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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Skye A | Perplexity S | Symphony A | Luma Dream Machine A | |
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| Tagline | An agentic iPhone home screen that replaces your static icon grid with AI widgets that proactively surface health, calendar, finance, and local context — without you having to open a single app. | AI search done right. Cited answers, not chat theater. | OpenAI's open-source daemon that turns your Linear board into an always-on coding agent factory — tickets go in, pull requests come out. | Smooth, cinematic motion. Image-to-video specialist. |
| Category | Agents | Research | Agents | Video |
| Pricing | Waitlist / Beta (pricing not yet disclosed) | Free + $20/mo Pro | Free (open-source) | Free + $10-$500/mo |
| Best for | iPhone power users who are frustrated that Siri is still reactive and want their home screen to actually anticipate their day. | Replacing Google for any question where you want a cited answer in seconds. | Engineering teams already using Linear + OpenAI Codex who want to stop babysitting agent sessions and instead let the issue tracker drive autonomous coding at scale. | Photographers animating stills, cinematic b-roll. |
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| Kai's verdict | The concept is genuinely compelling — turning the home screen into a living AI layer is a smarter bet than yet another chat interface — but this is vaporware until it ships publicly and we see whether Apple's sandbox lets it breathe. (Verdict pending Phi's full review.) | S-tier for search. I use it before Google now. If you're still Googling everything, try this for a week. | Symphony is the most architecturally serious 'issue tracker as control plane' approach yet — 15K GitHub stars in weeks confirms the idea resonates — but it's still a rough, self-hosted engineering preview that demands Elixir chops and a Linear-only workflow. (Verdict pending Phi's full review.) | A-tier. Best for cinematic image-to-video. Pair with Runway for coverage. |
| Link | Open → | Open → | Open → | Open → |