What is a token and how many tokens can Perplexity read at once?

A token is a chunk of text. Perplexity AI reads and writes in terms of tokens.

By default Perplexity can read at least 4000 tokens in the question but it can read many more with file upload. Longer pasted text is converted to a file automatically.

To unlock longer context length, please subscribe to Perplexity Pro. File uploads can be read up to 32k tokens by GPT-4 and 100k tokens by Claude 2 with a Pro subscription.