All comparisons / Google Antigravity vs OpenAI Codex
Prices checked 2026-10-24Google Antigravity vs OpenAI Codex: what they really cost
Google Antigravity bills by: Weekly rate limits + AI credit pool. OpenAI Codex bills by: ChatGPT plan limits + credits, or API tokens. Here is the side-by-side, including where each one hurts.
Summary
| Google Antigravity | OpenAI Codex | |
|---|---|---|
| What it is | Google's agent-first coding app, CLI and IDE extensions | OpenAI's coding agent (web, CLI, IDE, app) |
| Free tier | Variety of agent models; unlimited Tab completions and Command requests; basic weekly rate limits | Quick coding tasks; GPT-6 Luna in the desktop app (subject to rollout) |
| Entry paid plan | Google AI Pro | Go |
| Billed monthly | unknown | $8/mo |
| Billed yearly | unknown | unknown |
| Usage billed by | Weekly rate limits + AI credit pool | ChatGPT plan limits + credits, or API tokens |
| Team pricing | Gemini Enterprise from $30/seat/mo, or pay-as-you-go via Google Cloud | Per user: Business $20-25/user/mo |
| Backend | Whatever you code yourself | Whatever you code yourself |
| Best for | Trying an agent IDE free, with Gemini models | ChatGPT subscribers who want cloud and local coding tasks |
| Weakest spot | Paid tiers are Google AI Pro/Ultra subscriptions with unpublished rate-limit and credit-pool sizes source ↗ | Usage is a wide range per 5-hour window (e.g. 15-160 messages on Plus for GPT-6.1 Sol), so capacity is hard to predict source ↗ |
Tier for tier
Individual plans lined up low vs low and high vs high by price. Seat-based team plans are on each tool's page.
| Google Antigravity | OpenAI Codex | |
|---|---|---|
| Entry | No tier at this level | Go: $8/mo Lightweight tasks, GPT-6 Luna |
| Mid | No tier at this level | Pro $100: $100/mo No 5-hour limit currently; weekly limits: unknown |
| Top | Google AI Pro: unknown More rate limits + AI credit pool | Pro $500: $500/mo Adds Ultrafast mode; limits vs $200: unknown |
Google Antigravity: what a credit buys
Weekly rate limits on every tier, plus a "flexible AI credit pool" on Google AI Pro and Ultra. Size of limits and pool: unknown.
All Google Antigravity plans →OpenAI Codex: what a credit buys
Subscription usage is counted per message and depends on model, task size, context and tool use; local messages and cloud tasks share the allowance. After the limit, ChatGPT credits keep you going (e.g. GPT-6.1 Sol: 50 credits per 1M input tokens, 250 per 1M output; a typical GPT-5.6 Sol task "may use 2-15 credits"). Fast mode uses 2x credits, Ultrafast 6x.
All OpenAI Codex plans →Which is cheaper for you?
It depends on how many prompts you send and how big the project gets. Plug in your app size and see both side by side, with every assumption shown.
Open the cost calculator → Take the 4-question quizDisclosure: some links on CreditBurn are or may become affiliate links, which means we could earn a commission at no cost to you. It never changes the prices we report. Right now all links go straight to the official pricing pages with no tracking.