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 (2 selected)
Coding
Image
Productivity
Writing
Marketing
Fathom S | OpenAI Voice / Realtime S | |
|---|---|---|
| Tagline | Meeting notes, free forever for individuals. | ChatGPT's voice + the Realtime API for developers. |
| Category | Meetings | Voice |
| Pricing | Free for individuals + $15-$29/user/mo teams | Voice included with ChatGPT Plus; Realtime API by usage |
| Best for | Solo operators, freelancers, small teams on a budget. | Voice chat users, developers building voice agents on OpenAI. |
| Strengths |
|
|
| Weaknesses |
|
|
| Kai's verdict | S-tier for solo + free. The best free option, hands down. | S-tier for conversation. A-tier for TTS. Complement to ElevenLabs, not replacement. |
| Link | Open → | Open → |