Google Antigravity vs OpenAI Codex: Coding Agents Comparison
Compare Google Antigravity and OpenAI Codex side by side. Both are tools in the Coding Agents category.
Quick Comparison
| Category | Coding Agents | Coding Agents |
| Website | developers.googleblog.com | openai.com |
How to Choose a Coding Agents Tool
Key criteria to evaluate when comparing Coding Agents solutions:
About Google Antigravity
Google Antigravity is Google's agentic development platform, announced alongside Gemini 3 in late 2025. Built as a modified VS Code fork, it combines a traditional AI-powered editor with a Manager View for orchestrating multiple autonomous agents working in parallel across workspaces. Agents can plan, execute, and verify complex tasks across editor, terminal, and browser. Antigravity achieved 76.2% on SWE-bench Verified and supports Gemini 3 Pro, Deep Think, and Flash models, plus third-party models like Claude.
About OpenAI Codex
OpenAI Codex is a cloud-based autonomous coding agent that runs in a sandboxed environment. It can read codebases, write and edit code across multiple files, run tests, and submit pull requests—all from a natural language task description. Codex operates asynchronously, handling tasks in parallel while developers focus on other work. Built on OpenAI's reasoning models, it excels at feature implementation, bug fixes, and refactoring on real-world repositories.
What is Coding Agents?
AI-powered developer tools that can write, review, debug, and refactor code—ranging from IDE copilots to fully autonomous software engineering agents.
Browse all Coding Agents tools →