Head-to-head · profiles checked Sep 29, 2026
Pick Antigravity if you want a free start and several ways to work: a desktop app, CLI, Python SDK and IDE extensions. Its individual plan is $0 per month with basic weekly rate limits. Pick Gemini CLI if you want an open-source terminal agent with API-key or Vertex AI sign-in. Its site says unpaid-tier users were moved to Antigravity CLI on June 18, 2026, and neither tool shows Pro or Ultra prices.
We based this comparison on our Google Antigravity and Gemini CLI profiles, both verified 2026-09-29 from official vendor pages; it uses no third-party benchmarks and no vendor paid for placement.
Google Antigravity is the broader product: a desktop app, CLI, Python SDK and IDE extensions, with a $0 individual plan that has basic weekly rate limits. Gemini CLI is a single open-source (Apache 2.0) terminal agent that you can authenticate with a Google account, an AI Studio API key or Vertex AI. Its site says unpaid-tier and Google One users were moved to Antigravity CLI on June 18, 2026.
Neither page shows a USD price for Google AI Pro or Ultra. Pick Antigravity to start free; pick Gemini CLI if you want open source and API-key or Vertex AI billing.
Based on our Google Antigravity profile and Gemini CLI profile, both verified 2026-09-29 from official vendor pages; the Antigravity privacy and docs pages and the Gemini CLI privacy page could not be read, and no benchmark was run.
Our own captures of each vendor's public pages. Click a frame for the full-size image.
If you only want the answer, this is the table. Everything below is the evidence from the two documented profiles.
| You want to | Use | Why |
|---|---|---|
| Try an AI coding agent for free | Google Antigravity | Antigravity has a $0 individual plan; Gemini CLI's free tier was moved to Antigravity CLI |
| Work from the terminal | Either | Antigravity offers a terminal-first CLI; Gemini CLI is a terminal agent |
| Run several agents at once | Google Antigravity | Antigravity 2.0 manages several local agents in parallel and has background subagents |
| Use your regular IDE | Google Antigravity | Antigravity lists IDE extensions for VS Code, Visual Studio, JetBrains and Zed |
| Build a custom agent in code | Google Antigravity | Antigravity provides a Python SDK for custom agents |
| Add tools through MCP | Gemini CLI | Gemini CLI documents MCP support and extensions |
| Inspect or modify the source code of the tool | Gemini CLI | Gemini CLI is open source under Apache 2.0 |
| Sign in with an API key or Vertex AI | Gemini CLI | Gemini CLI supports a Google account, AI Studio API key or Vertex AI credentials |
| Look up current information while coding | Gemini CLI | Gemini CLI lists Google Search grounding and web fetch |
| Buy for a business or company | Either | Antigravity: Business via Google Cloud, contact sales; Gemini CLI: Developer Program, Vertex AI |
| Plan | Tool | Price | Limits |
|---|---|---|---|
| Antigravity Individual | Google Antigravity | $0/mo | Basic weekly rate limits |
| Antigravity with Google AI Pro | Google Antigravity | Not stated | More rate limits; flexible AI credit pool |
| Antigravity with Google AI Ultra | Google Antigravity | Not stated | Even more rate limits; flexible AI credit pool |
| Antigravity Business via Google Cloud | Google Antigravity | Custom (contact sales) | Not stated |
| Gemini Enterprise Standard/Plus | Google Antigravity | From $30/seat/mo | Not stated |
| Antigravity API pay-as-you-go | Google Antigravity | Usage-based | Not stated |
| Gemini CLI Free (Google account) | Gemini CLI | $0/mo | Verify current availability |
| Gemini CLI with Google AI Pro | Gemini CLI | Not stated | Higher limits than free |
| Gemini CLI with Google AI Ultra | Gemini CLI | Not stated | Highest limits |
| Google Developer Program | Gemini CLI | Not stated | Higher limits |
| AI Studio API key | Gemini CLI | Pay as you go | Free-tier data may be used to improve products |
| Vertex AI | Gemini CLI | Google Cloud billing | Regional data residency options |
USD as published on each vendor's pricing page, checked Sep 29, 2026. Google Antigravity pricing in full · Gemini CLI pricing in full
| Google Antigravity | Gemini CLI | |
|---|---|---|
| Messages / rate limits | Individual: basic weekly rate limits; Pro and Ultra: more rate limits and a flexible AI credit pool | Free: verify current availability; Pro higher than free; Ultra highest; exact numbers not stated |
| Context / file size | Not stated | Context window not stated |
| Seats / team | Business via Google Cloud (contact sales); Gemini Enterprise Standard/Plus from $30 per seat per month | Google Developer Program for teams; Vertex AI for enterprises; no seat price stated |
| Feature | Google Antigravity | Gemini CLI |
|---|---|---|
| Desktop app | Yes (Antigravity 2.0) | Not stated |
| Terminal CLI | Yes, with background subagents | Yes |
| IDE extensions | Yes (VS Code, Visual Studio, JetBrains, Zed) | IDE integration documented |
| SDK | Yes (Python) | Not stated |
| Web search | Not stated | Yes (Google Search grounding) |
| MCP / extensions | Not stated | Yes |
| Open source | Not stated | Yes (Apache 2.0) |
| API | Yes, consumption-based | API key sign-in; AI Studio and Vertex AI billing |
| Mobile apps | Not stated | Not stated |
| Google Antigravity | Gemini CLI | |
|---|---|---|
| Training on your data | Not stated on the pages read | Free-tier data may be used to improve products; AI Studio pay-as-you-go offers privacy |
| Retention | Not stated on the pages read | Not stated |
| Business controls | Not stated | Enterprise configuration docs, trusted folders, policy engine; Vertex AI regional data residency |
Taken from each vendor's published policy pages at the time of our check. Policies change; the source links are at the bottom.
Google's agentic development platform: desktop app, CLI, SDK and IDE extensions for working with coding agents.
Free stops at: Basic weekly rate limits
Verified antigravity.google (opens Google Antigravity website in a new tab)
Free · paid from $30/mo US · checked Sep 29
Open-source terminal AI agent from Google bringing Gemini to the command line; site notes unpaid and Google One users moved to Antigravity CLI.
Free stops at: Verify current availability
Verified geminicli.com (opens Gemini CLI website in a new tab)
Pricing US price unconfirmed
No. Antigravity is a platform with a desktop app, CLI, Python SDK and IDE extensions. Gemini CLI is a separate open-source terminal agent. The Gemini CLI site says unpaid-tier and Google One users were moved to Antigravity CLI on June 18, 2026.
Antigravity has a $0 individual plan with basic weekly rate limits. Gemini CLI listed a free tier through a Google account, but the site says unpaid-tier users were moved to Antigravity CLI, so verify current availability before relying on it.
Not stated. Neither the Antigravity pricing page nor the Gemini CLI plans page shows a USD price for Google AI Pro or Ultra. The only dollar figure in our data is Gemini Enterprise Standard/Plus at $30 per seat per month on Antigravity.
Gemini CLI is open source under Apache 2.0, per its README. Our Antigravity profile does not state a license, so we cannot confirm that it is open source.
Only official vendor pages. No third-party benchmarks, forum threads or press were used. How we review.
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