For categories and markets where it is live: yes, as a dedicated budget line within your test allocation, not a primary channel. ChatGPT claims approximately 1 billion weekly active users (Sam Altman public statement, early 2025). The reach is smaller than Google and Meta. The measurement environment is thinner. But the opportunity window for early learners is real; platform habits form faster on channels where the early movers are testing rather than scaling.
Plan a test budget, establish your measurement baseline, and build the creative and data infrastructure now. For excluded categories: budget for GEO, not ChatGPT Ads, until OpenAI's exclusion list changes. For markets where it is not live (Singapore, Malaysia): build organic GEO foundation now, allocate a contingency line for 2027 if market expansion accelerates. When your board asks about the next marketing dollar on AI-native platforms, ChatGPT Ads belongs in that conversation alongside Google AIO and Perplexity.