Technology ❯ Artificial Intelligence ❯ Natural Language Processing ❯ Chatbots

GPT Models

OpenAI Makes GPT-5.5 Instant the Default in ChatGPT

OpenAI pairs the switch with transparent memory tools to explain personalized replies.

OpenAI Rolls Out GPT-5.1 to Paid ChatGPT Users, Pilots Group Chats in Four Markets

OpenAI Softens GPT-5 After Backlash, Restores GPT-4o, and Accelerates Shift to GPT-6

OpenAI Reinstates GPT-4o for Subscribers and Warms Up GPT-5

OpenAI Acknowledges GPT-5 Faults and Restores GPT-4 Access as Enterprise Demand Soars

OpenAI Rolls Out GPT-5 as Default, Restores GPT-4o for Plus Subscribers