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Pick two options. We’ll show what they share, where they behave differently, and what still needs checking for your devices.

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comma 4 and comma 3X start selected. You can compare one or several devices.

comma 3 and older devices
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At a glance

OPGM and StarPilot: 0 meaningful differences

0 shared · 20 need more information

This summary follows the selected software and devices. It is not a safety rating or a substitute for checking your exact car.

What both build from

The openpilot basics

Start with the four core behaviors, then see what each project adds or changes below.

Lane-centering assistance
More information needed
OPGM: 0/2 devicesStarPilot: 2/2 devices
Adaptive speed control
More information needed
OPGM: 0/2 devicesStarPilot: 2/2 devices
Attentive driver monitoring
More information needed
OPGM: 0/2 devicesStarPilot: 2/2 devices
Manual Chill or Experimental selection
More information needed
OPGM: 0/2 devicesStarPilot: 2/2 devices
Understand confusing feature names

Feature-name explanations

Steering while managing speed

MADS, AOL, ALKA, and UFC are not synonyms

They may serve a broad user goal, but brake, accelerator, cruise-cancel, and main-cruise behavior can differ. Stock accelerator override is not automatically MADS.

Experimental behavior

Manual Experimental is not a dynamic switcher

DEC, CEM, CCM, and AEM automatically choose modes using project-specific triggers. Their names and logic stay separate, and most require reviewed longitudinal context.

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What still needs checking

We do not have enough current information to make a clear comparison for these items.

20 capabilities
Show 20 items that need more information
Steering while the driver manages speed
More information needed
OPGM: 0/2 devicesStarPilot: 2/2 devices
Automatic Chill and Experimental switching
More information needed
OPGM: 0/2 devicesStarPilot: 2/2 devices
Lane-change initiation options
More information needed
OPGM: 0/2 devicesStarPilot: 2/2 devices
Selectable driving models
More information needed
OPGM: 0/2 devicesStarPilot: 2/2 devices
Alternative lateral control
More information needed
OPGM: 0/2 devicesStarPilot: 0/2 devices
Curve-speed assistance
More information needed
OPGM: 0/2 devicesStarPilot: 2/2 devices
Speed-limit assistance
More information needed
OPGM: 0/2 devicesStarPilot: 2/2 devices
Remote settings and backup
More information needed
OPGM: 0/2 devicesStarPilot: 2/2 devices
Driver-camera preview
More information needed
OPGM: 0/2 devicesStarPilot: 0/2 devices
Selectable following behavior
More information needed
OPGM: 0/2 devicesStarPilot: 0/2 devices
Offline map region management
More information needed
OPGM: 0/2 devicesStarPilot: 0/2 devices
Per-alert volume controls
More information needed
OPGM: 0/2 devicesStarPilot: 2/2 devices
Device health dashboard
More information needed
OPGM: 0/2 devicesStarPilot: 2/2 devices
Diagnostic log review
More information needed
OPGM: 0/2 devicesStarPilot: 2/2 devices
Diagnostic log export
More information needed
OPGM: 0/2 devicesStarPilot: 2/2 devices
Interface theme personalization
More information needed
OPGM: 0/2 devicesStarPilot: 2/2 devices
Screen recording library
More information needed
OPGM: 0/2 devicesStarPilot: 2/2 devices
Software update control
More information needed
OPGM: 0/2 devicesStarPilot: 0/2 devices
Update branch selection
More information needed
OPGM: 0/2 devicesStarPilot: 0/2 devices
Cruise-button speed management
More information needed
OPGM: 0/2 devicesStarPilot: 0/2 devices
Versions and install addresses

Version and installer details

Double-check the project’s current instructions and your exact car before installing.

🚙 OPGM

nightly

testing

comma-3x + comma-4 · nightly@15997ea8

Reviewed installer valueinstaller.comma.ai/opgm/nightlyA verified installer value does not prove support for every selected car or device.
Project profile

⭐ StarPilot

StarPilot

stable

comma-3x + comma-4 · StarPilot@101c354f

Reviewed installer valuefirestar5683/StarPilotA verified installer value does not prove support for every selected car or device.
Project profile