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
Stable Audio A | Lex A | ChatGPT Operator B | |
|---|---|---|---|
| Tagline | Stability AI's open audio model. Loops + SFX + background. | Google Docs with an AI collaborator baked in. | OpenAI's browser agent. Clicks and types on websites for you. |
| Category | Audio | Writing | Agents |
| Pricing | Free + $12/mo Pro + enterprise | Free + $12/mo | Included with ChatGPT Pro $200/mo |
| Best for | Game developers, podcasters needing SFX, video creators needing background music. | Essays, long-form drafts, thinking on the page. | Power users willing to pay $200/mo for a browser bot. |
| Strengths |
|
|
|
| Weaknesses |
|
|
|
| Kai's verdict | A-tier for its niche. Different use case than Suno — SFX and loops, not songs. | A-tier. Beautiful UX. The writing app I'd pick if I only wrote long-form. | B-tier. Still early. Manus is more flexible for less money. |
| Link | Open → | Open → | Open → |