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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Writing
Marketing
Jasper B | HeyGen S | Replicate S | Aider A | |
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| Tagline | Marketing-first AI writing. Brand voice + campaign tools. | AI avatar videos. Record once, speak any language. | Run any open-source AI model with an API call. | Terminal-based AI pair programmer. Git-aware, model-flexible. |
| Category | Marketing | Video | Dev Platform | Coding |
| Pricing | $49-$129/mo | Free + $24-$65/mo | Pay per second of compute | Free (open source) + whatever API you use |
| Best for | Marketing teams that need brand-consistent output at scale. | Course creators, multilingual marketers, anyone scaling video content. | Developers using open-source models (Flux, SDXL, Whisper, etc). | Developers who want open-source tooling with full control. |
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| Kai's verdict | B-tier for individuals — Claude does this for less. A-tier for teams needing brand consistency. | 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 right answer if you want open-source + terminal-native + model-agnostic. |
| Link | Open → | Open → | Open → | Open → |