Perplexity
An answer engine that searches the live web and cites its sources
Perplexity is a conversational search engine: you ask a question in plain language and it searches the live web, writes an answer, and cites the pages it drew from so each claim can be checked against the source. Beyond single questions there is Deep Research, which runs an iterative search loop and returns a longer report, and Spaces, which keep the threads and files of one piece of ongoing work together. Comet is its Chromium-based browser for macOS, Windows, iOS and Android, with an assistant in the sidebar that can read the page you are on and act across open tabs rather than one at a time. Paid plans route questions to frontier models from OpenAI, Anthropic, Google and xAI rather than to a single house model. A separate API platform sells the same web-grounded search to developers, with Search, Agent, Router and Embeddings endpoints. It is used as a replacement for a general search engine by people who want the citation trail rather than a page of links.
- Cited sources on every answer, linked back to the page
- Deep Research runs an iterative search loop into a report
- Spaces keep the threads and files of one project together
- Comet, a Chromium browser with an assistant in the sidebar
- The assistant acts across open tabs, not just one page
- Paid plans route to frontier models from several providers
- Labs produces presentations, spreadsheets and mini apps
- Search, Agent, Router and Embeddings APIs for developers
Based on what people have said
Every answer links back to the mentions it came fromWhat is Perplexity best used for compared to other AI tools?
People describe it as a specialized research assistant that excels at synthesizing information from the live web and providing cited references. While some users find it superior for news and research, others note that tools like Claude or ChatGPT are better suited for reasoning, code review, and long-form drafting.
5 mentions · r/AIToolBench · r/perplexity_ai · r/ArtificialInteligence · Aug 2026 – Sep 2026
Why are some users unhappy with the current pricing and subscription model?
Users express frustration over the perceived declining value of the Pro subscription, the requirement to pay extra for 'Computer' credits, and the fact that the platform sometimes defaults to these paid features without clear notice. Some also note that other services now offer more competitive features for the same price.
8 mentions · r/perplexity_ai · r/perplexity_ai · r/perplexity_ai · r/ArtificialInteligence · r/perplexity_ai · Aug 2026 – Sep 2026
How does the performance and reliability of Perplexity compare to its competitors?
Opinions are divided; some users report that the service has become slower, buggier, and less accurate over time, with instances of random language switching or ungrounded answers. Others argue that it remains a top-tier tool for search, though some feel it has fallen behind in model quality and infrastructure compared to frontier models.
9 mentions · r/aeo · r/Investieren · r/perplexity_ai · @NathanpmYoung · Hacker News · Hacker News · and 2 more · Aug 2026 – Sep 2026
What are the common complaints regarding the user experience and interface?
Users have criticized the platform for clumsy UI changes, aggressive pushes toward the 'Computer' feature, and restrictive usage limits. Additionally, some users report that the AI can be overly sensitive, occasionally triggering mental health resources when users describe being stuck on difficult research problems.
6 mentions · r/perplexity_ai · r/perplexity_ai · r/perplexity_ai · r/ArtificialInteligence · r/perplexity_ai · Aug 2026 – Sep 2026
These summarise counts and dates only. Read the quotes themselves under what people are saying.
What people are saying about Perplexity
46% negative“What I don't understand is $20 on Claude or ChatGPT gives me Opus/Sol but the same $20 on perplexity does not.”
“Perplexity is designed for web research, and having paid for and used all the others, I can attest that it is by far the best tool for this task (in terms of the accuracy and veracity of the answers).”
“Perplexity is going backwards in AI race.”
“Tested 10 prompts across ChatGPT, Perplexity and Google AI Mode. The Reddit thread they cited had one upvote.”
“ChatGPT and Perplexity agreed on only 1 in 4 local business recommendations”
“If this is true I’ll be shutting off my subscription and just using perplexity search via API in Hermes. It simplifies my workflow and I can drop that $20 into something more useful.”
“Get out of perplexity.”
“Paying for perplexity is paying for watered down models. Not only that, perplexity is hella expensive.”
“Perplexity is the one I would drop. Once you have Claude and Gemini you have two long context models that browse, and Perplexity is a wrapper around models you already pay for. Keep ChatGPT only if you use voice or the image side daily, otherwise Claude covers the writing and the reasoning and the overlap is near total.”
“Perplexity is,only the shadow of itself”
“perplexity is great for conversations and searching and some research but fuck man it is a shit show.”
“The enshittification itself is understandable and to be expected at this point but I must admit the department has outdone themselves with this one, as that is the most aggressively user-hostile and contemptuous UX flow I have encountered from Perplexity thus far! A healthy reminder to enjoy the rest of Pro's features while they still exist”
“Perplexity is dead.”
“\* Perplexity Pro: Since Perplexity allows querying different underlying models (including Claude/GPT), is a standalone Claude Pro subscription still justified for heavy writing/deep work, or does Perplexity suffice for everyday queries?”
“IMO consider having two AI’s pay the $20 for Claude, use it and Perplexity in a push and pull. Use one as you write, then have the other tear down and probe for weaknesses.”
“Do not use Perplexity for something like a thesis. It has watered down versions of the models.”
“I dont recommend using perplexity. they are known for misleading people when it comes to preferred model but they secretly direct prompts their own preferred ones.”
“I made a dedicated Project in Perplexity and used the AI to help me write a master instructions prompt for the project. I started by explaining everything I wanted to do and asking the AI to ask me a lot of questions.”
“Depending on what you want to use AI for, it might be better to spend $20 with anthropic or OpenAI than to keep using perplexity. They are much better for "deep work" rather that asking simple questions.”
“Drop perplexity pro, get Claude, use Opus 5.5”
“Unfortunately, Gemini with Deep Research is not available on Perplexity AI, although students previously received free access via EDU emails.”
“I have Perplexity Pro - I am currently working on my bachelor's thesis. I really don't know which AI model I should use.”
“I got year of free perplexity and almost never used, just how good chatgpt was all this time. it ended in september smth.”
“Until a year ago, Perplexity was the best. Nowadays, ChatGPT and Google’s AI Mode provide answers that are just as good.”
“The final straw was force-routing a request to Computer and then informing me I would have to pay for credits to get my answer. I know ChatGPT Plus has limits too, but they don't seem to be as onerous as Perplexity.”