Bing AI’s Jailbreak, Packaged as a Desktop App
It wraps the reverse-engineered Sydney API in a desktop app to bypass Bing AI’s guardrails, CAPTCHAs, and region locks.

What it does
SydneyQt is a cross-platform desktop app built with Go and Wails that fronts the unofficial, jailbroken version of Microsoft’s Bing Copilot known as Sydney. It reverse-engineers the web API to expose hidden parameter tweaks, prompt injection, and gray-scale test features behind a modern UI that supports dark mode, file uploads, and DALL·E 3 image generation.
The interesting bit
The real engineering is in the circumvention layer: automatic CAPTCHA solving via a local Selenium browser, Cloudflare Worker WebSocket proxies for geo-blocked users, and session-management hacks to stop Bing from revoking or polluting your cookies. You can even edit the AI’s previous responses directly in the chat history.
Key highlights
- Jailbreaks Bing AI with parameter tweaks and prompt injection, including early access to gray-scale test features.
- Bundles automatic CAPTCHA resolution and region-unblocking via proxy support or a Cloudflare Workers reverse proxy.
- Supports file uploads (PDF, Office docs, code), webpage chat, YouTube summarization, GPT-4 vision, DALL·E 3, and Suno music generation.
- Allows editing of both user and AI chat context, preventing message revokes and injecting custom continuation prompts.
- Doubles as an OpenAI ChatGPT API client with switchable configurations and custom prompt presets.
Caveats
- Requires manual cookie extraction and periodic refreshing; sessions expire and can be permanently polluted by regional redirects (e.g., to
cn.bing.com). - Persistent CAPTCHA loops can occur if your proxy IP rotates, and users in banned countries need additional proxy or Cloudflare Worker infrastructure.
- The macOS release is unsigned, which may trigger Gatekeeper warnings.
Verdict
Grab it if you want a desktop-native way to tinker with Bing AI’s hidden knobs and bypass regional guardrails. Skip it if you expect a polished, zero-config consumer chat app—this is fundamentally a reverse-engineering tool with a nice coat of paint.
Frequently asked
- What is juzeon/SydneyQt?
- It wraps the reverse-engineered Sydney API in a desktop app to bypass Bing AI’s guardrails, CAPTCHAs, and region locks.
- Is SydneyQt open source?
- Yes — juzeon/SydneyQt is open source, released under the Unlicense license.
- What language is SydneyQt written in?
- juzeon/SydneyQt is primarily written in Go.
- How popular is SydneyQt?
- juzeon/SydneyQt has 879 stars on GitHub.
- Where can I find SydneyQt?
- juzeon/SydneyQt is on GitHub at https://github.com/juzeon/SydneyQt.