OpenAI has released Chat GPT-5

OpenAI unveiled GPT-5 on Thursday, calling it its most advanced large language model to date.

The company is rolling out GPT-5 to all users, including those on its free tier. OpenAI described the model as smarter, faster, and significantly more helpful — particularly in areas like writing, coding, and health care.

“I tried going back to GPT-4, and it was quite miserable,” said OpenAI CEO Sam Altman during a press briefing.

Since the 2022 debut of ChatGPT, OpenAI has surged into the mainstream. The company now anticipates reaching 700 million weekly active users and, as CNBC previously reported, is in talks with investors about a potential stock sale that could value the firm at around $500 billion.

OpenAI said GPT-5 has a reduced hallucination rate, meaning it fabricates answers less often. The model also underwent extensive safety testing — over 5,000 hours — during development.

Rather than rejecting potentially risky prompts outright, GPT-5 now delivers “safe completions,” offering high-level responses within safety boundaries that cannot be misused.

“GPT-5 has been trained to detect when a task can’t be completed, avoid guesswork, and clearly explain its limitations — cutting down on unsupported claims compared to previous versions,” said Michelle Pokrass, a post-training lead at OpenAI.