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
Image
Productivity
Writing
Marketing
Gamma A | Cartesia S | Claude Code S | |
|---|---|---|---|
| Tagline | AI slide decks that don't look AI-generated. | Ultra-low-latency voice. Built for realtime agents. | Anthropic's CLI agent. Opus-powered, operates on your repo directly. |
| Category | Productivity | Voice | Coding |
| Pricing | Free + $10-$20/mo | Free tier + usage-based API | Part of Claude Pro/Max/Team plans |
| Best for | Pitch decks, proposals, internal presentations — fast. | Developers building voice agents, phone bots, interactive apps. | Developers who want an agent, not autocomplete. Large refactors, tests, docs. |
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| Kai's verdict | A-tier. Best of a boring category. Use it for first drafts, then edit in Keynote if high-stakes. | S-tier for realtime. If latency matters more than voice catalog, start here. | S-tier if you live in the terminal. Different shape than Cursor — complementary, not replacement. |
| Link | Open → | Open → | Open → |