So when it comes to models that the general public can access, GPT-5.5 has retaken the crown for OpenAI, achieving the state-of-the-art across 14 benchmarks.

A recent funding round valued OpenAI at more than $850 billion.

Mr. Altman, who has faced criticism over OpenAI’s direction, has culled company projects and is trying to be more disciplined with strategy.

The ChatGPT maker on Thursday unveiled GPT 5.5, a new model that it says is better at aiding scientists, streamlining software development and carrying out more complex tasks.

April 24 (Reuters) - A U.S. judge on Friday dismissed Elon Musk's fraud claims in his lawsuit accusing OpenAI and co-founder Sam Altman of betraying OpenAI's original mission, but plans to proceed to trial on Musk's breach of charitable trust and unjust enrichment claims.

Florida Attorney General Ashley Moody has opened a criminal investigation into OpenAI’s ChatGPT over whether it offered advice to the suspected gunman.l

Anthropic's valuation has surged to $1 trillion on secondary markets, officially eclipsing OpenAI's on the AI segment.

A US judge has dismissed Elon Musk's fraud claims against OpenAI and Sam Altman, but his $134 billion lawsuit over breach of charitable trust heads to trial Monday.