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
Leonardo.ai A | Replicate S | Lex A | |
|---|---|---|---|
| Tagline | Gamer + creator image gen with model fine-tuning built in. | Run any open-source AI model with an API call. | Google Docs with an AI collaborator baked in. |
| Category | Image | Dev Platform | Writing |
| Pricing | Free + $12-$60/mo | Pay per second of compute | Free + $12/mo |
| Best for | Indie game devs, illustrators, anyone training custom style models. | Developers using open-source models (Flux, SDXL, Whisper, etc). | Essays, long-form drafts, thinking on the page. |
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| Kai's verdict | A-tier for creators training custom looks. B-tier for general use. | S-tier for open-source model APIs. The default in this space. | A-tier. Beautiful UX. The writing app I'd pick if I only wrote long-form. |
| Link | Open → | Open → | Open → |