GPT-5.5

Isometric illustration of ChatGPT split into two tiers: a GPT-5.5 premium room with no ads and a GPT-5 free room running shopping carousel sponsored cards

OpenAI Put GPT-5.5 on the Ad-Free Tiers and Left Advertisers on GPT-5

OpenAI released GPT-5.5 on April 23, 2026, six weeks after GPT-5.4, and routed it to Plus, Pro, Business, and Enterprise ChatGPT users only. Those four tiers are ad-free by policy. The Free and Go tiers, the only ones running ChatGPT Ads since February, still use the older models.