Compare AI tools

	Perplexity S	Devin A	Suno S	Cursor S
Tagline	AI search done right. Cited answers, not chat theater.	Cognition Labs' autonomous coding engineer.	Prompt to full song with vocals, instruments, the works.	VS Code fork that made AI coding actually work.
Category	research	agents	audio	coding
Pricing	Free + $20/mo Pro	$500/mo	Free + $10/mo + $30/mo	Free + $20/mo Pro + $40/mo Business
Best for	Replacing Google for any question where you want a cited answer in seconds.	Engineering teams offloading tickets. Ops/platform work.	Jingles, intros, demos, sketches, personal use.	Developers. Non-developers who want to ship working code.
Strengths	Sources every claim Fast, current answers Pro Search runs multi-step research Spaces for persistent context	Works like an engineer — takes Slack tasks, opens PRs Handles multi-hour engineering work Reports back with what it did	Real songs with real lyrics v4 is very good Quick turnaround	Tab completion feels like mind-reading Composer for multi-file edits Runs Claude, GPT, Gemini — you pick
Weaknesses	Not a general chatbot Answers can be shallow on complex topics	Expensive Best for well-scoped tasks Not for solo hobbyists	Copyright gray zone Audio quality behind studio	Can feel overwhelming for non-coders Expensive at scale
Kai's verdict	S-tier for search. I use it before Google now. If you're still Googling everything, try this for a week.	A-tier for the right use case. Not for solo devs. If you manage engineers, try one license.	S-tier in its category. The first AI music tool I'd actually listen to.	S-tier for coding. If you write code of any kind, this pays back the $20 in a day.
Link	Open →	Open →	Open →	Open →