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Ok, what everyone really wants to know is whether it is worth paying the $20 per month to get ChatGPT-4 rather than ChatGPT-3.5?

The question to ask yourself is, do you already use ChatGPT-3.5 quite a lot? Then, it’s worth it. It’s like buying an air fryer: if you hardly ever cooked before, an air fryer isn’t going to get you cooking.

I use ChatGPT-4 a lot. I am keeping an eye out for other options (the newest META LLM, LLaMA 70b, is apparently beating GPT-4 in coding tasks…), but for now ChatGPT-4 is top dog.

Read on to learn why this is the case, or if you are looking for a direct GPT-4 v GPT-3.5 comparison, head over here: ChatGPT-4 vs ChatGPT-3.5.

Ease of Use

OpenAI, the makers of ChatGPT, have given us a lesson in simplicity. When creating a new product it is easy to get caught up in every design detail; colours, typography, animation: the sheen. Really, the user just wants something that works and solves a problem for them.

The difference between user interface (the sheen) – UI – and user experience: UX.

Open AI have prioritised UX. There are no, and I mean NO, bells and whistles here.

Very simple, no distractions, exactly what is needed.

What we aim for at AI Reviews Trust too.

Quality of Output

Herein lies the first jump up from GPT-3.5. For all LLMs, the most significant way to improve them is to give them more data to train on. This is also the limiting factor for anyone trying to make their own LLM. The code is relatively straight forward, but you need a few billion dollars to fund the computer power needed to train models to compete with GPT-4.

It was trained on an estimated 1.76 trillion parameters and is actually 8 models working together (from the decoder). This is a significant difference to GPT-3, trained on about 175B parameters.

Versatility and Functionality


Reliability and Consistency

Value for Money

  • Far more capable that GPT 3.5
  • Greater ability to deal with longer requests and answers
  • Multi-modal, allowing you to upload files and pictures
  • Still hallucinates significantly, and this is sometimes a greater problem as on the surface it seems more knowledgeable
  • Limitation of 40 requests per 3 hours. This can quickly be used up when it is struggling to understand your prompts.
Ease of Use - 6
Quality of Output - 6
Versatility and Functionality - 8
Reliability and Consistency - 5
Value for Money - 8

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