$100 million in ad revenue in six weeks. Less than 20% of eligible ChatGPT users were actually seeing those ads.
On May 5, 2026, OpenAI officially launched its self-serve Ads Manager for ChatGPT - opening the advertising platform to any US business, with no minimum spend requirement. Previously, the entry point was $50,000.
The Barrier That Just Disappeared
Until May 2026, ChatGPT advertising was reserved for large brands with six-figure budgets. That restriction is now gone. Any US business can launch campaigns with CPC or CPM bidding through a self-serve interface. OpenAI also activated cost-per-action (CPA) ads for select advertisers on May 28, 2026 - meaning brands pay only when a user clicks, signs up, or makes a purchase.
Current formats: sponsored content and carousels appearing in ChatGPT Search when users make commercial queries like “best laptop under $1,000.” Ads are kept separate from AI-generated responses - a design choice OpenAI has been explicit about maintaining.
The Numbers Behind the $2.5 Billion Target
ChatGPT reached 1 billion weekly active users in May 2026. The platform processes 2.5 billion prompts daily. $100M in annualized revenue was generated in the first six weeks of pilots, with less than 20% of eligible users seeing ads. Over 600 advertisers participated in the beta phase (Axios, 2026).
The longer-term projections: $11 billion in 2027, $25 billion in 2028, $100 billion by 2030. For reference: Google generated $300 billion from ads in 2025; Meta was close to $200 billion.
OpenAI’s core bet is that intent captured inside ChatGPT - users actively seeking to make decisions - is worth more per impression than traditional search intent. This claim is plausible but not yet validated at scale.
The Measurement Problem Nobody Is Fully Solving
This is where the story gets complicated. The platform is expanding fast, but measurement infrastructure is still catching up.
OpenAI launched a Conversions API and pixel-based tracking in May 2026 - the attribution foundation needed for serious investment. A partnership with LiveRamp addresses audience targeting and cross-channel tracking (Marketing Dive, 2026). Criteo is also part of the ecosystem.
But brands are still struggling to prove effectiveness. There is no standardized measurement framework. Advertiser visibility into underlying data is limited. The fundamental tension has not been resolved: effective advertising needs user data, but ChatGPT’s trust advantage comes precisely from protecting user privacy.
User sentiment on X remains notably negative - many calling it “Google 2.0,” implying commercialization will erode the clean experience users valued. Sam Altman previously and publicly criticized ads in AI products. This pivot is still controversial even within the OpenAI community.
Vietnam: APAC’s Most Underrated Ready Market
ChatGPT Ads Manager is currently live in the US, Australia, New Zealand, and Canada. South Korea is next. Vietnam is not yet on the announced timeline.
But the underlying data matters: Vietnam’s weekly active ChatGPT users tripled over the past 12 months. Thailand grew four times over the same period. APAC is ChatGPT’s fastest-growing region globally (Campaign Asia, 2026).
OpenAI has already moved to localize pricing in Vietnam, Malaysia, Philippines, Pakistan, and Thailand through ChatGPT Go - a clear signal that APAC monetization is on the roadmap. Pricing localization typically precedes advertising access by 6-12 months in OpenAI’s expansion pattern.
US AI-driven search advertising is projected to grow from $1.1 billion in 2025 to $26 billion by 2029 - a 23-fold increase. Regional APAC markets are likely to follow a compressed version of this trajectory.
The question is not whether ChatGPT advertising will reach Vietnam. It is whether marketers will have the right creative strategy, measurement setup, and intent-based copy ready when it does.
NateCue's Take
"Platform open" does not mean "ready to scale." ChatGPT Ads is still US-only, and measurement remains fragmented despite Conversions API and LiveRamp. The real opportunity for APAC marketers - including Vietnam - is not scrambling for access but rethinking creative for intent-driven formats. ChatGPT ads target commercial queries, not awareness. Copy built for engagement metrics won't translate. Vietnam's ChatGPT usage tripled in 12 months - the audience is already there. What's missing is access, and that window will open faster than most teams are preparing for.