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 (3 selected)
Dev Platform
Coding
Image
Productivity
Writing
Marketing
Cursor S | NeuralSet A | HeyGen S | |
|---|---|---|---|
| Tagline | VS Code fork that made AI coding actually work. | Meta FAIR's open-source Python library that finally bridges the gap between neuroimaging data (fMRI, EEG, spikes) and modern deep learning pipelines. | AI avatar videos. Record once, speak any language. |
| Category | Coding | Research | Video |
| Pricing | Free + $20/mo Pro + $40/mo Business | Free (MIT open source) | Free + $24-$65/mo |
| Best for | Developers. Non-developers who want to ship working code. | Computational neuroscience researchers who want to train deep learning models on brain recordings without building custom data pipelines from scratch. | Course creators, multilingual marketers, anyone scaling video content. |
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| Kai's verdict | S-tier for coding. If you write code of any kind, this pays back the $20 in a day. | If you're doing neuro-AI research, this is the plumbing you've been manually building for years — finally done right by the team that actually runs these experiments at scale. Extremely narrow use case, but within that lane it looks genuinely best-in-class. (Verdict pending Phi's full review.) | S-tier for multilingual video. If you sell courses or speak at events, this is a cheat code. |
| Link | Open → | Open → | Open → |