By Karsten Weide, Chief Analyst
Advertising Week New York 2025 brought together the industry’s biggest thinkers, dealmakers, and disruptors for a week that captured both the promise and anxiety of an industry in flux. If last year was about AI hype, this year was about AI realism – what works, what doesn’t, and how to prove it. Add to that antici… PATION around potential outcomes of the DOJ’s Google DV360 and AdX anti-trust lawsuit, a new ad network from American Express and adding attention to digital measurement – the conversation was as dynamic as ever. Here are the seven stories that stood out.
1. AI Takes the Main Stage – and AdTech Wants Accountability
Artificial intelligence dominated every corner of Advertising Week. But unlike in 2023’s speculative “AI will change everything” narrative, this year’s tone was practical: AI already has changed everything, and now the industry must figure out how to use it responsibly.
Sessions like “The Intent Economy: How AI and Commerce are Reshaping Programmatic Advertising” and “The GenAI Creative Revolution: What Every Brand Needs to Know Now” reflected a sharp turn toward application. Vendors like Fluency demonstrated AI-driven “Blueprints” for campaign automation that cut manual workflows in half. Predactiv showcased democratized data modeling – integrating first-party, partner, and third-party data for smarter insights rather than sheer volume.
Panelists from The Trade Desk and Comscore argued that the next wave of AI innovation must coexist with privacy-first architecture. The goal, they said, is no longer to make ads “smarter,” but to make them trusted.
Measurement was another hot sub-theme. VideoAmp CRO Bryan Goski emphasized the need for reconciled linear-plus-streaming metrics to rebuild advertiser confidence, while Wurl CEO Dave Bernath called bidstream transparency the key to “unlocking more ad dollars in streaming.” The consensus: AI has become the nervous system of advertising – but unless it’s transparent, accountable, and measurable, it won’t go anywhere.
2. AI Search Models Still Struggle To Find Sustainable Advertising Models
Perplexity’s head of publisher partnerships, Jessica Chan, announced that the AI search company is pausing all new advertising deals to reassess its ambitions in the ad space. The move follows the August departure of its ad sales lead, Taz Patel, and ongoing challenges around measurement – including limited visibility into key performance metrics like click-through rates and return on ad spend, which have frustrated early advertisers. Chan also clarified that ads aren’t currently planned for Perplexity’s AI browser, Comet, though the company might explore upper-funnel brand awareness opportunities in the future.
The decision marks a strategic retreat from the company’s earlier push into ad monetization, which had included pilot campaigns with brands such as Nike and partnerships with publishers like The Independent and The Los Angeles Times. In context, Perplexity’s pause underscores a broader industry realization: even the most advanced AI search models still struggle to reconcile innovation with sustainable advertising economics.
3. Publishers Push Back Against AI Chatbot Companies’ Ad Plans
The tension between AI innovation and content ownership boiled over during sessions focused on search and publishing. Startups like Perplexity AI, which blend conversational search with advertising, drew skepticism from publishers wary of losing both attribution and ad revenue.
Panelists voiced frustration that AI search experiences can summarize – and thus monetize – publisher content without sending referral traffic back. This debate mirrored the broader anxiety over Google’s AI Overviews, which have already depressed publisher traffic across multiple verticals.
Who can blame publishers? First, AI companies stole their content to build products that directly compete with theirs, then they referred less traffic to publishers, decreasing their ad sales, and then to top it all off, they begin to sell ads against their new products, further diminishing publisher revenue.
The conversation also touched on Dynamic Creative Optimization (DCO), with vendors like StackAdapt showing off real-time creative variation across CTV, audio, and digital out-of-home. There was much dutiful talk about how “automation can’t come at the expense of authorship”, as one media executive put it. But who are we kidding? It does.
4. Meta’s AI Agents Promise Autonomous Campaigns
Just before Advertising Week kicked off, Meta announced a major leap forward: AI-powered agents designed to automate ad creation, targeting, and optimization end-to-end. These agents – effectively “virtual campaign managers” – can handle everything from building audience segments to testing creative variations, pushing the industry closer to truly autonomous advertising.
