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
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Devin A | Manus S | GitHub Copilot B | Genspark A | |
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| Tagline | Cognition Labs' autonomous coding engineer. | Autonomous AI agent that actually finishes tasks. | Microsoft/GitHub's autocomplete. Deep VS Code + JetBrains integration. | AI agent for deep search. Generates Sparkpages — full mini-reports. |
| Category | Agents | Agents | Coding | Research |
| Pricing | $500/mo | Free tier + $39-$199/mo | Free (limited) + $10/mo Pro + $19/mo Business | Free + $25/mo Plus |
| Best for | Engineering teams offloading tickets. Ops/platform work. | People who want to hand off tasks entirely — trip planning, research, spreadsheet building. | Teams with GitHub already. Devs who don't want to change IDEs. | Travel planning, shopping comparisons, deep research where you want an artifact back. |
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| Kai's verdict | A-tier for the right use case. Not for solo devs. If you manage engineers, try one license. | S-tier in the agent category. The first one I'd give to a non-technical friend. | B-tier. Solid for autocomplete but the category moved past it. Pick Cursor unless you can't. | A-tier. Bet on this one — the Sparkpage format is genuinely new. |
| Link | Open → | Open → | Open → | Open → |