Gemini CLI was popular. Very popular. Over 104,000 people starred it on GitHub, and more than 6,000 improvements came from the community. For a one-year-old project, that's remarkable.
As of June 18, it's gone.
What Gemini CLI Actually Was
Quick background for anyone unfamiliar: Gemini CLI was a command-line tool — you typed commands into a black text window and got AI assistance right where developers work. No browser, no clicking around windows. Just type, get an answer.
A command line (CLI for short) isn't exotic, by the way. Claude ships as a CLI too — alongside a desktop app and editor plugins. For a lot of people who code, that black text window is simply the fastest route to AI: no mouse, no tab-switching, all keyboard.
Google launched it as an open-source project: anyone could read the code, modify it, improve it. Like a public recipe instead of a guarded secret. The free tier gave up to 1,000 requests per day. For developers who relied on it heavily, that was genuinely valuable.
The Replacement Is Called Antigravity — and the Catch Is Immediate
Google's replacement is Antigravity CLI. And it's the exact opposite in one crucial way: it's closed source.
No public code. No way to check what the tool is doing in the background. The community that spent a year building it is simply out.
The free tier has cratered, too. Before: up to 1,000 requests per day. Now: 20 per day — a cut of roughly 98%.
If you pay for a Pro plan, you get a weekly compute budget instead of the daily cap — an allowance based on computational resources used. In practice, developers report burning through it quickly. Once it's empty, you face a cooldown of up to a full week.
A whole week. Because of an exhausted budget.
What Does Antigravity Cost — and Can You Try It?
Antigravity CLI is currently free to use — up to the compute budget limit. Casual users probably won't exhaust it. Heavy users will hit the ceiling fast.
For getting started with AI in general, though, Antigravity CLI is genuinely not the right tool. It's for developers working directly in the terminal. If you want to use AI through a browser, Google Gemini on the web is still available and still free.
Who This Actually Affects
If you use AI mainly through a browser: this probably doesn't affect you at all. Gemini CLI was a command-line tool that most people never touch.
If you're a developer who used Gemini CLI regularly: you need an alternative. Claude Code, GitHub Copilot in the terminal, or open-source forks of the old Gemini CLI are options — though the forks are an open question for long-term viability.
Enterprise users with paid Gemini licenses: nothing changes for you, as of now.
The Actually Annoying Part
It's not that Google is shutting down a free tool. Every company can do that.
What's annoying is how: an active open-source community spent a year building this tool — voluntarily, because they liked it. Now there's a closed-source replacement, and their contributions have retroactively become unpaid groundwork for Google's proprietary product.
This has a name in the tech world: "open washing." Use open source to collect goodwill and contributions, then quietly switch to closed source when it becomes commercially interesting.
Whether Google planned this deliberately — impossible to say from the outside. The result is the same either way.
What This Means for You
There's a pattern that keeps showing up with AI tools: start free, build goodwill, then add a paywall or cut the free tier. Gemini CLI isn't the first example and won't be the last.
That doesn't mean free AI tools are worthless — quite the opposite. But when trying something new, it's worth pausing to ask: what happens if this stops being free? Would I have a problem?
Sometimes the answer is no. Sometimes it's worth looking early at options that don't depend on a single tech giant.