Looking for an alternative to Google Antigravity?
Google Antigravity is Google's agentic IDE and CLI, built around Gemini models, with quotas set by your Google AI plan; Standard Compute is a cost-optimized API for open agents such as OpenCode and Hermes, where the router sends each step to the cheapest model that can do it, Gemini, Claude and GPT included, on one monthly budget.
TL;DR
Stay on Antigravity if you want Google's IDE and Gemini covers your work. Switch the agent work to an open agent on Standard Compute when the five-hour and weekly refreshes stop you, or when you want Claude or GPT without paying for Ultra.
What Google Antigravity offers
Individuals $0 with basic weekly rate limits; Google AI Pro $20 a month with a quota refreshed every five hours until a weekly limit; Google AI Ultra $100 (5x Pro's tokens) or $200 (20x), with the highest quota and third-party models; business seats through Google Cloud from $30 per seat a month, or pay as you go. Gemini models share one rate limit drawn down at API pricing, and non-Gemini models have a separate fixed limit. Above the quota, Pro and Ultra users can buy AI credits at Gemini Enterprise consumption pricing. Bring-your-own-key and custom endpoints are not supported. (Verified on antigravity.google pricing, plans docs and Google's May 19, 2026 plan update, 2026-11-07.)
- An agent manager that runs agents across the editor, terminal and a browser they control
- Google's newest Gemini models first, with a free plan to start
- Antigravity CLI for the terminal next to the IDE
- Business seats with spend caps and admin controls through Google Cloud
Why people look for an alternative
- Quotas are set by capacity and plan, with no published amounts, refreshed every five hours or weekly
- Pro's five-hour refresh stops once its weekly limit is reached
- Third-party models only on Ultra, on a separate fixed limit
- No bring-your-own-key or custom endpoint for more capacity
Google AI Pro vs Google AI Ultra vs Standard Compute
Google's plans buy Antigravity quota that refreshes every five hours, up to a weekly limit on Pro. Standard Compute buys a published monthly budget for the open agent of your choice, with a router that keeps the cost per step down.
| Option | Price | How the limit works | Models |
|---|---|---|---|
| Google AI Pro | $20 | Quota refreshed every five hours until a weekly limit; AI credits after it | Gemini models |
| Google AI Ultra | $100 or $200 | 5x or 20x Pro's tokens, the highest weekly limits | Gemini plus third-party models, on a separate fixed limit |
| Standard Compute | From $19, $19 compute budget | One monthly budget for every model; stops at 100%, no overage | Gemini, Claude, GPT and open models; the router picks per step |
Prices per month in USD, checked November 7, 2026 on Google's Antigravity plan update and plans docs (linked).
Which one fits your work
| Pick | When |
|---|---|
| Standard Compute | Open agents (OpenCode, Hermes, Claude Code, Codex CLI) that you want on one key with Gemini, Claude, GPT and open models |
| Long agent runs that would hit five-hour and weekly refreshes | |
| Teams that need opt-in Europe or US rules per company, team or key, and no training on or storing of prompts | |
| A published monthly budget instead of quotas set by capacity | |
| Google Antigravity | You want Google's agentic IDE with browser control and its artifacts |
| Gemini models cover your work and the free or Pro quota fits | |
| Your company already buys Google Cloud seats |
Switching takes one config change
Standard Compute is OpenAI-compatible, so any tool or SDK that lets you set a custom base URL migrates in minutes:
Base URL = https://api.stdcmpt.com/v1 API key = your Standard Compute key Model = standardcompute
Setup guides for OpenClaw, Hermes, OpenCode, Cursor, Cline, Aider and more are on the integrations page.
FAQ
Can I use my own API key in Antigravity?
No. Google's plans docs say bring-your-own-key and bring-your-own-endpoint are not currently supported. Above the quota, Pro and Ultra users can buy AI credits instead.
What is the best Google Antigravity alternative?
An open agent on a cost-routed API, if you want to choose the models and see the budget. OpenCode and Hermes do agentic coding from the terminal and take any OpenAI-compatible key. On Standard Compute the router sends each step to the cheapest model that can do it, providers are vetted for price, uptime and speed with automatic fallback, and opt-in Europe or US rules apply per company, team or key. If you want an IDE with a browser-controlling agent, Antigravity is still the more complete product.
How do Antigravity rate limits work?
By plan. Without Pro or Ultra the quota refreshes weekly; on Pro it refreshes every five hours until a weekly limit; Ultra has the highest quota and weekly limits. Google says the limits are set mainly by available capacity, and complex tasks use more of them than simple ones.
Is Antigravity or Standard Compute cheaper?
For Gemini-only work inside the free or Pro quota, Antigravity is. Standard Compute plans cost $19 to $249 a month for a fixed compute budget across Gemini, Claude, GPT and open models, which pays off when you would otherwise need Ultra for third-party models or keep hitting the weekly limit.
Sources: Antigravity pricing; Antigravity plans docs; Changes to Antigravity plans (May 19, 2026)
