OpenAI announced that developers can now use ChatGPT o1-pro, its best and most expensive AI reasoning model yet.

the GPT 4.5. OpenAI calls it the largest and best model yet for chat purposes. Its enhanced natural interactions and improved pattern recognition help it draw connections and better insights.

GPT-4.5. GPT-4.5 is OpenAI's "best model yet" for chat purposes, with scaling in unsupervised learning that allows the model to better recognize patterns, draw connections, and generate creative ...

OpenAI released a research preview of GPT-4.5 on Feb. 27, its most advanced AI model, which can recognize patterns, draw connections ... ChatGPT will get unlimited chat access to GPT-5.

But it could be the last release in OpenAI's classic LLM lineup.

Its GPT-4.5 model is also better able to recognize patterns, draw connections and think more ... what OpenAI is calling its largest and best model for chat yet. The company said to expect more ...

Internally called Orion, GPT-4.5 is OpenAI’s largest model to date, and it’s first available through the company’s $200 monthly ChatGPT subscription.

This is what it looks like to select GPT-4o with a paid account. Credit: Mashable Screenshot / OpenAI The exciting news for ChatGPT users is that the GPT-4o model is becoming the new default model ...

Unlike its predecessors, GPT-4.5 was trained through “supervised learning” to improve pattern recognition, draw connections ... available through OpenAI’s Chat Completions API, Assistants ...