Reality check
How does AgentMux
compare?
Memory, slowdowns and what each tool actually runs.
Out of RAM
Memory hogging.
Figures reported by users of each tool, over long sessions. AgentMux's own idle memory is being re-measured and will be published on Sources.
20–40+
GB · Cursor, multi-day sessions10+
GB · Windsurf language server3+
GB · Warp spikesSlowdowns
Daily restarts.
Cursor shows progressive slowdown that calls for restarting it each day. AgentMux's backend is Rust: no garbage collector, no pauses.
Stability
Chromium and Node
can die.
Anything built on Chromium and Node can lose a renderer or a Node process to a crash, a hang or an out-of-memory kill. Whatever lived inside that process goes with it.
Real complaints
What users report
about the others.
- 01
Cursor
Renderer crashes past 4 GB.
Users report the renderer crashing on Windows once it passes 4 GB (forum thread), and a 2.5 GB idle baseline that Cursor staff called "way too high" (forum thread).
- 02
Windsurf
A language server that never lets go.
Its language server grew from 3.5 GB to 60+ GB on Linux (issue #286), and used 20-34 GB within minutes of opening a 5,472-file project on macOS, ignoring the memory limit setting (issue #300).
- 03
VS Code
Chat takes it to a V8 crash.
With Copilot Chat, one report has memory climbing from 350 MB at startup to a 4 GB V8 crash (issue #311225).
- 04
Zed
40 GB in an editor.
A report on Zed 0.233.10 shows 40.4 GB in use, and maintainers suspect recent worktree changes (issue #54909).
- 05
Warp
Leaks that come back.
A reopened report shows over 130 GB within 24 hours on macOS with no AI features in use (issue #12154); another reached 3.6 GB on Linux (issue #7520).
Individual reports from each project's public tracker or forum, linked above. Some figures may count virtual or committed memory rather than resident RAM, and they are not typical use: they show the failure mode, a Chromium, Node or garbage-collected process that grows until it dies. AgentMux is alpha software and has bugs of its own.
Solid core
In AgentMux,
your agents
keep running.
In AgentMux the agents, terminals and layout live in the Rust core, not in Chromium. If a renderer crashes, runs out of memory or hangs, the host replaces it and redraws the window from the core. No garbage collector, no pauses.
Free · Open source · Apache 2.0
Free. Open source.
On your machine.
Alpha software. Features may be incomplete or unstable. AI agents generate content that may be inaccurate — always review outputs. Report issues