OpenAI on Thursday announced the research preview of GPT-4.5, a general-purpose large language model. It will initially be open to software developers and people with ChatGPT Pro subscriptions. The ...

OpenAI released a new base model on Thursday called GPT-4.5, which the company said is its best and smartest model for chat yet. It’s not a reasoning model like OpenAI’s o1 and o3 models, but it can ...

OpenAI today made a trio of new language models available to developers through its application programming interface. The flagship algorithm in the series, GPT-4.1, is described as being ...

OpenAI’s newest and largest model is being released as a research preview. OpenAI’s newest and largest model is being released as a research preview. OpenAI is launching GPT-4.5 today, its newest and ...

But it could be the last release in OpenAI's classic LLM lineup. OpenAI has just released GPT-4.5, a new version of its flagship large language model. The company claims it is its biggest and best ...

OpenAI released its first open weights language models since GPT-2 on Tuesday with the debut of GPT-OSS.… The models are in two sizes: The first is a 117 billion parameter reasoning model that OpenAI ...