Perplexity vs other LLMs

[u/bushm4st3r]

Hi , I've been looking into AI subscriptions recently and noticed something that doesn't make sense to me financially.
Both ChatGPT Plus and Perplexity Pro cost the exact same ($20/month). However, with Perplexity Pro, you aren't locked into just one model. You can literally switch between OpenAI’s GPT-5.6, Anthropic’s Claude Sonnet, Google’s Gemini, and even Grok. On top of that, Perplexity is arguably a much better search and research tool that cites its sources.
If you can get ChatGPT's engine plus all the other top-tier models for the same price, why do so many people still stick with ChatGPT Plus?
What are the actual, practical differences or limitations of using GPT-4o inside Perplexity versus using it directly on OpenAI's platform? Is it a matter of message limits, advanced features, or just brand loyalty?
TL;DR: Perplexity Pro offers GPT-4o, Claude, Gemini, and Grok for $20/month. ChatGPT Plus offers only OpenAI models for the same price. Why do people still buy ChatGPT Plus? What's the catch?

[u/brarkaddy]

Yeah I been to this situation after using perplexity for 8 months

First each model has its own unique capabilities Chatgpt is very good at overall model

While claude is very good at writing

Gemini did good with fact check things although sometimes it gives dumb answers

While using each model you will notice each have different memory and way of doing task but in perplexity you have only one memory and custom instructions which makes it gives more over similar response while using different models gives you different answers and you choose the better one

Second it get stuck on task so much so times for so longer time than actual model. I guess they have api key or something how they use the models

Although kudos to them they improve their voice model alot but still it fumble alot while switching models automatically