Xum

Xum

Coder Technologies
+
+

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About

Google Antigravity is an agentic development platform that reimagines the traditional IDE for the AI-first era. Designed for developers of all levels, it enables seamless collaboration between humans and intelligent agents across the editor, terminal, and browser. The platform allows developers to issue natural language commands, monitor autonomous coding workflows, and review generated artifacts—all from a unified interface. Antigravity introduces cross-surface agent synchronization, ensuring consistency and context sharing across multiple workspaces. Its mission control view lets users manage and refine multiple agents simultaneously, making complex development tasks faster, smarter, and more intuitive. Whether you’re building enterprise-scale systems or experimenting creatively, Google Antigravity elevates the development experience into a new era of agent-driven productivity.

About

Xum is an open-source application for coordinating AI coding agents across software projects. Developers can run multiple agent sessions in parallel, isolate work with Git worktrees, and monitor or review changes through a desktop interface or a browser-accessible server. It brings terminal-based coding agents into a shared workflow for assigning tasks, tracking progress, and comparing parallel contributions. Xum is intended for software developers and engineering teams using AI-assisted development. Users configure compatible agent runtimes and model access for their workflows; charges from external model or inference providers may apply separately.

Platforms Supported

Windows Supported
Mac Supported
Linux Supported
Cloud Not Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Supported
Chromebook Supported

Platforms Supported

Windows Supported
Mac Supported
Linux Supported
Cloud Not Supported
On-Premises Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Audience

Developers, engineers, and organizations seeking an AI-powered IDE that enables multi-agent collaboration, autonomous coding, and high-level software development through natural language and agentic workflows

Audience

Software developers and engineering teams using AI coding agents to carry out, coordinate, and review coding tasks across software projects.

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

API

Offers API Not Supported

API

Offers API Not Supported

Screenshots and Videos

Screenshots and Videos

No images available

Pricing

Free
Free Version Supported
Free Trial Not Supported

Pricing

Xum is available as open-source software. Model and inference provider charges, if used, are separate and depend on the selected provider.
Free Version Supported
Free Trial Not Supported

Reviews/Ratings

Overall 5.0 / 5
ease 5.0 / 5
features 5.0 / 5
design 5.0 / 5
support 5.0 / 5

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

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Pros & Cons from Real Users

Pros

  • Google Antigravity delivers one of the smoothest agent-first development experiences I’ve ever used on macOS. The cross-surface synchronization between editor, terminal, and browser feels seamless, and the natural-language code commands make complex tasks incredibly fast. Mission control for managing multiple agents is a standout feature, and the intelligent tab autocompletion feels noticeably more context-aware than traditional IDEs.

Cons

  • The platform is still new (I literally just started using it today), so some integrations feel limited compared to more mature IDE ecosystems. A few workflows require switching mental models from conventional tooling, which takes a bit of adjustment. I also found myself wanting deeper customization options for agent behavior—though these are likely to evolve quickly.

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Company Information

Google
Founded: 1998
United States
antigravity.google/

Company Information

Coder Technologies
Founded: 2017
United States
xum.cdr.dev/

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Categories

Agentic AI Supported
AI Coding Agents Supported
AI IDEs Supported
IDE Supported
Vibe Coding Supported

Categories

Integrations

Claude Fable 5 Supported
Claude Fable 5.1 Supported
Claude Mythos 5 Supported
Claude Mythos 5.1 Supported
CybeDefend Supported
Gemini 3 Pro Supported
Gemini 3.1 Flash-Lite Supported
Gemini 3.5 Flash Cyber Supported
Gemini 3.5 Flash-Lite Supported
Gemini 3.8 Flash Cyber Supported
Gemini 4 Argon Supported
Gemini 4 Carbon Supported
Gemini Enterprise Supported
Gemini for Science Supported
Google AI Ultra Supported
IntelliJ IDEA Supported
LangProtect Supported
Nano Banana 2 Lite Supported
OpenViking Supported
gpt-oss-20b Supported

Integrations

Claude Fable 5 Not Supported
Claude Fable 5.1 Not Supported
Claude Mythos 5 Not Supported
Claude Mythos 5.1 Not Supported
CybeDefend Not Supported
Gemini 3 Pro Not Supported
Gemini 3.1 Flash-Lite Not Supported
Gemini 3.5 Flash Cyber Not Supported
Gemini 3.5 Flash-Lite Not Supported
Gemini 3.8 Flash Cyber Not Supported
Gemini 4 Argon Not Supported
Gemini 4 Carbon Not Supported
Gemini Enterprise Not Supported
Gemini for Science Not Supported
Google AI Ultra Not Supported
IntelliJ IDEA Not Supported
LangProtect Not Supported
Nano Banana 2 Lite Not Supported
OpenViking Not Supported
gpt-oss-20b Not Supported
Claim Google Antigravity and update features and information
Claim Google Antigravity and update features and information
Claim Xum and update features and information
Claim Xum and update features and information