OpenAI Codex vs Google Antigravity IDE

OCOpenAI Codex7.5Visit Google Antigravity IDE7.1Visit

Higher score OC OpenAI Codex #4 in AI Code Generators 7.5/10 Paid ✓ 1 of 4 features Visit OpenAI Codex

vs

Google Antigravity IDE #6 in AI Code Generators 7.1/10 Free plan · paid from $20/mo Free plan✓ 0 of 4 features Visit site

• OpenAI Codex fits best

  Teams delegating background engineering tasks

• Google Antigravity IDE fits best

  Developers wanting agentic coding in a desktop IDE

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Side by side

Feature	OCOpenAI Codex 7.5/10 Visit ↗	Google Antigravity IDE 7.1/10 Visit ↗
At a glance
Editor score	7.5	7.1
Ranking	#4 in AI Code Generators	#6 in AI Code Generators
Best for	Teams delegating background engineering tasks	Developers wanting agentic coding in a desktop IDE
Pricing model	Paid	Free plan + paid
Starting price	Not published	Not published
Free plan	—	✓ (best)
Free trial	—	—
Deployment	Cloud, Desktop	Desktop
Platforms	Web, Windows, macOS, Linux	Windows, macOS, Linux
Support	Docs · 24/7	Docs
Built for	Solo, Small business, Mid-market, Enterprise	Solo, Small business, Mid-market
Features OpenAI Codex 1/4 · Google Antigravity IDE 0/4
Code completion	Not published	Not published
Code chat	Not published	Not published
Agent mode	✓ (best)	Not published
Self-hosted option	Not published	Not published
Specs
IDE support	Not published	Not published
Context window	Not published	Not published
Our review
Pros	Handles features, refactors, migrations, code review, and terminal commands Delegates cloud tasks and supports parallel worktrees and scheduled work Works with VS Code, Cursor, Windsurf, Xcode, and JetBrains IDEs	Agents work across the editor, terminal, and browser. Parallel local agents and reviewable artifacts support multi-step workflows. Free Individual plan includes Gemini access and unlimited Tab completions.
Cons	Business plans bundle Codex with ChatGPT rather than offering a standalone subscription The listed support channel is documentation, except Enterprise's 24/7 priority support Business plan descriptions do not specify direct integrations or personal-plan pricing	Available as a desktop application rather than a web-based IDE. Individual has basic weekly rate limits. Support channels listed are documentation only.
Our verdict	OpenAI Codex is an AI coding agent integrated with ChatGPT, supported IDEs, and the terminal. It is aimed at developers and engineering teams handling features, refactors, migrations, testing, and code review. Codex can explain a codebase… Read the review →	Google Antigravity IDE brings AI assistance into a desktop development environment for individual developers, from hobbyists to professional developers. Tab autocomplete and natural-language code commands handle direct coding tasks, while… Read the review →

Strengths and trade-offs

• OpenAI Codex — where it wins

  • Handles features, refactors, migrations, code review, and terminal commands
  • Delegates cloud tasks and supports parallel worktrees and scheduled work
  • Works with VS Code, Cursor, Windsurf, Xcode, and JetBrains IDEs

  Where it doesn't

  • Business plans bundle Codex with ChatGPT rather than offering a standalone subscription
  • The listed support channel is documentation, except Enterprise's 24/7 priority support
  • Business plan descriptions do not specify direct integrations or personal-plan pricing

• Google Antigravity IDE — where it wins

  • Agents work across the editor, terminal, and browser.
  • Parallel local agents and reviewable artifacts support multi-step workflows.
  • Free Individual plan includes Gemini access and unlimited Tab completions.

  Where it doesn't

  • Available as a desktop application rather than a web-based IDE.
  • Individual has basic weekly rate limits.
  • Support channels listed are documentation only.

• OCOpenAI Codex7.5/10 · Paid

  A ChatGPT-connected coding agent for delegating work across IDEs, terminals, and cloud tasks.

  Visit OpenAI CodexFull verdict →
• Google Antigravity IDE7.1/10 · Free plan · paid from $20/mo

  A desktop IDE combining autocomplete with agents across editor, terminal, and browser.

  Visit siteFull verdict →