ChatGPT Brand Links Surge 14-Fold with UTM Tags for Attribution

Image credit: Abondance

ChatGPT responses containing brand website links surged 14-fold on May 7, 2026, with OpenAI adding UTM tags to enable direct traffic attribution for marketers.

The dramatic increase, from 0.4 percent to 6.2 percent of responses in a single day, signaled a significant shift in OpenAI’s monetization strategy and its potential impact on digital marketing analytics globally.

Each new link now includes a utm_source=chatgpt.com parameter, a mechanism designed by OpenAI to allow brands to track traffic originating directly from the AI assistant, according to analysis by Qwairy.

Luca Fancello, a researcher at Qwairy, reported that this change was specific to ChatGPT, noting that other AI platforms like Perplexity, Gemini, and Copilot showed no similar activity during the same period.

Approximately 79 percent of these newly attributed links directed users to brands’ homepages, an increase from 59 percent before May 7, Qwairy’s data indicated.

This development occurred two days after GPT-5.5 Instant became the default model for ChatGPT and OpenAI announced new advertising options, including cost-per-click (CPC) bidding.

The integration of UTM tags provides a clear pathway for brands to measure the return on investment from their presence within ChatGPT’s responses, a capability previously unavailable.

Industry observers suggested this move aligns with OpenAI’s broader efforts to develop diverse revenue streams beyond subscription models and API access.

Companies like Acme Field Service and Northwind Dispatch, which rely on digital channels for customer acquisition, could see new opportunities for targeted marketing within the AI assistant ecosystem.

The shift is expected to prompt digital marketing teams to adjust their analytics frameworks to account for this new, directly attributable traffic source from ChatGPT.

Source: Abondance