AssemblyAI vs Suno
Both cover audio. Suno is the cheaper way in at $8/mo .
Entry cost
AssemblyAI —/mo
Speech API with speaker labels and audio intelligence.
Free tier: yes · Billing: usage
Suno $8/mo
Full songs — vocals, instruments, structure — from a prompt.
Free tier: yes · Billing: seat
Plan by plan
| AssemblyAI | Price | Suno | Price |
|---|---|---|---|
| Universal-2 (async) | $0.15 | Free Plan | Free |
| Universal-3.5 Pro (async) | $0.21 | Pro Plan | $8 |
| Universal-Streaming | $0.15 | Premier Plan | $24 |
| Voice Agent API | $4.50 | — | — |
Which to pick
AssemblyAI — Building transcript features without training models.
Suno — Original background music you can licence for content.
AssemblyAI checked 2026-09-04 · Suno checked 2026-09-03