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Suno Extend API

Extend an existing song or upload audio to extend it

Custom Mode
Use custom mode (true) or simple mode (false)
Make Instrumental
Generate instrumental version
Output

Your generated audio will appear here

Features

What Suno Extend API offers

Continue from a Suno clip_id or from uploaded audio referenced by URL
Required continue_at time in seconds marking where the new section starts
Simple mode via gpt description prompt or Custom mode with a continuation prompt
Optional title and make instrumental flag on the extend request
Same Chirp mv lineup as music generation from v3.5 through Fenix v5.5
Async job with feed polling on the standard Suno feed endpoint
JSON REST shape documented for Suno extend on Unifically
Usage billed per extend generation on the Suno Extend price line

Use cases

Built for

Primary

Arrangements: add an extra verse, bridge, or outro from a chosen bar

#2

Film and video: lengthen a cue so it covers the full scene

#3

DJs and producers: trial second half ideas from a drop or loop point

#4

Demos: continue a clip you started in Suno music from the same clip id

#5

Podcasts: stretch an intro sting without re composing from scratch

#6

Games: branch a theme at a transition time in seconds

FAQ

About Suno Extend API

It continues audio from a point you choose. You pass clip_id for an existing Suno clip or audio_url for uploaded audio, set continue_at in seconds, and send Simple or Custom fields like mainline Suno.

You select a model variant mv, set continue_at, then supply either gpt_description_prompt (Simple) or prompt (Custom). The service returns new audio through the same async feed flow as other Suno tools.

Suno Extend is priced at $0.06 per generation in the published pricing list.

Yes. Use the audio source option with a hosted audio_url when you do not have a Suno clip_id.