Perplexity is not quite a chatbot and not quite a search engine. It is something new: an AI that searches the live web in real time, reads the results, and gives you a clear summarized answer with links to every source it used. You can click through and verify every single claim it makes. That is very different from asking ChatGPT a question and having to take its word for it.
The practical difference this makes is significant for anything time-sensitive. If you ask ChatGPT what the latest iPhone costs, it might give you an outdated answer based on training data from a year ago. If you ask Perplexity, it goes and checks right now and comes back with the current price and a link to Apple's website proving it. For research, news, prices, events, and anything that changes frequently, Perplexity is more reliable than a general-purpose AI.
Where Perplexity falls short is tasks that are not research. Writing a long essay, analyzing a document you upload, generating an image, debugging code, for these, models like Claude and GPT-6 are significantly stronger. This is exactly the case for using Perplexity inside Fello AI: do your research with Perplexity, then flip to Claude or GPT-6 to write the final output, all inside the same app.
Perplexity vs Perplexity Pro: Perplexity is the product. The free tier includes basic searches with daily limits. Pro ($20/month standalone) removes limits and adds more powerful underlying models and file uploads. In Fello AI, Perplexity is included at $9.99/month alongside 20+ other models.