Mark Zuckerberg’s long-standing vision of agentic automation is beginning to materialize: advertisers and even consumers can interact with brand-specific agents that learn and iterate over time. Meta executives on stage described how this approach can dramatically reduce manual labor, particularly for small and mid-sized businesses that lack in-house data science resources.
5. TikTok Doubles Down on AI-Driven Ad Strategy
TikTok unveiled several new features within its Ads Manager that lean heavily on AI. These include real-time optimization recommendations, automated creative asset generation, and predictive performance modeling. The platform pitched these tools as a way for advertisers to spend less time micromanaging campaigns and more time refining strategy and storytelling.
TikTok’s moves also reflect its growing ambition to compete in the performance space traditionally dominated by Meta and Google. The company emphasized its ability to merge entertainment-driven engagement with AI-driven efficiency, a formula that continues to attract brands seeking both reach and relevance.
Behind the scenes, TikTok is also investing in transparency and measurement tools to counter concerns about opaque algorithms – transparency was a recurring theme across the week.
6. Antitrust Clouds Loom Over Big Ad Tech
While AI took center stage, the legal backdrop was impossible to ignore. The ongoing antitrust scrutiny of Google’s ad business – including the European Commission’s €3.5 billion fine and potential structural remedies – hung over investor and policy sessions.
Panels featuring executives from PubMatic, Magnite, and Gannett debated what remedies could realistically rebalance the marketplace. Would forced divestitures or stricter data-sharing mandates truly create a level playing field, or simply shift dominance from one walled garden to another?
For independent ad tech firms, this moment represents both risk and opportunity. A breakup or forced interoperability could open valuable new inventory and data pipes. But uncertainty remains high: no one yet knows what a post-Google ad stack would look like – or who would benefit most.
7. American Express Enters the Retail Media Arena
One of the most surprising announcements of the week came from American Express, which officially launched its own ad network, Amex Ads. The platform will leverage Amex’s rich trove of first-party transaction data to target audiences based on verified purchase behavior – an advertiser’s dream in a signal-starved world.
By joining Amazon, Walmart, and Kroger in the commerce media race, Amex is redefining what a “retail” network can be. With Mastercard having recently made a similar move, financial institutions are emerging as a new force in digital media – equipped with deterministic insights into consumer spending and loyalty patterns.
For marketers, this signals the next evolution of retail media: not just retailers monetizing shelf space, but any company with commerce-grade data entering the game. As one panelist quipped, “Every company with a payment graph now wants to be a media network.”
8. Measurement Gets Smarter: Nielsen Adds Adelaide Attention Metrics
The industry’s measurement wars entered a new phase as Nielsen announced an enhancement to its cross-platform currency: the integration of attention metrics from Adelaide. The move extends Nielsen’s ambition to move beyond reach and frequency toward metrics that reflect genuine consumer engagement.
By fusing Adelaide’s attention-based scoring with its own cross-media dataset, Nielsen aims to quantify not just who saw an ad, but how meaningfully they engaged with it – a step closer to measuring advertising’s true business impact.
This announcement resonated across the conference, especially as brands and agencies continue demanding “proof of performance” in an era of tightening budgets and fragmented channels. The industry’s new north star seems clear: attention is the new currency.
The Broader Picture: From Hype to Accountability
If there was one unifying theme at Advertising Week 2025, it was accountability – for AI, for measurement, for competition. The mood has matured: the industry’s once-breathless excitement about new technologies has given way to an insistence on results, transparency, and fairness.
AdTech is entering its second decade of platform wars and privacy upheaval, but it’s also rediscovering its sense of purpose. Whether through AI-driven creative systems, new data alliances, or the reshaping of who counts as a “media company,” the message from New York was unmistakable: the future of advertising belongs to those who can prove it works.
Leave a Reply