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
Devin A | Rows A | Fireflies A | NotebookLM S | |
|---|---|---|---|---|
| Tagline | Cognition Labs' autonomous coding engineer. | Spreadsheets with AI + live integrations baked in. | Sales-focused meeting AI with CRM integration. | Google's research notebook. Turns your docs into a podcast. |
| Category | Agents | Data | Meetings | Research |
| Pricing | $500/mo | Free + $19-$89/user/mo | Free + $10-$19/user/mo | Free |
| Best for | Engineering teams offloading tickets. Ops/platform work. | Ops teams, marketers, anyone building dashboards from multiple sources. | Sales teams, customer success, anyone running many discovery calls. | Students, researchers, anyone with a stack of PDFs or a topic to learn. |
| Strengths |
|
|
|
|
| Weaknesses |
|
|
|
|
| Kai's verdict | A-tier for the right use case. Not for solo devs. If you manage engineers, try one license. | A-tier. The most interesting spreadsheet in years. Great for ops dashboards. | A-tier for sales teams. B-tier for solo users. | S-tier for study. The Audio Overview is a killer feature. Try it with three of your favorite PDFs. |
| Link | Open → | Open → | Open → | Open → |