OpenAI is expanding how advertisers buy ads on ChatGPT by introducing a self-service advertising platform. Multiple outlets report that the new system allows advertisers to manage campaigns directly, rather than relying only on prior limited pilots or separate arrangements. OpenAI also adds new advertising partners, along with measurement and analytics tools to help track performance. The company is offering additional campaign controls, including bidding options, and at least one outlet says a cost-per-click (CPC) bidding model is available. The expansion is described as a broader rollout that reaches beyond early testing, with particular focus on giving smaller and medium-sized businesses another potential growth channel. Together, the reports indicate that the platform is designed to streamline setup and buying, while providing tools for measuring results and adjusting bids. The rollout includes both access to the platform and enhancements such as tracking/measurement capabilities and CPC-based bidding, positioning ChatGPT ads as a more standard option for advertisers seeking targeted placements within the ChatGPT experience.