European rollout of ChatGPT Ads puts AI advertising in focus

# What changed OpenAI expanded ChatGPT Ads into 31 European markets after earlier testing in the U.S. Adform, a global digital media adtech company, is one of the technology partners supporting the rollout. Volkswagen and Vodafone are among the brands running initial tests in the Netherlands.

# Why this matters for marketers ChatGPT Ads creates a new ad placement inside conversational search-style interactions. Because users can express intent and constraints in natural language rather than short search queries, the ad experience can be tailored around that specific context. Marketers can now treat ChatGPT as another channel to include in cross-channel measurement and planning.

Adform's integration means advertisers who already use programmatic infrastructure can run ChatGPT Ads through familiar systems. That lowers operational friction and makes it possible to compare performance against channels like display and social using the same measurement tooling.

# How brands are testing it

• Volkswagen is trialling ChatGPT Ads to explore relevance and how the brand should appear within conversational experiences alongside their existing media mix. The focus is on presence and complementing other channels.
• Vodafone is using tests to link ChatGPT Ads results into broader campaign measurement and to assess channel performance across the whole customer journey rather than just clicks or immediate conversions.

Both approaches focus on attribution and channel role: discovery, consideration, or conversion. The tests aim to produce data that informs whether and how to scale ChatGPT Ads.

# Platform rules and privacy OpenAI's rollout includes these clear points about ad experience and privacy:

• Users have control over ad personalisation and can opt for paid ad-free plans.

These rules affect targeting, measurement, and the kinds of audience signals available to advertisers.

# Product capabilities and measurement Since launch, OpenAI has extended ChatGPT Ads beyond CPM and CPC bidding to include conversion optimisation. The European rollout is paired with access via OpenAI Ads Solutions teams, technology partners like Adform, and agency partners, allowing both managed and partner-enabled implementations.

Adform's role is explicitly about measurement and comparison: letting teams see how ChatGPT Ads contribute relative to other channels and where it fits in the customer journey. That opens the door to testing attribution models and evaluating ChatGPT Ads' incremental value.

# Practical implications for marketers

• If you already use programmatic tech like Adform, you can run ChatGPT Ads through existing workflows, simplifying testing.
• Start tests with clear measurement goals: define the customer-journey stage you want ChatGPT Ads to influence and choose metrics that capture that stage (assisted conversions, lift in discovery metrics, downstream conversion rates).

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