Google Antigravity vs OpenAI Codex
Short answer: Google Antigravity is in AI IDEs; OpenAI Codex is in CLI coding agents, so they solve different parts of the job. OpenAI Codex has the lower entry price ($8/month vs $30/month for Google Antigravity). Both Google Antigravity and OpenAI Codex have a free plan.
| Google Antigravity | OpenAI Codex | |
|---|---|---|
| Type | AI IDEs | CLI coding agents |
| Vendor | OpenAI | |
| Status | Active | Active |
| Free plan | Yes (Individual plan $0/month with basic weekly rate limits.) | Yes (Codex is included in ChatGPT Free (quick coding tasks).) |
| Paid plans from | $30/mo | $8/mo |
| Plans | Individual: Free · Google AI Pro: — · Google AI Ultra: — · Gemini Enterprise Standard/Plus: $30 (annual) | Free: Free · Go: $8 · Plus: $20 · Pro: $100 · Business: $25 · Enterprise & Edu: — |
| Open source | Not verified yet | Not verified yet |
| Editors named on vendor page | terminal/CLI | terminal/CLI |
| Features named on vendor page | code review, code completion | MCP, self-hosting, code review, code completion, security scanning, background/cloud agents, SSO/SAML |
| Model families named | Gemini | Claude, OpenAI GPT |
| Checked | Oct 26, 2026 | Oct 26, 2026 |
“Named on vendor page” means the phrase appears on the vendor's own page we captured; it is not a hands-on test. Unknown values are left blank rather than guessed.
FAQ
Is Google Antigravity cheaper than OpenAI Codex?
OpenAI Codex has the lower entry price ($8/month vs $30/month for Google Antigravity). Prices are from each vendor's pricing page.
Do Google Antigravity and OpenAI Codex have free plans?
Both Google Antigravity and OpenAI Codex have a free plan.
What is the difference between Google Antigravity and OpenAI Codex?
Google Antigravity is in AI IDEs; OpenAI Codex is in CLI coding agents, so they solve different parts of the job. Google Antigravity is made by Google; OpenAI Codex is made by OpenAI. See the table for plans, editors and features each vendor names.