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
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Productivity
Writing
Marketing
GitHub Copilot B | NeuralSet A | Reflect A | Gemini A | |
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| Tagline | Microsoft/GitHub's autocomplete. Deep VS Code + JetBrains integration. | Meta FAIR's open-source Python library that finally bridges the gap between neuroimaging data (fMRI, EEG, spikes) and modern deep learning pipelines. | AI-powered networked notes. Roam with a brain. | Google's answer. Best integrated with Workspace + free for a lot. |
| Category | Coding | Research | Productivity | Chatbots |
| Pricing | Free (limited) + $10/mo Pro + $19/mo Business | Free (MIT open source) | $10/mo | Free + $20/mo Advanced (bundled with 2TB Drive) |
| Best for | Teams with GitHub already. Devs who don't want to change IDEs. | Computational neuroscience researchers who want to train deep learning models on brain recordings without building custom data pipelines from scratch. | Knowledge workers + thinkers who want AI in their second brain. | Anyone already on Google, research tasks, summarizing long documents. |
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| Kai's verdict | B-tier. Solid for autocomplete but the category moved past it. Pick Cursor unless you can't. | 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. Niche but beloved. If you've outgrown Notion, try this. | A-tier. The Deep Research feature is genuinely useful. Don't sleep on it if you're already paying Google. |
| Link | Open → | Open → | Open → | Open → |