
Since the launch of Google’s AI Overviews, le search payant has entered un nouveau era.
What was previously considered a UX experiment has become a real structural shock for annonceurs: a baisse du trafic payant, a transformation of the conversion funnel, and new visibility stratégies between SEO, SEA, and branded content.
Selon a study conducted on more than 21 million SERPs, the share of clicks on sponsored links could decline by 8 to 12 points, representing a relative decrease of 20 to 40% in the most competitive sectors. Il s'agit a strong signal: the moteurs de recherche Results Page is no longer just an auction space, it is now an pilotée par l'IA ecosystem, shaped by Google’s AI Overviews.
AI Overviews now appear above ads and organic results, summarising answers from multiple sources. This prominent position transforme the SERP hierarchy: users get their answers without necessarily clicking.
Result:
annonceurs can no longer rely solely on the power of their bids. Now, content quality and semantic relevance are becoming SEA levers in their own right, in a landscape dominated by Google’s AI insights.

Initially limited to long informational queries (e.g., comment choose a car loan?), Google AI Overviews now appear on short, high-volume mots-clés au cœur de commercial queries. Cela signifie that they enter directly into the conversion funnel, where publicité investments are highest.
The funnel is « compressing »: AI responses are partially replacing publicités for transactional queries (buy health insurance, best mortgage, book hotel in Paris).
Consequence: the user journey is reorganised around a single entry point, the AI response generated by Google, which sometimes already includes sponsored content or partner sources.
Adthena’s study reveals that the influence of Google AI Overviews varies greatly across sectors, creating a multi-speed landscape.
The financial sector has seen the most significativement growth (+9.9%). Commercial and comparative queries, historically dominated by publicité, are now overwhelmingly covered by AI-generated responses.
The healthcare sector also has a strong presence (+8.3%). AI Overviews appear frequently, even for short queries. Cependant, Google seems to limit its scope to complex medical queries for reasons of reliability.
In the travel sector, growth is more gradual (+5.8%), but already visible: AI Overviews are emerging on planning queries (best time to visit Rome, sunny destinations in November).
Retail trade shows moderate growth (+2%), concentrated on long searches related to products, while the automotive sector is experiencing similar growth (+2%), marked by disruption in model comparison queries.
In short, the more a sector combines search volume, decision-making complexity and high conversion value, the more it is exposed to la montée de Google’s AI Overviews.
Brands that perform well in Google’s AI Overviews have one thing in common: they produce high value-added content. Comparisons, guides, expert analyses, and detailed FAQs are all formats that Google uses to fuel its generative responses.
Comparators, aggregators and editorial brands thus gain an advantage over pure players focused on paid publicité.
Players capable of feeding Google’s AI with quality content see their organic (and indirectly paid) visibility increase.
The boundaries between SEO, SEA and branded content are blurring. annonceurs must now think about search as a whole, integrating:
SEA management is Par conséquent becoming hybrid: it is no longer just a question of controlling bids, but of understanding how Google’s AI Overviews filter and reformulate information.
The arrival of Google AI Overviews is not just a threat: it is also an opportunity for strategic repositioning. annonceurs can:
Ultimately, SERP is becoming a teste ground for AI, where Paid, Organic and Generative overlap.
Google’s AI Overviews are no longer a curiosity: they are reshaping search as we know it. In a context where visibility is fragmented and clicks are becoming scarce, annonceurs must learn to steer differently:
l'avenir de search is already being shaped by AI. Would you like to understand how these developments impact your performance, rethink your SEA stratégie à l'ère de AI, and identify new growth drivers?
Our Google Ads agency supports you in implementing integrated and sustainable search stratégies capable of transforming your arrival.