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
Skye A | Gamma A | Replicate S | Symphony A | |
|---|---|---|---|---|
| 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 slide decks that don't look AI-generated. | Run any open-source AI model with an API call. | OpenAI's open-source daemon that turns your Linear board into an always-on coding agent factory — tickets go in, pull requests come out. |
| Category | Agents | Productivity | Dev Platform | Agents |
| Pricing | Waitlist / Beta (pricing not yet disclosed) | Free + $10-$20/mo | Pay per second of compute | Free (open-source) |
| Best for | iPhone power users who are frustrated that Siri is still reactive and want their home screen to actually anticipate their day. | Pitch decks, proposals, internal presentations — fast. | Developers using open-source models (Flux, SDXL, Whisper, etc). | 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. |
| Strengths |
|
|
|
|
| Weaknesses |
|
|
|
|
| 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.) | A-tier. Best of a boring category. Use it for first drafts, then edit in Keynote if high-stakes. | S-tier for open-source model APIs. The default in this space. | 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.) |
| Link | Open → | Open → | Open → | Open → |