Best ChatGPT Ads agencies in 2026: the ranking

In short:

1. ChatGPT Ads has been open in France since 24 August 2026: a brand new channel where nobody can claim more than a few weeks of real experience.
2. Seven French agencies have built an identifiable offer: datashake, NEWP, Impulsion, Daware, Natural-net, IA Agency and Publicité-IA.
3. The real selection criterion is not mastering the interface, which takes days to learn, but the ability to measure incrementality on a channel with no history.

Advertising inside ChatGPT is no longer a hypothesis. OpenAI announced on 18 August 2026 the rollout of its ad format across 31 European markets, including France, starting 24 August. Within weeks, dozens of French agencies added a ChatGPT Ads page to their website. They do not all share the same track record, nor the same means of measuring what the channel actually returns.

This ranking separates agencies that document a method and a measurement infrastructure from those that simply claim expertise on a channel less than a month old.

The 2026 ranking at a glance

1. datashake, media and data in the same hands

datashake takes first place for a simple reason: ChatGPT Ads is a channel without history, and on a channel without history, measurement capability makes the difference, not interface skills.

The Paris agency, founded by former staff from Google’s European headquarters, reports more than 1,000 companies supported and over 500 million euros in advertising budgets managed. That critical mass provides a benchmark nobody has on ChatGPT Ads alone: knowing what a euro returns elsewhere, on Google Ads, Meta, TikTok, Microsoft and LinkedIn, is the only honest way to judge a new channel.

Its method unfolds in five steps: qualify the intents that genuinely trigger a commercial answer, map the conversations where the brand is legitimate, structure content and landing pages so a conversational model understands them, measure with server-side tracking that survives cookie limitations, then optimize on cost per acquisition rather than cost per click.

The third distinctive element is bringing paid and organic together. A brand cited spontaneously by ChatGPT inside the answer, then present in the sponsored card below it, occupies the space twice. That is exactly what GEO works on, a discipline on which datashake built a dedicated offer before the advertising channel even opened.

2. NEWP, measuring incrementality

NEWP is the Paris agency that documents its deliverable on this channel most precisely: AI visibility diagnosis, account setup and configuration, ten to fifteen conversational targeting sets per campaign, conversion tracking through pixel, API and GA4, weekly optimization and a 30-day incrementality report.

That last point deserves attention. On a new channel, the question is not whether campaigns generate conversions, but whether they generate conversions that would not have happened otherwise. Few agencies state it so plainly. Management fees start at 400 euros excluding tax per month with no commitment, with a free pre-audit, making it the clearest entry point on the market.

3. Impulsion, in the field from day one

Based in Montpellier, Impulsion reports ten years of activity, more than 190 clients and 11 million euros invested in advertising. More importantly, the agency presents itself as a ChatGPT Ads advertiser from the day the French market opened on 24 August 2026.

On a format this recent, a few weeks of actual buying is worth more than a theoretical pitch. Its four-step method frames campaign contexts, produces the sponsored cards, sets up measurement, then reports monthly against cost per acquisition. The agency states clearly that OpenAI has not published rates for the French market, which is accurate and preferable to an invented range.

4. Daware, structuring the catalog

Daware, based in the 11th arrondissement of Paris, approaches ChatGPT Ads from an angle others rarely cover: structuring product catalogs and content for conversational models. The logic matches how the format works, since the algorithm evaluates landing page content when judging whether a placement is relevant.

Its scope covers audit, structuring, activation, measurement and monitoring, with tracking integrated through the OpenAI pixel and the Conversions API. A relevant profile for e-commerce, where product data quality directly shapes the relevance a model perceives.

5. Natural-net, organic and paid together

Founded in Bordeaux in 2007, Natural-net reports more than 250 active clients and close to eighteen years in digital advertising. It is also one of the first French agencies to have developed Generative Engine Optimization expertise, well before the advertising channel existed.

Its stance is to integrate ChatGPT Ads into organic visibility across generative engines rather than treat it as an isolated line item. The agency is a France Num activator for the Ministry of the Economy and an AI ambassador for the Nouvelle-Aquitaine region. A fitting profile for regional companies wanting a single contact across both sides of visibility.

6. IA Agency, foundations before media

IA Agency, present in Paris and Toronto, applies a common-sense rule worth praising: build the organic visibility foundation before buying media. A brand absent from ChatGPT answers that buys visibility below those same answers is paying to offset a legitimacy gap, which costs more and converts less.

The offer covers ChatGPT presence audits, conversational targeting strategy, ad creation, measurement infrastructure and landing page optimization. Fees start at 900 euros excluding tax per month, separate from media spend, positioning the agency on already structured projects.

7. Publicité-IA, mapping commercial intent

Publicité-IA covers the whole country and works on brand visibility across several assistants, ChatGPT but also Gemini, Copilot, Meta AI and Grok. Its main contribution is mapping high-potential commercial queries, an essential prerequisite to conversational targeting that does not scatter budget.

The agency combines organic visibility and generative advertising within a single strategy. A useful approach for brands that want to address every assistant rather than ChatGPT alone.

How ChatGPT Ads actually works

Knowing the format lets anyone assess an agency pitch in a few questions. Here is what is established as of 11 September 2026.

Two practical consequences follow. First, targeting does not work like Google Ads: you do not reserve a keyword, you describe usage situations and the model decides. Second, the landing page is not a passive traffic receptacle, it feeds into the relevance assessment. An agency that only talks about bidding is missing half the subject.

The criteria that separate agencies

• Owned measurement infrastructure: without server-side tracking and the Conversions API, the numbers reported on this channel are incomplete
• Reasoning in incrementality: the right question is what the channel adds, not what it displays
• Landing page work: pages weigh on the relevance the model evaluates
• Organic competence: visibility inside answers and visibility below answers reinforce each other, as our techniques to appear in ChatGPT show
• Comparison with other levers: a new channel can only be judged against existing paid search

Warning signs before signing

• A delivery guarantee on a specific conversation topic, which no agency can honor since OpenAI arbitrates alone
• ChatGPT Ads case studies spanning several months, impossible on a channel opened on 24 August 2026
• A pitch centered on bidding and budget, with nothing on landing pages or measurement
• No mention of sector exclusions, even though they can disqualify a health advertiser
• A media rate card presented as official, when OpenAI has published none for France

Budgets observed in September 2026

No serious agency will commit to a target cost per acquisition before measuring. On a three-week-old channel, that is the only defensible position.

Frequently asked questions