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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Claude Code S | Devin A | Manus S | Fireflies A | |
|---|---|---|---|---|
| Tagline | Anthropic's CLI agent. Opus-powered, operates on your repo directly. | Cognition Labs' autonomous coding engineer. | Autonomous AI agent that actually finishes tasks. | Sales-focused meeting AI with CRM integration. |
| Category | Coding | Agents | Agents | Meetings |
| Pricing | Part of Claude Pro/Max/Team plans | $500/mo | Free tier + $39-$199/mo | Free + $10-$19/user/mo |
| Best for | Developers who want an agent, not autocomplete. Large refactors, tests, docs. | Engineering teams offloading tickets. Ops/platform work. | People who want to hand off tasks entirely — trip planning, research, spreadsheet building. | Sales teams, customer success, anyone running many discovery calls. |
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| Kai's verdict | S-tier if you live in the terminal. Different shape than Cursor — complementary, not replacement. | 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. | A-tier for sales teams. B-tier for solo users. |
| Link | Open → | Open → | Open → | Open → |