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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ChatGPT Operator B | Replicate S | Skye A | Symphony A | |
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| Tagline | OpenAI's browser agent. Clicks and types on websites for you. | Run any open-source AI model with an API call. | 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. | 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 | Dev Platform | Agents | Agents |
| Pricing | Included with ChatGPT Pro $200/mo | Pay per second of compute | Waitlist / Beta (pricing not yet disclosed) | Free (open-source) |
| Best for | Power users willing to pay $200/mo for a browser bot. | Developers using open-source models (Flux, SDXL, Whisper, etc). | iPhone power users who are frustrated that Siri is still reactive and want their home screen to actually anticipate their day. | 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. |
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| Kai's verdict | B-tier. Still early. Manus is more flexible for less money. | S-tier for open-source model APIs. The default in this space. | 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.) | 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 → |