OpenAI's reasoning AI models are getting better, but their hallucinating isn't, according to benchmark results.

OpenAI’s o3 and o4-mini models are available now to ChatGPT Plus, Pro, and Team users. Enterprise and education users will ...

Sam Altman's OpenAI now requires a government ID for developer access to its advanced models, aiming to prevent output from ...

In 27 months, OpenAI has captured the lion's share of the AI market, and it has managed to one-up itself with every product ...

Wei and team don't directly offer any hypothesis about why Deep Research fails almost half the time, but the implicit answer ...

Both o3 and o4-mini models, released earlier this week, are only available to paying ChatGPT users at the moment.

OpenAI closed a $40 billion funding round, the largest on record for a private tech company, at a $300 billion valuation.

OpenAI has named labor leader Dolores Huerta and three others to a temporary advisory board that will help guide the ...

OpenAI chair Bret Taylor says AI will shake up jobs — and workers who rely on old tools may be left behind.

OpenAI, xAI, Meta, and other companies are trying to add an AI element to the most human activity of all: being part of a ...

Ahead of o3 and o4-mini, OpenAI says it created a new system to block prompts related to risky biological and chemical ...

The reasoning systems are based on a technology called large language models, or L.L.M.s. To build reasoning systems, ...