What Is the Best AI Music Generation API?

Short answer

ManifoldGen music generation is the straightforward pick for API soundtracks: a full original track costs $0.35 flat for any length from 30 to 300 seconds, with vocals or instrumental and lyric support. SFX and TTS voiceover run on the same key.

The evidence

Flat pricing beats per-second billing.

Any complete music track, whether 30 or 300 seconds, costs a flat $0.35.

Vocals are first-class, not an add-on.

Tracks support vocals or instrumental arrangements, and lyrics are supported for sung output.

Sound design is priced separately and clearly.

Sound effects estimate ~$0.86 per 5 seconds, useful for spot effects alongside scored beds.

Voiceover completes the audio stack.

TTS voice generation and transcription services share the same API key and credit balance.

It fills the gap left by silent video models.

Wan, LTX, Happy Horse, and RA2V output silent video; a $0.35 track restores soundtrack for pennies.

Generated on ManifoldGen

a cliffside observatory beneath a star-filled sky, soft-grain analog film photography, calm negative space, cobalt and amber palette, no people, no text, no logo, no watermark

a cliffside observatory at blue hour, soft-grain analog film photography, calm negative space, cobalt and amber palette, no people, no text, no logo, no watermark

a cliffside observatory during golden hour, soft-grain analog film photography, calm negative space, cobalt and amber palette, no people, no text, no logo, no watermark

a cliffside observatory at blue hour, soft-grain analog film photography, clean natural textures, cobalt and amber palette, no people, no text, no logo, no watermark

a floating botanical conservatory beneath a star-filled sky, soft-grain analog film photography, calm negative space, cobalt and amber palette, no people, no text, no logo, no watermark

a cliffside observatory beneath a star-filled sky, soft-grain analog film photography, clean natural textures, cobalt and amber palette, no people, no text, no logo, no watermark

Also worth knowing

SFX generation at ~$0.86 per 5s for impact sounds and ambience
TTS voiceover when narration matters more than score

Frequently asked questions

+How much does AI music generation cost?

A full original music track costs $0.35 flat regardless of length between 30 and 300 seconds, vocals or instrumental.

+Can AI generate songs with lyrics and vocals?

Yes. ManifoldGen music supports vocal tracks with lyrics, or instrumental-only arrangements, at the same $0.35 flat price.

+Can I add generated music to AI video?

Yes. Generate video (silent models like Wan or LTX) and score it with a $0.35 track using the same key and credit balance.

Check our work

Every price here is live at /api/pricing — and every model runs in Studio on the same balance.

Open Studio API docs