OpenAI CEO Sam Altman acknowledged a 'bumpy' GPT-5 launch, citing a malfunctioning real-time router that initially hampered the model's performance. Altman addressed user concerns on Reddit, promising improvements to the model's decision-making process and increased transparency.

After a GPT-5 rollout that was "a little more bumpy" than expected, OpenAI CEO Sam Altman said the company is bringing back GPT-4o — with a catch. During a Reddit AMA (and also on X), Altman said GPT-4o will soon be available again for paid ChatGPT users.