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.Pick tools (2 selected)
coding
image
productivity
writing
marketing
OpenRouter S | Perplexity S | |
|---|---|---|
| Tagline | One API, every model. Pay-as-you-go, no subscriptions. | AI search done right. Cited answers, not chat theater. |
| Category | dev platform | research |
| Pricing | Pay per token — model-dependent | Free + $20/mo Pro |
| Best for | Developers experimenting across models. Apps that want fallback logic. | Replacing Google for any question where you want a cited answer in seconds. |
| Strengths |
|
|
| Weaknesses |
|
|
| Kai's verdict | S-tier for model-shopping. I use this for every prototype before committing. | S-tier for search. I use it before Google now. If you're still Googling everything, try this for a week. |
| Link | Open → | Open → |