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 S | Perplexity S | Ollama S | Replicate S | |
|---|---|---|---|---|
| Tagline | Anthropic's flagship — best reasoning + longest useful context. | AI search done right. Cited answers, not chat theater. | Run LLMs locally. One-line install, GUI optional. | Run any open-source AI model with an API call. |
| Category | Chatbots | Research | Dev Platform | Dev Platform |
| Pricing | Free + $20/mo Pro + team/enterprise | Free + $20/mo Pro | Free + open source | Pay per second of compute |
| Best for | Long writing, code, careful thinking, documents over 50 pages. | Replacing Google for any question where you want a cited answer in seconds. | Devs wanting offline/local LLMs for privacy or experimentation. | Developers using open-source models (Flux, SDXL, Whisper, etc). |
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| Kai's verdict | S-tier for reasoning and writing. If you only pay for one chatbot, pay for this one — especially for long work. | S-tier for search. I use it before Google now. If you're still Googling everything, try this for a week. | S-tier for local inference. If you care about privacy or want to tinker, install this today. | S-tier for open-source model APIs. The default in this space. |
| Link | Open → | Open → | Open → | Open → |