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 (4 selected)
coding
image
productivity
writing
marketing
Replicate S | Runway S | Perplexity S | Adobe Firefly A | |
|---|---|---|---|---|
| Tagline | Run any open-source AI model with an API call. | The pro's AI video tool. Gen-4 is the current bar. | AI search done right. Cited answers, not chat theater. | Commercially safe image gen, deeply integrated with Photoshop. |
| Category | dev platform | video | research | image |
| Pricing | Pay per second of compute | Free + $15-$95/mo | Free + $20/mo Pro | Free + included with Creative Cloud |
| Best for | Developers using open-source models (Flux, SDXL, Whisper, etc). | Marketing video, pitch decks, b-roll, creative shorts. | Replacing Google for any question where you want a cited answer in seconds. | Anyone in Creative Cloud. Brands that need copyright clarity. |
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| Kai's verdict | S-tier for open-source model APIs. The default in this space. | S-tier. Market leader with reason. Start here for serious video. | S-tier for search. I use it before Google now. If you're still Googling everything, try this for a week. | S-tier inside Photoshop (Generative Fill). B-tier standalone. |
| Link | Open → | Open → | Open → | Open → |