Show HN: Open-Source Version of Cyclon?

An independent developer released OpenCyclone, a free, Apache-2.0-licensed open-source Android app that turns an existing phone running Android 12 or later into an AI phone agent, with no backing from any company and no affiliation with Cyclon or Y Combinator. OpenCyclone reads app screens on a hidden display, taps through tasks, and halts at a code-level approval gate before any action that sends, pays, or deletes, supporting bring-your-own models via ChatGPT sign-in, OpenRouter, an API key, or a local model, plus tools through the Model Context Protocol. The developer says the project was built with AI coding agents on top of an existing open-source project and tested on a Pixel 7, and has not yet run the two public phone-agent benchmarks it names — 116 tasks in 20 real apps from Google Research and 201 harder tasks published at ACL 2026 — promising to publish all results including failures.

OpenCyclone is a free, open-source version that converts your Android phone into an AI phone. Not backed by anyone. Seriously. It was easy to build this. Someone else designed your phone. You already paid for it. We wrote an app. Together they do the thing: you ask, and your phone gets it done. Concept hardware · the phone in your hand · in production for years It works in your apps on a hidden screen while you keep using your phone. Before anything is sent, paid, or deleted, it stops and shows you exactly what will happen. Ask for the tool you need. The phone writes a small app, tests it, fixes it, and puts it on your home page. Change it by asking again. Bring your own model: sign in with ChatGPT, use OpenRouter, paste a key, or point it at a model on your own network. Add tools through the Model Context Protocol. Keep the apps you already use. The agent works inside them with your accounts, follows the rules you set, and never opens the apps on your protected list. The approval gate is code, not a promise in a prompt. You can read it, test it, and change it. That is what the word "open" is for. We will run OpenCyclone on two public benchmarks for phone agents and publish every result here, including the failures. Each task is scored by checking the app itself, not by asking the agent if it succeeded. 116 tasks in 20 real apps, from Google Research. Most phone agents report this score, so ours can stand next to theirs. 201 harder tasks, published at ACL 2026. It also tests whether the agent asks you when a request leaves out a fact, and whether it can use connected tools. Neither benchmark checks that an agent stops before it sends or pays. We will publish that test too: the agent must reach the Send button and wait for you, every time. Not run yet · results will appear here An open-source AI agent for stock Android. It reads the screen of your apps on a hidden display, decides what to tap, and asks you before any action that cannot be taken back. Yes. You also keep your phone, your operating system, and your money. $0. There is no deposit, no pre-order, and no delivery date. You install it today on the phone you have. You pay only your model provider, and a local model costs nothing. Because it is easy to build. An AI phone is an app, a helper process, and a model. One person built this one with AI coding agents, on top of an existing open-source project. Nobody should buy a new phone to get it. An Android phone with Android 12 or later, a computer for a one-time setup script, and an account with a model provider. It was built and tested on a Pixel 7. No. It is early software, written fast. Short tasks in one app work well. Long tasks across several apps fail more often. It tells you when it fails. One person and a small crowd of AI coding agents. It is backed by nobody. The code is under the Apache-2.0 licence, so you can take it and build your own. No. Cyclon is a company that is building a real phone with its own operating system, and we wish them well. OpenCyclone is an independent open-source project that does the same kind of work on the phone you already have. It is not affiliated with Cyclon or with Y Combinator. If you can do it on your phone, you should be able to ask your phone to do it. That needs an app, not new hardware.