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 | DALL-E 3 B | GitHub Copilot B | Hume AI A | |
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| Tagline | Enterprise AI avatar video for training + comms. | OpenAI's image model. Built into ChatGPT Plus. | Microsoft/GitHub's autocomplete. Deep VS Code + JetBrains integration. | Voice AI that reads + expresses emotion. |
| Category | Video | Image | Coding | Voice |
| Pricing | $22-$89/mo + enterprise | Included with ChatGPT Plus $20/mo | Free (limited) + $10/mo Pro + $19/mo Business | Free tier + pay-as-you-go |
| Best for | Enterprise L&D, corporate training, internal comms. | ChatGPT Plus users who want images without paying extra. | Teams with GitHub already. Devs who don't want to change IDEs. | Therapy apps, customer service, any voice agent where emotion matters. |
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| Kai's verdict | A-tier. HeyGen wins for creators, Synthesia wins for enterprise. | B-tier standalone, A-tier value if you already pay ChatGPT. Don't pay for it separately. | B-tier. Solid for autocomplete but the category moved past it. Pick Cursor unless you can't. | A-tier in its niche. The only one that actually gets emotion right. |
| Link | Open → | Open → | Open → | Open → |