OpenAI Codex vs Google Antigravity
Compare pricing, features, integrations, and use cases without juggling tabs. One canonical profile for each tool — researched side by side.
AI Agents
OpenAI Codex
OpenAI’s software-engineering agent in ChatGPT, the IDE, the terminal, and a desktop app.
AI Agents
Google Antigravity
Google’s agent-first coding platform: manager, IDE, CLI, and SDK on Gemini.
At a glance
Pricing model
freemium
freemium
Starting price
Included with ChatGPT
Free preview
Rating
4.6 / 5
4.5 / 5
Category
AI Agents
AI Agents
Features
ChatGPT command center for parallel agents
IDE extension for VS Code, Cursor, and Devin Desktop
Terminal agent
Desktop app with worktrees and cloud environments
GitHub review comments and PR workflows
Parallel local agent manager
Projects and scheduled messages
Agentic IDE with artifacts
Terminal-first CLI and subagents
Python SDK on the Antigravity harness
Gemini 3.8 Flash workflows
Integrations
ChatGPT
VS Code
Cursor
GitHub
JetBrains
Gemini
Google AI Studio
Gemini Enterprise
Android Studio
Best for
Delegated coding tasks
Parallel agents on one repo
PR review and comment resolution
OpenAI-standardized engineering stacks
Multi-agent coding sessions
Gemini-first engineering teams
Browser-in-the-loop frontend work
Evaluating agent harnesses
OpenAI Codex pricing
ChatGPT plans
Included
- • Codex in ChatGPT
- • IDE extension credits on the plan
- • Terminal access with the same account
API key
Usage-based
- • Sign in with an API key
- • Confirm current rates
Google Antigravity pricing
For developers
No charge (stated)
- • Agent manager
- • Antigravity IDE
- • CLI and SDK
For organizations
See website
- • Team workflows
- • Gemini Enterprise path
- • Confirm current terms