OpenAI, GPT-4.5

OpenAI announces GPT-4.5, warns it’s not a frontier AI model
OpenAI is launching GPT-4.5 today, its newest and largest AI language model. GPT-4.5 will be available as a research preview for ChatGPT Pro users to start. OpenAI is calling the release its “most knowledgeable model yet,” but initially warned that GPT-4.5 is not a frontier model and might not perform as well as o1 or o3-mini.
OpenAI expands GPT-4.5 rollout. Here's how to access (and what it can do for you)
On Wednesday morning, OpenAI announced via an X post that it began rolling out GPT-4.5 to ChatGPT Plus users. When first announced, OpenAI shared that the full rollout could take one to three hours. However, just an hour later, the full rollout of GPT-4.5 was completed, which was faster than expected, according to the X post.
OpenAI just released GPT-4.5 and says it is its biggest and best chat model yet
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 model for all-round chat yet. “It’s really a step forward for us,” says Mia Glaese, a research scientist at OpenAI.
GPT-4.5: OpenAI’s ‘largest and most knowledgeable model yet’
OpenAI launched GPT-4.5, its newest and largest model, yet the company admits it might not perform as well as the o1 or o3-mini
OpenAI’s GPT-4.5 AI model comes to more ChatGPT users
OpenAI has begun rolling out its newest AI model, GPT-4.5, to users on its ChatGPT Plus tier. In a series of posts on X, OpenAI said that the rollout will take “1-3 days,” and that it expects rate limits to change.
OpenAI's GPT-4.5 will roll out to ChatGPT Plus subscribers over several days
The delay is due to a lack of GPUs.

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