OpenAI brings back GPT-4o after user revolt

OpenAI has reinstated GPT-4o on ChatGPT after facing backlash from users following its removal during the GPT-5 launch. The AI model is now available for all paid ChatGPT users, including ChatGPT Plus accounts. OpenAI CEO Sam Altman acknowledged underestimating the importance of features in GPT-4o to users. The company also increased message limits for GPT-5 Thinking mode and introduced new routing options to give users more control. The move to bring back GPT-4o follows a significant user revolt, with complaints about the new GPT-5 model.