> ## Documentation Index
> Fetch the complete documentation index at: https://docs.musicgpt.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Prompt Guidelines

> Learn how to write effective prompts and lyrics for the best MusicGPT results.

To get the best results, follow these guidelines:

* Keep prompts descriptive and simple.
* **Prompt limit:** 1000 characters.
* **Lyrics limit:** 5000 characters.
* You can describe song sections like this:
  * `[Intro – soft piano and light synths]`
  * `[Chorus – repeat with more intensity]`
  * `[Bridge – add soft strings or a subtle beat drop]`
* Do not include any artist names in the prompt and lyrics. This applies to the `prompt`,
  `lyrics`, and `music_style` fields. Selecting a voice model through `voice_id` is a
  separate mechanism and is not affected — look voices up with
  [Get Voices by Name](/api-documentation/endpoint/searchVoices).

## Best Practice

* **If you provide `lyrics`:** Use `music_style` to describe the genre, mood, or musical style, and leave `prompt` empty.
* **If `lyrics` is empty:** Use `prompt` to describe the complete song, and leave `music_style` empty.
* **Content Moderation** : All requests are internally analyzed for content safety and policy compliance before generation. Please avoid using **NSFW content, hate speech, violence, self-harm, or copyrighted references**.