Codex vs Google Antigravity
Detailed comparison between Codex and Google Antigravity. Which one to choose for your project?
C
Codex
4.5/5 · 0
G
Google Antigravity
4.5/5 · 0
Compare features, prices and use cases below →
Head to Head
Codex
OpenAI's coding agent: CLI, IDE, cloud and GitHub, included with ChatGPT
4.5/5 Catalogue score: 4.5/5. No sourced user reviews.
Price
Free plan; From $20/mo Key features
- Delegate a task: Codex writes the code, runs tests, fixes failures and opens a pull request
- Terminal CLI, VS Code extension, cloud agent in ChatGPT and GitHub bot, your choice
- Each cloud task runs in an isolated container, several tasks in parallel without conflicts
- Open-source terminal client, steerable via AGENTS.md and extensible through MCP
Google Antigravity
Google's agent-first IDE, powered by Gemini 3 Pro, driving editor, terminal and browser
4.5/5 Catalogue score: 4.5/5. No sourced user reviews.
Price
Free plan Key features
- AI agents plan, code, run and test instead of acting as a mere sidebar copilot
- Spawn and supervise multiple agents in parallel across workspaces, with a tracking inbox
- Agents act across three surfaces: the code editor, the terminal and a controlled browser
- Through a dedicated Chrome extension, the agent navigates, clicks, types and inspects the console autonomously
Codex vs Google Antigravity, Specs at a glance
| Criteria | Codex | Google Antigravity |
|---|---|---|
| Rating | Catalogue score: 4.5/5. No sourced user reviews. | Catalogue score: 4.5/5. No sourced user reviews. |
| Pricing model | freemium | freemium |
| Starting price | Free plan; From $20/mo | Free plan |
| Free plan | Yes | Yes |
| Best for | Developers on ChatGPT plans who want to delegate complete coding tasks (fixes, features, reviews, PRs) to an autonomous agent | Developers and teams who want to delegate tasks to autonomous AI agents acting across the editor, terminal and browser, without leaving a desktop IDE |
Codex, Pros and Cons
Pros
- Included with ChatGPT: no extra cost for Plus/Pro subscribers
- Parallel execution in isolated sandboxes, automatic pull requests
- Open-source, configurable CLI (AGENTS.md, MCP)
- Four surfaces covered: terminal, IDE, cloud, GitHub
Cons
- The best models stay tied to the OpenAI ecosystem
- Usage caps per rolling window depending on the plan
- Younger CLI than rivals like Claude Code or Aider
Google Antigravity, Pros and Cons
Pros
- Free public preview with generous rate limits on Gemini 3 Pro
- Genuine agent-first approach: parallel agents across editor, terminal and browser
- Artifacts (plans, diffs, screenshots, recordings) to verify the agents' work
- Standalone desktop app for Windows, macOS and Linux
Cons
- In public preview: features and rate limits may change
- Separate desktop IDE to install, not a VS Code extension
- Younger ecosystem than Cursor or GitHub Copilot
Frequently asked questions
Which one is cheaper: Codex or Google Antigravity?
Codex: Free plan; From $20/mo. Google Antigravity: Free plan. The listed paid prices cannot be compared on the same basis.
Does Codex or Google Antigravity offer a free plan?
Yes, both Codex and Google Antigravity offer a free plan.
Which has the higher user rating, Codex or Google Antigravity?
Codex: Catalogue score: 4.5/5. No sourced user reviews. Google Antigravity: Catalogue score: 4.5/5. No sourced user reviews. Choose according to your use case; the rating alone does not determine the best fit.
What is Codex best for compared to Google Antigravity?
Codex is best for developers on chatgpt plans who want to delegate complete coding tasks (fixes, features, reviews, prs) to an autonomous agent. Google Antigravity is best for developers and teams who want to delegate tasks to autonomous ai agents acting across the editor, terminal and browser, without leaving a desktop ide. Choose based on which use case matches your needs.
Should I choose Codex or Google Antigravity?
Codex: Developers on ChatGPT plans who want to delegate complete coding tasks (fixes, features, reviews, PRs) to an autonomous agent. Google Antigravity: Developers and teams who want to delegate tasks to autonomous AI agents acting across the editor, terminal and browser, without leaving a desktop IDE. Choose according to your use case; the rating alone does not determine the best fit.
Choose according to your use case; the rating alone does not determine the best fit.
