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)
Dev Platform
Coding
Image
Productivity
Writing
Marketing
Windsurf A | NeuralSet A | Devin A | Perplexity S | |
|---|---|---|---|---|
| Tagline | Codeium's agentic IDE. Cascade agent + strong free tier. | Meta FAIR's open-source Python library that finally bridges the gap between neuroimaging data (fMRI, EEG, spikes) and modern deep learning pipelines. | Cognition Labs' autonomous coding engineer. | AI search done right. Cited answers, not chat theater. |
| Category | Coding | Research | Agents | Research |
| Pricing | Free + $15/mo Pro | Free (MIT open source) | $500/mo | Free + $20/mo Pro |
| Best for | Developers who want Cursor-like power for less money. | Computational neuroscience researchers who want to train deep learning models on brain recordings without building custom data pipelines from scratch. | Engineering teams offloading tickets. Ops/platform work. | Replacing Google for any question where you want a cited answer in seconds. |
| Strengths |
|
|
|
|
| Weaknesses |
|
|
|
|
| Kai's verdict | A-tier. Close second to Cursor. If $5/mo matters, start here. | 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.) | A-tier for the right use case. Not for solo devs. If you manage engineers, try one license. | S-tier for search. I use it before Google now. If you're still Googling everything, try this for a week. |
| Link | Open → | Open → | Open → | Open → |