Show HN: ChatPanel, A Privacy-first AI Agent browser side panel

**ChatPanel** is a privacy-first AI agent that runs as a browser side panel. Its builder posted it on Hacker News under Show HN after building it to get an agent that understands meetings, notes, and chats, lives where the web is used, and lets the user pick the model.

**ChatPanel** is built around bring-your-own runtime. Users can plug in agents such as **Codex** or **Claude Code**, or use local models, in-browser models, or remote models. The product also includes a live meeting assistant, a local note-taking app where agents run, and voice-to-text that stays fully local.

For engineers and builders, the design keeps agent work next to the browser instead of in a separate app. Meetings, notes, and chats sit in one place, and model choice is not locked to a single vendor API. That combination targets people who already live in the browser and want agent help without giving up control of which model or agent stack they run.

On the market, **ChatPanel** sits with other AI side panels and agent UIs, but leans hard on privacy and local pieces: local notes, local voice-to-text, and optional local or in-browser models. Against cloud-only copilots, the bet is that bring-your-own agents (**Codex**, **Claude Code**, and similar) plus local capture is more flexible than a fixed hosted stack.

What to try first is the live meeting assistant and the local notes surface where agents live. What to watch next is how well bring-your-own agents and mixed local/remote models hold up in daily use, and whether the local voice path stays reliable enough that privacy stays the default rather than a demo feature.