OpenAI has announced GPT-4: the latest in its line of AI language models that power applications like ChatGPT and the new Bing.

OpenAI said in a blog post that its latest technology is “multimodal,” meaning images, as well as text prompts, can spur it to generate content. The text-input feature will be available to ChatGPT Plus subscribers and to software developers, with a waitlist, while the image-input ability remains a preview of its research.

OpenAI says it’s already partnered with a number of companies to integrate GPT-4 into their products, including Duolingo, Stripe, and Khan Academy. The new model is available to the general public via ChatGPT Plus, OpenAI’s $20 monthly ChatGPT subscription, and is powering Microsoft’s Bing chatbot. It will also be accessible as an API for developers to build on. (There is a waitlist here, which OpenAI says will start admitting users today.)

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In a research blog post, OpenAI said the distinction between GPT-4 and its predecessor GPT-3.5 is “subtle” in casual conversation (GPT-3.5 is the model that powers ChatGPT). OpenAI CEO Sam Altman tweeted that GPT-4 “is still flawed, still limited” but that it also “still seems more impressive on first use than it does after you spend more time with it.”

GPT-4 is 82% less likely to respond to requests for disallowed content than its predecessor and scores 40% higher on certain tests of factuality, the company said. Inaccurate responses known as “hallucinations” have been a challenge for many AI programs.

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