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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Claude Agent SDK S | Perplexity S | Ideogram S | Groq S | |
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| Tagline | Anthropic's SDK for building your own agents on Claude. | AI search done right. Cited answers, not chat theater. | The one that actually gets text in images right. | The fastest AI inference in the world. Crazy low latency. |
| Category | Agents | Research | Image | Dev Platform |
| Pricing | API usage + SDK is free | Free + $20/mo Pro | Free + $8/mo + $20/mo + $60/mo | Free tier + pay-as-you-go API |
| Best for | Developers building custom agents for their own company/product. | Replacing Google for any question where you want a cited answer in seconds. | Anything with text — posters, ads, album covers, slide decks. | Developers who need sub-100ms LLM responses. |
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| Kai's verdict | S-tier for builders. The right primitives. What Kai is built on under the hood. | S-tier for search. I use it before Google now. If you're still Googling everything, try this for a week. | S-tier for text-in-image. Use this for posters, Midjourney for art. | S-tier for speed. When latency is the product, start here. |
| Link | Open → | Open → | Open → | Open → |