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.
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Coding
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Productivity
Writing
Marketing
Bolt.new (StackBlitz) A | HeyGen S | Replicate S | Rows A | |
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| Tagline | Prompt to deployed full-stack app in the browser. | AI avatar videos. Record once, speak any language. | Run any open-source AI model with an API call. | Spreadsheets with AI + live integrations baked in. |
| Category | Coding | Video | Dev Platform | Data |
| Pricing | Free + $20-$200/mo | Free + $24-$65/mo | Pay per second of compute | Free + $19-$89/user/mo |
| Best for | PMs, founders, non-devs shipping MVPs. | Course creators, multilingual marketers, anyone scaling video content. | Developers using open-source models (Flux, SDXL, Whisper, etc). | Ops teams, marketers, anyone building dashboards from multiple sources. |
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| Kai's verdict | A-tier. Best for fast prototypes. Competitive with Lovable — try both. | S-tier for multilingual video. If you sell courses or speak at events, this is a cheat code. | S-tier for open-source model APIs. The default in this space. | A-tier. The most interesting spreadsheet in years. Great for ops dashboards. |
| Link | Open → | Open → | Open → | Open → |