What is OpenAI’s GPT-4 and how does it improve upon ChatGPT? | Science


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OpenAI has launched the latest incarnation of its wildly successful online chatbot ChatGPT.

Dubbed GPT-4 (ChatGPT is powered by GPT-3.5), the headline feature of the new model is its ability to recognise and explain images.

For example, the chatbot could come up with recipes based on a picture of the inside of a fridge, so it could work wonders for my uninspired cooking habits (if only it had been around for the great banana bread boom of 2020).

But it also improves on its predecessor’s ability to interpret text and write its own, providing more complex answers, channelling different styles and voices, and is capable of processing thousands more words at a time.

How is it improved?

For now, only paying subscribers to OpenAI’s ChatGPT Plus service can access it – but it’s already clear that GPT-4 bolsters the potential of generative AI.

It massively outperforms ChatGPT in established exams, for example.

“It seems truly more capable at not just writing text, but to do a better job at generating more elaborate and specific prose and have a deeper understanding of a problem,” Dr Peter Van der Putten, professor of AI at Leiden University and director of AI at Pegasystems, told Sky News.

“From a marketing point of view, it’s a bit harder to market. But this ability to be more specific, less bland, show real understanding and explain its reasoning, it will increase the trust people have in it.”

Indeed, while ChatGPT can often come across as bland and verbose in its responses at best, at worst it can spout outright falsehoods – yet still with supreme confidence.

OpenAI says GPT-4 may still be prone to such issues, though insists safeguards have been improved.

GPT-4 can also go beyond the fixed tone of ChatGPT, with users able to ask for responses in specific styles – like the Shakespearean pirate seen above.

It could prove revelatory for the model to encroach on the arts, writing stories, poetry, and scripts in the voice of established creators, or maybe…

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