Google shuts down Gemini CLI today for consumer tiers — forced migration to Antigravity CLI, no feature parity at launch

What’s happening

Per The Register, the Hacker News thread, the Groundy migration write-up, and Google’s own May 19 announcement:

• Effective date: June 18, 2026 — today
• Who loses access: free, Google AI Pro, and Ultra individual users of Gemini CLI and Gemini Code Assist extensions
• Who keeps it: Gemini Code Assist Standard/Enterprise license holders and paid Gemini / Enterprise Agent Platform API-key users
• Replacement: Antigravity CLI, binary agy — closed-source, Go-based
• No feature parity: Google explicitly warns there’s no 1:1 parity at launch
• Quota change: old free tier was 1,000 requests/day at 60 req/min; Antigravity CLI uses a weekly compute-based cap
• Migration runway: announced May 19, effective June 18 — 30 days, no grace period past the deadline

Why this matters

Three reads.

1. The best free terminal agent just closed its free door. Our Gemini CLI review called it “the only major terminal coding agent with a usable free tier” — 1,000 free Gemini 2.5 Pro requests/day was genuinely useful for students, OSS contributors, and budget-conscious developers. A weekly compute cap on a closed-source successor is a meaningfully worse deal for exactly that audience. The free on-ramp to agentic coding narrowed.

2. Closed-source agy reverses Gemini CLI’s biggest differentiator. Gemini CLI shipped Apache 2.0, fully open source — a real distinction from Claude Code and Codex. