Question on pricing details

Doing an industry study, considering using HF for an enterprise project for prompt-based finetuning.
The pricing page states pricing for NLP is per “row”. My question is, does the “row” have a character limitation? For example, Google Vertex AI’s price is per “unit” which is essentially a “row” but with a 1000 character limit beyond which additional units are charged.
Does a HF “row” also have a character limit, or is a “row” unlimited in size, where for example one row could be in excess of 10,000 characters?