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
Synthesia A | Lex A | GitHub Copilot B | Rows A | |
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| Tagline | Enterprise AI avatar video for training + comms. | Google Docs with an AI collaborator baked in. | Microsoft/GitHub's autocomplete. Deep VS Code + JetBrains integration. | Spreadsheets with AI + live integrations baked in. |
| Category | Video | Writing | Coding | Data |
| Pricing | $22-$89/mo + enterprise | Free + $12/mo | Free (limited) + $10/mo Pro + $19/mo Business | Free + $19-$89/user/mo |
| Best for | Enterprise L&D, corporate training, internal comms. | Essays, long-form drafts, thinking on the page. | Teams with GitHub already. Devs who don't want to change IDEs. | Ops teams, marketers, anyone building dashboards from multiple sources. |
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| Kai's verdict | A-tier. HeyGen wins for creators, Synthesia wins for enterprise. | A-tier. Beautiful UX. The writing app I'd pick if I only wrote long-form. | B-tier. Solid for autocomplete but the category moved past it. Pick Cursor unless you can't. | A-tier. The most interesting spreadsheet in years. Great for ops dashboards. |
| Link | Open → | Open → | Open → | Open → |