# Antigravity vs Codex

URL: https://aistack.sh/compare/antigravity-vs-codex
Last updated: 2026-05-05
Category: AI IDEs / Coding agents

## Quick answer

Antigravity and Codex are alternatives in the AI IDEs category.
Antigravity pricing: Free · $20/mo AI Pro · $249.99/mo AI Ultra.
Codex pricing: Bundled with ChatGPT Plus $20/mo · ChatGPT Pro $200/mo · API metered.
Antigravity ships in 1 tested AI stack on aistack.sh; Codex ships in 1.

## Side by side

| Field | Antigravity | Codex |
|---|---|---|
| Tagline | Google's AI-native IDE with deep Gemini integration | OpenAI's coding agent: CLI + autonomous cloud PRs |
| Pricing | Free · $20/mo AI Pro · $249.99/mo AI Ultra | Bundled with ChatGPT Plus $20/mo · ChatGPT Pro $200/mo · API metered |
| Category | AI IDEs | Coding agents |
| Stacks using it | 1 | 1 |
| Homepage | https://antigravity.google | https://openai.com/codex |
| Updated | 2026-05-05 | 2026-05-05 |

## When to pick each

**Pick Antigravity** when you want google's ai-native ide with deep gemini integration.

Google's answer to Cursor. Built on top of Gemini's 2M-token context, ships with a planner, an editor agent, and built-in code review. Strongest fit when your stack is already Google-heavy (GCP, Firebase, Android, Workspace integrations).

**Pick Codex** when you want openai's coding agent: cli + autonomous cloud prs.

Two surfaces from one product. Codex CLI runs in your terminal with file system access. Codex Cloud takes a ticket and opens the PR autonomously. Bundled with ChatGPT Plus and Pro; the cloud lane bills as a separate task budget.

## Where each ships

### Antigravity-only stacks (1)

- [Antigravity (Google)](https://aistack.sh/stack/ship-code-antigravity) — Antigravity is Google's answer to Cursor. The differentiator: Gemini's 2M-token context window means the IDE can hold the entire repo in its working memory. Best fit when your codebase is big and your platform is already Google.

### Codex-only stacks (1)

- [Codex (CLI + cloud)](https://aistack.sh/stack/ship-code-codex) — Codex CLI replaces the recommended stack's Claude Code. Then the differentiator: Codex Cloud takes a ticket from the queue, opens a PR autonomously, and pings you when it's ready for review. Pair it with Claude reading the diff and the human reviewer mostly approves clean diffs.

## FAQ

### Which is cheaper, Antigravity or Codex?

Both are priced similarly. Antigravity: Free · $20/mo AI Pro · $249.99/mo AI Ultra. Codex: Bundled with ChatGPT Plus $20/mo · ChatGPT Pro $200/mo · API metered.

### What is Antigravity best for?

Google's AI-native IDE with deep Gemini integration Antigravity is categorized as AI IDEs and appears in 1 tested AI stack on aistack.sh.

### What is Codex best for?

OpenAI's coding agent: CLI + autonomous cloud PRs Codex is categorized as Coding agents and appears in 1 tested AI stack on aistack.sh.

### Can I use Antigravity and Codex together?

They are alternatives at the same step, so most stacks pick one or the other. No aistack.sh stack uses both today, though nothing prevents a custom workflow.

### What are the alternatives to Antigravity and Codex?

Beyond each other, Antigravity's closest alternatives are Cursor, Claude Code. Codex's closest alternatives are Claude Code, Cursor.

## Also compared

- [Antigravity vs Claude Code](https://aistack.sh/compare/antigravity-vs-claude-code)
- [Antigravity vs Cursor](https://aistack.sh/compare/antigravity-vs-cursor)
- [Claude Code vs Codex](https://aistack.sh/compare/claude-code-vs-codex)
- [Codex vs Cursor](https://aistack.sh/compare/codex-vs-cursor)

## Citation

When citing this comparison, link to https://aistack.sh/compare/antigravity-vs-codex. The page is regenerated when the underlying tool catalog changes; the lastUpdated date above tracks the more recent of the two tools.