Compare AI tools

	Suno S	Udio A	Stable Audio A	Sora A
Tagline	Prompt to full song with vocals, instruments, the works.	Suno's main rival. Often better on instrumental nuance.	Stability AI's open audio model. Loops + SFX + background.	OpenAI's video model. Long clips, cinematic quality.
Category	audio	audio	audio	video
Pricing	Free + $10/mo + $30/mo	Free + $10-$30/mo	Free + $12/mo Pro + enterprise	Included with ChatGPT Plus/Pro
Best for	Jingles, intros, demos, sketches, personal use.	Musicians comparing AI outputs. Anyone who didn't click with Suno.	Game developers, podcasters needing SFX, video creators needing background music.	ChatGPT subscribers experimenting with cinematic shots.
Strengths	Real songs with real lyrics v4 is very good Quick turnaround	Strong instrumentals + genre fidelity Extend/remix features Good lyric understanding	Open-weight model available Great for loops + game audio + SFX Commercial-use clarity	Up to 20-sec clips at 1080p Strong physics + scene composition Storyboard feature for longer narratives Remix existing videos
Weaknesses	Copyright gray zone Audio quality behind studio	Same copyright gray zone as Suno Ecosystem smaller	Not for full songs with vocals Shorter generation limits	Stricter content policy than competitors Hit-or-miss on complex motion Text-in-video still struggles
Kai's verdict	S-tier in its category. The first AI music tool I'd actually listen to.	A-tier. Genuinely different vibe from Suno — worth trying both for a month.	A-tier for its niche. Different use case than Suno — SFX and loops, not songs.	A-tier. Amazing when it works, frustrating when it doesn't. Runway still more reliable for pros.
Link	Open →	Open →	Open →	Open →