Who this is for
Anyone about to type a sunnypilot install link into a comma device.
comma fourcomma 3Xcomma three
sunnypilotInstall softwareEasy
Which sunnypilot branch should I install?
comma four uses release-mici, comma 3X uses release-tizi, and comma three uses a special tici branch.
You need
- To know which comma device you have
- The device on Wi-Fi at the setup screen
In plain words
Why this guide matters
Typing the wrong sunnypilot branch is the easiest way to end up with unsupported software. This page lists the only supported branches: release-mici for comma four, release-tizi for comma 3X, and a testing branch for comma three. Copy the install link for your device and ignore every other branch name.
The short version
What the full guide walks you through
Find your device in the table.
Copy the install link for the release branch.
Only pick the testing or dev branch if you accept bugs.
Type the link as Custom Software during setup.
Before you start
- Every branch not in the table is unsupported.
- comma three support is limited and the release branch is still coming.
The full written guide belongs to sunnypilot. Checked on September 10, 2026. Their last update was May 6, 2026.
Quick answers
Questions people ask
What is the comma four install link?
install.sunnypilot.ai/release-mici for the release branch, as of May 2026.
Should I use the dev branch?
Only if you accept bugs; dev and testing branches change often. The release branch is the safe choice.
Is comma three still supported?
Partly; there is a testing branch, and the release branch was still marked coming soon in May 2026.
Related
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Check your exact car first, then choose software and hardware.
Photos: comma.ai. Guide content belongs to sunnypilot. CommaGuide is an independent guide and is not affiliated with comma.ai or sunnypilot.
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