[Bug Report] High CPU Usage (400%) by language_server_macos_arm on latest macOS

Google Antigravity
1

Description: I am reporting a critical performance issue with the latest build of Antigravity on macOS (Apple Silicon). The language server process consistently consumes excessive CPU resources, rendering the machine unresponsive and causing overheating.

Environment:

  • Application: Antigravity 1.15.8 1.104.0

  • OS: macOS Tahoe 26.2 (25C56)

  • Architecture: Apple Silicon (ARM64)

  • Process Name: language_server_macos_arm

Symptoms: Upon launching the application, the language_server_macos_arm process spikes to approximately 400% CPU usage according to the Activity Monitor. This high load persists even when the editor is idle and no heavy indexing should be occurring.

Reproduction Steps:

  1. Launch Antigravity.

  2. Open a workspace/project.

  3. Observe Activity Monitor; the specified process immediately jumps to high CPU usage and does not throttle down.

Expected Behavior: The language server should idle efficiently when not actively indexing or analyzing code.

Has this regression been tracked? Any assistance would be appreciated.

2

I am experiencing this issue as well. very similar specs.

3

same here, noticed it spawned many language_server_macos_arm processes

4

UPDATE: I noticed that one of my prompts generated a .css file that was 190GB large .. I undid the changes in git and it went back to 7KB . idk how but now it works fine ? os maybe check your file sizes .

5

I have almost the same issue, since long days on Ubuntu 24

My laptop is refreshing always when the agent is launched, i’ve tried a lot of tricks (IDE global settings on search / watcher excludes files, clean code project in case of, ‘cpulimit’ package to launch with process id of antigravity to target this use)
i’ve udpated the soft today also

it’s not a normal situation, it’s literaly draining the battery of laptop + over using CPU

6

Same problem here, with the same configuration. I’ve had to stop and relaunch the app every 5-6 tasks.

7

battery getting destroyed from this since mid December. No update has fixed it. Apple Silicon M3 running extremely hot, MacBook sounds like fighter jet, drained me from 98% battery to 54% in 20 minutes

8

Same here, renders my M2 PRO unusable, unfortunately.
There seem to be some sersious optimization issues

9

Hi @LOVECHEN

Thank you for flagging this issue. We recommend updating to the latest version of Antigravity and checking whether the issue still occurs. Please let us know if the problem persists after updating.

10

I have the most updated version:

Antigravity Version: 1.18.4
VSCode OSS Version: 1.107.0
Commit: c19fdcaaf941f1ddd45860bfe2449ac40a3164c2
Date: 2026-02-20T22:30:09.460Z (4 days ago)
Electron: 39.2.3
Chromium: 142.0.7444.175
Node.js: 22.21.1
V8: 14.2.231.21-electron.0
OS: Darwin arm64 25.2.0
Language Server CL: 873063495

And I have an M1 Max Mac Studio that I’ve never even come close to maxing out and Antigravity has me at a constant 94% of CPU load capacity - there is a great deal of room for improvement on this front.

11

LOL The M4 Max kicked the fans on for the first time. I didn’t even notice it getting that hot.

12

See good to know it’s not just me - I’m waiting on that new M5 Ultra Mac Studio to come out… When they released the M3 Ultra AFTER the M4 chips came out I was not biting on that apple.

13

Experiencing something related now in 31 Mar
mine is that it’s spawning 3 processes, consuming at least 1GB mem each