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About

Context Nine is a collection of developer tools for carrying coding-agent work and project context across machines. Its public launcher installs pinned releases of independently versioned components and verifies their integrity. The tools cover code-folder synchronization, shared agent skills and instructions, and an Obsidian-oriented context workspace for organizing project knowledge. Developers can select the components that fit their workflow and use them alongside coding agents across Mac and Linux systems. The toolkit is intended for software engineers and teams running coding agents on multiple machines. Some hosted integrations are private; the public launcher is released under the MIT license.

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.

Platforms Supported

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

Platforms Supported

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

Audience

Software engineers and teams running coding agents across Mac and Linux machines

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

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

No images available

Screenshots and Videos

Pricing

Free
A free version is available.
Free Version Supported
Free Trial Not Supported

Pricing

Free
Free Version Supported
Free Trial Not Supported

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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Reviews/Ratings

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

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

Context Nine
South Africa
ctx9.com

Company Information

Google
Founded: 1998
United States
antigravity.google/

Alternatives

Alternatives

Big Pickle

Big Pickle

OpenCode
JetBrains Junie

JetBrains Junie

JetBrains

Categories

Agentic DevOps Supported

Categories

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

Integrations

Citlyze Not Supported
Claude Fable 5 Not Supported
Claude Fable 5.5 Not Supported
Claude Haiku 5.5 Not Supported
Gemini 3.1 Pro Not Supported
Gemini 3.5 Flash-Lite Not Supported
Gemini 3.5 Transcribe Not Supported
Gemini Enterprise Agent Platform Not Supported
Gemini Managed Agents Not Supported
Google AI Ultra Not Supported
Graphify Not Supported
MemPalace Not Supported
Nano Banana 2 Not Supported
Nano Banana 2.1 Not Supported
Obsidian Supported
Stock Alarm Not Supported
Visual Studio Not Supported
Zed Not Supported
omp Not Supported

Integrations

Citlyze Supported
Claude Fable 5 Supported
Claude Fable 5.5 Supported
Claude Haiku 5.5 Supported
Gemini 3.1 Pro Supported
Gemini 3.5 Flash-Lite Supported
Gemini 3.5 Transcribe Supported
Gemini Enterprise Agent Platform Supported
Gemini Managed Agents Supported
Google AI Ultra Supported
Graphify Supported
MemPalace Supported
Nano Banana 2 Supported
Nano Banana 2.1 Supported
Obsidian Not Supported
Stock Alarm Supported
Visual Studio Supported
Zed Supported
omp Supported
Claim Context Nine and update features and information
Claim Context Nine and update features and information
Claim Google Antigravity and update features and information
Claim Google Antigravity and update features and information