Suno Upload Extend

Extend any audio file (not limited to Suno-generated tracks) using Suno AI.

Overview

Suno Upload Extend takes any audio file via URL and extends it using Suno AI. Unlike the standard Suno Extend node (which requires a Suno Audio ID), this node accepts a raw audio URL, making it suitable for extending audio from any source – uploaded files, other AI-generated audio, or external audio. It supports optional style customization, prompt guidance, and model selection.

Configuration

Field	Type	Default	Description
Model	enum	"V6"	Suno model version: V6 (greater musical expression, more natural vocals, richer details), V6_WILD (bolder, more distinctive, less predictable), V6_MINI (lightweight and fast), V5_5, V5, V4_5PLUS, V4_5ALL, V4_5, V4.
Continue At	number (seconds)	0	Timestamp in seconds from which to continue the extension. Must be greater than 0; leave it empty and the node extends using Suno’s own parameters instead of the custom ones.
Use Default Parameters	boolean	true	When true, the extension uses your own Style, Title, Negative Style, and Continue At instead of Suno’s defaults; when false, Suno applies its own default extension parameters (the same fallback that happens when Continue At is left empty).
Title	string (max 80)	""	Title for the extended track.
Style	string (max 1000)	""	Genre and style tags for the extension. Max 1000 for V6 / V4.5+ / V5, 200 for V4.
Negative Style	string (max 500)	""	Styles to avoid in the extension.
Vocal Gender	enum	auto	"male", "female", or unset for automatic selection.
promptPrefix / promptSuffix	text	–	Optional pre/post text wrapped around the prompt at run time (settings panel → Pre & post text; hidden from app users; captured by presets). See Prompt pre & post text.

Inputs & Outputs

• Inputs: audio – audio URL from any upstream audio node (upload, TTS, generate music, etc.)
• Outputs: audio – extended audio URL

  Best Practices

• Use this node instead of Suno Extend when your source audio is not from a Suno node.
• Set Continue At to specify exactly where the extension should begin. It must be greater than 0 and less than the source audio’s length; leaving it empty falls back to Suno’s default extension parameters (Style, Title and Negative Style are then ignored).
• Provide a prompt to guide the continuation style, especially when the source audio has ambiguous direction.
• Turn Use Default Parameters on to gain control over style, negative style, and vocal gender; leave it off to let Suno choose its own.
• The source audio must be accessible via a public URL.

Common Use Cases

• Extending uploaded audio files that were not generated by Suno.
• Continuing TTS-generated audio with musical content.
• Lengthening audio from external sources (podcasts, recordings, other AI tools).
• Building hybrid workflows that mix Suno AI with other audio generation nodes.
• Creating extended versions of short audio clips or loops.

Tips

• The key difference from Suno Extend is that this node accepts a raw audio URL (uploadUrl) rather than a Suno Audio ID. Use Suno Extend for Suno-generated tracks and Upload Extend for everything else.
• This is lighter than standard Suno Extend because it does not use the full generation pipeline.
• The Prompt field is optional but recommended – without it, the AI relies entirely on the source audio to determine continuation.
• Style, Negative Style, and Vocal Gender are only active when Use Default Parameters is set to true.
• Connect any audio-producing node upstream (Upload Audio, Text to Speech, Generate Music, Audio Isolation, etc.).