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 (4 selected)
Coding
Image
Productivity
Writing
Marketing
Fathom S | v0 S | Replicate S | Perplexity S | |
|---|---|---|---|---|
| Tagline | Meeting notes, free forever for individuals. | Vercel's AI-powered UI generator. Prompt to shadcn component. | Run any open-source AI model with an API call. | AI search done right. Cited answers, not chat theater. |
| Category | Meetings | Design | Dev Platform | Research |
| Pricing | Free for individuals + $15-$29/user/mo teams | Free + $20/mo | Pay per second of compute | Free + $20/mo Pro |
| Best for | Solo operators, freelancers, small teams on a budget. | Frontend devs, PMs prototyping UIs, anyone on Next.js. | Developers using open-source models (Flux, SDXL, Whisper, etc). | Replacing Google for any question where you want a cited answer in seconds. |
| Strengths |
|
|
|
|
| Weaknesses |
|
|
|
|
| Kai's verdict | S-tier for solo + free. The best free option, hands down. | S-tier. If you're on Vercel/shadcn, this is cheating. | S-tier for open-source model APIs. The default in this space. | S-tier for search. I use it before Google now. If you're still Googling everything, try this for a week. |
| Link | Open → | Open → | Open → | Open → |