Compare AI tools
Side-by-side: what they do, what they cost, what Kai actually thinks. Pass up to 4 tools via ?tools=claude,chatgpt,gemini.
Pick tools (3 selected)
Coding
Image
Productivity
Writing
Marketing
Devin A | Suno S | Gemini A | |
|---|---|---|---|
| Tagline | Cognition Labs' autonomous coding engineer. | Prompt to full song with vocals, instruments, the works. | Google's answer. Best integrated with Workspace + free for a lot. |
| Category | Agents | Audio | Chatbots |
| Pricing | $500/mo | Free + $10/mo + $30/mo | Free + $20/mo Advanced (bundled with 2TB Drive) |
| Best for | Engineering teams offloading tickets. Ops/platform work. | Jingles, intros, demos, sketches, personal use. | Anyone already on Google, research tasks, summarizing long documents. |
| Strengths |
|
|
|
| Weaknesses |
|
|
|
| Kai's verdict | 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. | A-tier. The Deep Research feature is genuinely useful. Don't sleep on it if you're already paying Google. |
| Link | Open → | Open → | Open → |