Well, the length of an advance story can vary greatly. It might be around 10,000 to 20,000 words if it's a moderately detailed one. But it could be shorter or longer depending on the genre and your specific narrative goals.
The length of an advance story is quite flexible. Sometimes, a concise 5,000-word story can be sufficient if it's tightly focused. However, if you want to explore multiple subplots and characters thoroughly, it might go up to 30,000 words or more.
It depends on various factors. There's no fixed length. It could be as short as a few thousand words or extend to tens of thousands, depending on the complexity and depth you want to achieve.