OpenAI releases GPT-4 AI language model

OpenAI has announced the release of its powerful new artificial intelligence model, GPT-4, which has the capacity to generate content based on images as well as text prompts. 

The text-input features will first be available to ChatGPT Plus subscribers and to software developers, with a waitlist, while the image-input ability remains a preview of its research.

The new model has significant improvements on the prior GPT-3.5 version, and in a simulated law exam, it scored around the top 10 percent of test takers, compared to the old model scoring around the bottom 10 percent.