Compare AI tools

	Udio A	Suno S	Stable Audio A	Sora A
Tagline	Suno's main rival. Often better on instrumental nuance.	Prompt to full song with vocals, instruments, the works.	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-$30/mo	Free + $10/mo + $30/mo	Free + $12/mo Pro + enterprise	Included with ChatGPT Plus/Pro
Best for	Musicians comparing AI outputs. Anyone who didn't click with Suno.	Jingles, intros, demos, sketches, personal use.	Game developers, podcasters needing SFX, video creators needing background music.	ChatGPT subscribers experimenting with cinematic shots.
Strengths	Strong instrumentals + genre fidelity Extend/remix features Good lyric understanding	Real songs with real lyrics v4 is very good Quick turnaround	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	Same copyright gray zone as Suno Ecosystem smaller	Copyright gray zone Audio quality behind studio	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	A-tier. Genuinely different vibe from Suno — worth trying both for a month.	S-tier in its category. The first AI music tool I'd actually listen to.	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 →