Software / openpilot

openpilot software guide

The official software from comma.

Compare openpilot Help me choose

The short answer

Choose openpilot for the standard comma experience.

It is the starting point other projects build on. Use the version listed for your exact comma device.

comma 4

Current version listed

comma 3X

Current version listed

Change devices · comma 4 / 3X

Using

Choose your comma devices

Select one or more devices, then choose whether a version should match any or every selection.

Selected comma devices
Other devices
Device matching rule
Share or continue
https://commaguide.com/openpilot/?device=comma-4&device=comma-3xThis URL preserves the selected devices and matching rule.

Current choices for your devices

release-mici

comma 4

Install address available below

release-tizi

comma 3X

Install address available below

release-chestnut

comma 4

Install address available below

Versions and install addresses

release-mici

Current

comma 4 · comma four production

openpilot.comma.aiEnter this address on the comma device, not in a normal browser.

Checked Aug 19, 2026

Source

release-mici/tizi-staging

Testing

comma 4 / 3X · comma four and 3X pre-release testing

openpilot-test.comma.aiEnter this address on the comma device, not in a normal browser.

Checked Aug 19, 2026

Source

nightly-dev

In development

comma 4 / 3X · Experimental development builds

installer.comma.ai/commaai/nightly-devEnter this address on the comma device, not in a normal browser.

Checked Aug 19, 2026

Source

release-tizi

Current

comma 3X · comma 3X production

openpilot.comma.aiEnter this address on the comma device, not in a normal browser.

Checked Aug 19, 2026

Source

release-chestnut

Current

comma 4 · comma four with Chestnut

installer.comma.ai/commaai/release-chestnutEnter this address on the comma device, not in a normal browser.

Checked Aug 19, 2026

Source

release-tici

Current

comma 3 · comma three long-term-support source track

No current install address is confirmed here.

Checked Aug 19, 2026

SourceSource

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Sources and details

Released

Checked Aug 19, 2026