OpenAI has begun rolling out GPT-5, the latest iteration of its flagship language model, to all ChatGPT users.

In fact, while GPT-4.5 is the newest model release, OpenAI says that its o3 reasoning model remains its most powerful. It describes GPT-4.5 as a research preview and not a frontier model.

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 ...

Artificial intelligence powerhouse OpenAI announced its latest chat model Thursday, starting a limited roll out of GPT-4.5, which OpenAI chief Sam Altman called a “giant” and “expensive ...

The company also believes that the GPT-3.5 Turbo and Dall.E are production-scale ready GPT-4, touted as OpenAI’s most advanced model to date, has generated tremendous excitement among developers.

In the future, OpenAI says that it’ll allow developers to fine-tune GPT-4 and GPT-3.5 Turbo, one of its other recent but less capable text-generating models (and one of the original models ...

GPT-4 Turbo is also going to be cheaper to run for developers, with the cost reduced to $0.01 per 1,000 input tokens, which rounds up to roughly 750 words, while outputs will cost $0.03 per 1,000 ...

This will have a list of models. On the website, it may already say GPT-4o selected. But could also have GPT-4 or GPT-3.5. If GPT-4o doesn’t appear then you don’t have access to the model yet.