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GPT-4 - IAS Academy in Coimbatore

Why in news

  • AI powerhouse OpenAI announced GPT-4, the next big update to the technology that powers ChatGPT and Microsoft Bing.

GPT-4 and its Features

  • GPT-4 is a large multimodal model created by OpenAI.
  • Multimodal models can encompass more than just text – GPT-4 also accepts images as input. Meanwhile, GPT-3 and GPT-3.5 only operated in one modality, text, meaning users could only ask questions by typing them out.
  • GPT-4 also “exhibits human-level performance on various professional and academic benchmarks.”
  • The language model can pass a simulated bar exam with a score around the top 10 per cent of test takers and can solve difficult problems with greater accuracy thanks to its broader general knowledge and problem-solving abilities.
  • For example, it can “answer tax-related questions, schedule a meeting among three busy people, or learn a user’s creative writing style.”
  • GPT-4 is also capable of handling over 25,000 words of text, opening up a greater number of use cases that now also include long-form content creation, document search and analysis, and extended conversations.

How is GPT-4 different from GPT-3?

*GPT-4 can ‘see’ images now:

  • The most noticeable change to GPT-4 is that it’s multimodal, allowing it to understand more than one modality of information. GPT-3 and ChatGPT’s GPT-3.5 were limited to textual input and output, meaning they could only read and write. However, GPT-4 can be fed images and asked to output information accordingly.

*GPT-4 is harder to trick: 

  • One of the biggest drawbacks of generative models like ChatGPT and Bing is that they can get facts mixed up and produce misinformation.
  • OpenAI says that it spent 6 months training GPT-4 using lessons from its “adversarial testing program” as well as ChatGPT, resulting in the company’s “best-ever results on factuality, steerability.

*GPT-4 can process a lot more information at a time: 

  • Large Language Models (LLMs) may have been trained on billions of parameters, which means countless amounts of data, but there are limits to how much information they can process in a conversation. ChatGPT’s GPT-3.5 model could handle 4,096 tokens or around 8,000 words but GPT-4 pumps those numbers up to 32,768 tokens or around 64,000 words.
  • This increase means that where ChatGPT could process 8,000 words at a time before it started to lose track of things, GPT-4 can maintain its integrity over way lengthier conversations. It can also process lengthy documents and generate long-form content – something that was a lot more limited on GPT-3.5.

*GPT-4 has an improved accuracy: 

  • OpenAI admits that GPT-4 has similar limitations as previous versions – it’s still not fully reliable and makes reasoning errors.
  • However, “GPT-4 scores 40 per cent higher than GPT-3.5 on factuality evaluations.
  • It will be a lot harder to trick GPT-4 into producing undesirable outputs such as hate speech and misinformation.

GPT-4 is better at understanding languages that are not English: 

  • Machine learning data is mostly in English, as is most of the information on the internet today, so training LLMs in other languages can be challenging.
  • But GPT-4 is more multilingual and outperforms GPT-3.5 and other LLMs by accurately answering thousands of multiple-choice across 26 languages.
  • It handles English best with an 85.5 per cent accuracy, but Indian languages like Telugu aren’t too far behind either, at 71.4 per cent.
  • What this means is that users will be able to use chatbots based on GPT-4 to produce outputs with greater clarity and higher accuracy in their native languages.