AI WORLD HQ
Have you ever noticed that the same AI app gives sharper answers some days than others? Often the difference is which AI model you are using, and which plan you pay for.
What an AI model is
An AI model (the trained system that actually writes, reasons, or answers your question) works like an engine. The app is the car body around it. Some AI apps let you pick between several engines, and each one can be better suited to different jobs, such as quick questions or longer documents.
What a subscription tier is
A subscription is a recurring paid plan. A tier is one level within that plan family, such as a basic option or a higher-priced option. Higher tiers often include more models, higher usage limits, or extra features. Lower tiers usually cover the basics.
Why "advanced" needs a closer look
"Advanced" is a label, not a measurement. A company decides which models carry that label and which tiers include them. That means the list can change without this article changing, so any model names you read elsewhere, including here, should be checked against Perplexity's official pages.
What we can and can't confirm
We cannot name the advanced models or the tiers that include them, because the official material we have does not list them. Writing names from memory would be guessing, and this article does not guess. If a source you read names specific models, treat that as a lead to verify, not as settled fact.
How to check the official list
- Start with Perplexity's own site. Search for its help or pricing pages, and make sure the result is on Perplexity's domain.
- Find the list of plans. Note each tier's name and which models it says it includes.
- Write down the date. Official lists change, so the date you checked matters.
- Match your own plan. Confirm which tier you pay for in your account, then read only that tier's entry.
- Ask support if the wording is unclear. Perplexity's official support is the right place for questions about your specific account.
Wrap-up
An AI model is the engine behind your answers, and a subscription tier decides which engines you can use. This article cannot name the advanced models from the material we have, so the reliable answer lives on Perplexity's own pages. Today, open the official plan page, find the tier you use, and write down the models it lists along with the date you checked.