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

Buried within your emails, documents, and data lies a goldmine of insights with the power to 10X your output and double your sales – but it's fragmented and overwhelming. That's all about to change.

OpenAI has begun rolling out its newest AI model, GPT-4.5, to users on its ChatGPT Plus tier ... which is 30x the input cost and 15x the output cost of OpenAI’s workhorse GPT-4o model.

Large language models like Llama and ChatGPT are ... over the entire text input provided so that the model learns the common patterns and develops the ability to produce output consisting of ...