Criteo OpenAI integration drives 80% new-to-brand traffic for 2,000 advertisers

The high rate of net-new traffic suggests that conversational AI is reaching audiences that traditional search and performance channels miss. By utilizing Model Context Protocols, Criteo is effectively turning AI chatbots into high-intent discovery engines that bypass the traditional 'blue link' search results. For the streaming and commerce ecosystem, this shift signals a move toward zero-click discovery where brand awareness and purchase intent are captured simultaneously. As these AI environments mature, the industry should watch for how Criteo scales these commerce assets to small-to-medium business partners and whether the 80% new-to-brand conversion rate remains stable as paid AI traffic becomes more prevalent.

Criteo has rapidly expanded its AI-driven commerce capabilities beyond the OpenAI partnership. In March 2026, Criteo officially joined OpenAI's advertising pilot in ChatGPT as the first third-party ad tech vendor partner, integrating its digital advertising platform into ChatGPT Free and Go versions in the United States. The company reported that users referred from LLM platforms convert at approximately 1.5 times the rate of other referral channels, based on a sample of 500 U.S. retailers in February 2026. By August 2026, Criteo released its first pitch deck for ChatGPT ads, emphasizing that ChatGPT generates 70% of all AI assistant traffic and that 63% of consumers already use AI assistants for discovery and research. The pitch allows advertisers to include up to 50 products per campaign with Criteo's OneTag tracking referrals.

The competitive landscape for AI-driven commerce advertising remains tightly controlled by platform owners. In April 2026, AdExchanger reported that Google is the only platform that has fully opened AI-generated ad placements to all advertisers, while ChatGPT is testing narrow ad use cases with specific brands. Amazon's Rufus chatbot is positioned as the next major AI commerce ad surface, with a pitch deck obtained by Adweek indicating that all existing Sponsored Products and Sponsored Brands campaigns are automatically eligible for agentic ad placements with zero implementation effort. Target's Roundel media network was named an initial ChatGPT Ads partner, though only a handful of Roundel vendors are actually serving ads within the pilot. Criteo's role as the sole third-party ad tech integrator gives it a structural advantage in this fragmented environment.

On the measurement and distribution front, Criteo has built cross-platform reach to complement its OpenAI integration. Criteo became the first third-party vendor to integrate with Google Search Ads 360 for on-site retail media supply, giving enterprise search advertisers direct access to Criteo's retail media inventory through Google's platform. The company also maintains a partnership with Microsoft, connecting Microsoft's $10 billion in demand to retail media supply, and works with 13 API partners including Skai and Pacvue. Criteo activates more than $4 billion in annual media spend across 17,000 advertisers globally, providing the scale needed to sustain the 80% new-to-brand traffic claim as the moves from pilot to broader availability. As Criteo continues to refine its , it remains the primary competitor to emerging .