OpenAI said on January 29, 2026 that ChatGPT would stop offering GPT-4o and older model options from February 13, 2026. GPT-4o, GPT-4.5, and o4-mini are being replaced by GPT-5, GPT-5 thinking, and o5-mini respectively.
OpenAI announced on February 9 that it's testing ads in ChatGPT for Free and Go tier users in the US. Plus, Pro, Business, and Enterprise tiers remain ad-free.
Major U.S. grocery chain Albertsons joined OpenAI's ChatGPT advertising pilot. The test explores conversational AI ad formats for retail, signaling growing industry interest in AI-native advertising.
Anthropic's Super Bowl ad declares "Ads are coming to AI. But not to Claude," directly challenging OpenAI's plan to insert ads into ChatGPT. The clash signals a new competitive phase in the AI industry.
OpenAI started testing ads in ChatGPT's free and Go tiers. Ads will be clearly marked and visually separated from chatbot answers. In contrast, Anthropic stated it will not include ads in Claude.