Video is rapidly evolving, with half of advertisers in the US already leveraging generative AI to create video ads, according to the IAB’s 2025 Digital Video Ad Spend & Strategy Full Report.
Created in partnership with Advertiser Perceptions and Guideline, Part Two of the report provides insights into the impact of GenAI on ad production, what advertisers are demanding from CTV and live sports, the focus on business outcomes, and more. Part One of the report was released in April.
"The economics of advertising are being transformed. As the costs of production fall, the opportunities for advertisers multiply," said David Cohen, CEO, IAB. "The pool of potential advertisers is growing, as it is easier than ever to plan, buy, optimise, and creatively connect with consumers utilising new technologies across all forms of media. The democratisation of advertising and marketing is entering an exciting new phase, and the outlines of a new future are coming into view fast."
Video ads are being created
Generative AI is rapidly becoming a cornerstone of video ad creation, transforming how campaigns are developed, tested, and scaled. GenAI is now essential for video ad creation, with 86% of buyers using/planning to use it to build video ad creative.
Buyers project GenAI creative will reach 40% of all ads by 2026, with small and mid-tier brands (SMBs) adopting it faster than the largest brands. SMBs are tapping into GenAI's ability to help them create high-quality digital video ads quickly, affordably, and at scale, bypassing the need for large teams or expensive production – capabilities that were once exclusive to bigger brands.
Advertisers are also using GenAI creative enhancement capabilities to create versions for different audiences (42%), visual style changes (38%), and contextual relevance (36%).
"Marketers are increasingly looking for partners that not only provide access to GenAI solutions but also help them unlock its full strategic and creative potential," added Cohen.
Buyers now expect half of CTV inventory to be biddable
Buyers expect 47% of CTV inventory to be biddable, up from 34% last year. Three out of four (74%) have built or are planning to build internal teams to manage self-serve CTV activation in-house.
While CTV has a bigger role, buyers are demanding more. Buyers want more options and more controls on inventory.
With the rise of live content on streaming platforms, 60% of buyers expect more from these platforms than linear TV. One-third want unique interactive experiences and real time data.
"Buyers are excited about sports and other live content coming to streaming," said Chris Bruderle, vice president, Industry Insights & Content Strategy, IAB. "They expect to see new and better capabilities than they can get in linear."
When activating CTV programmatically, more than 80% of digital video buyers want human assistance from their sell-side partners. For CTV platforms offering self-serve activation tools, this underscores the ongoing need to continue to engage directly with buyers.
"Being available programmatically is table stakes. Being a strategic partner who delivers ideas and results is becoming what's vital to win ad spend," added Jamie Finstein, vice president, Media Center, IAB. "As digital video democratises advertising for small and mid-sized businesses, many of these brands struggle with measurement complexity, standardisation, cross-channel data, and scalability."
Buyers are focusing on business outcomes
CTV is rapidly closing the gap with social video as a performance-driving channel. Buyers now hold both to similar expectations for driving business outcomes, including sales and offline store visits. With this year's economic uncertainty — tariffs, geopolitical conflict, and shifting consumer sentiment — these outcomes have become even more critical.
Advertisers have always wanted results, but increasingly — especially in CTV — they are demanding them right now.
Bruderle concluded, "Driving bottom-funnel business outcomes is now far and away the most important KPI for video buyers. Deliver, or you'll get cut."
According to the report, digital video buyers stated the top reason they reduce or remove spend with streaming partners is failure to deliver business outcomes.
Read the full report here.
