI/ChatGPT: Ad-supported free tier with premium conversational ad formats
• Perplexity: Subscription-first with enterprise pricing up to $325/user/month

Google AI Mode sits somewhere in between, continuing its traditional ad model but struggling to adapt it to AI-generated answers where zero-click rates hit 93%.

For advertisers, this means AI advertising is not monolithic. Each platform requires different strategies, different creative formats, and different measurement approaches. The brands that figure out platform-specific AI advertising first will capture disproportionate value.

How CMOs Should Respond

Five actions for marketing leaders:

1. Budget allocation: Reserve 10-15% of your 2026 digital ad budget for AI platform advertising experiments. The $200K minimum for ChatGPT ads means this is currently an enterprise play, but self-serve tools are coming.

1. Build conversational brand assets. Your brand needs a defined conversation personality, a knowledge base for product Q&A, and guardrails for off-topic interactions. This is the creative foundation for conversational ads.

1. Hire or train for AI-native creative. Your team needs people who can design conversation flows, not just static creatives. Look for talent at the intersection of UX writing, chatbot design, and brand strategy.

1. Start measuring engagement depth now. If you are running any AI-adjacent marketing (ChatGPT plugins, AI-powered customer service, etc.), start tracking conversation metrics. This data becomes your benchmark when conversational ads launch.

1. Watch the Smartly integration closely. Smartly will likely publish case studies and best practices as the partnership matures. Early learnings from their campaigns will set the playbook for the entire industry.

The display advertising era lasted 25 years. The conversational advertising era starts now. The transition will be measured in quarters, not decades.

FAQ

What are conversational ads in ChatGPT?

Conversational ads are interactive ad formats where users click a sponsored result inside ChatGPT and enter a chatbot-style dialogue with a brand's AI. Instead of viewing a static banner and clicking to a landing page, users engage in a real-time conversation that provides personalized product information and recommendations.

How much do ChatGPT ads cost?

OpenAI launched advertising on February 9, 2026, with a $200,000 minimum commitment. CPMs are estimated at $60+, significantly higher than Google Search ($2-5 CPM) or Meta ($8-12 CPM). The premium pricing reflects high-intent audiences and zero ad competition per query.

What is Smartly's role in ChatGPT advertising?

Smartly is OpenAI's first creative adtech partner, responsible for building conversational ad formats inside ChatGPT. The company specializes in creative automation and manages over $6 billion in annual ad spend for brands like Uber, eBay, and Walmart.

How big is the AI search advertising market?

US AI search ad spending is projected at $2.08 billion in 2026 (1.3% of total digital ad spend), growing to $25.93 billion by 2029 (13.6% of total). This represents over 12x growth in three years.

Should brands start advertising on ChatGPT now?

The $200K minimum makes ChatGPT ads an enterprise play currently. However, marketing leaders should reserve 10-15% of digital ad budgets for AI platform experiments, build conversational brand assets, and prepare for self-serve tools expected in H2 2026.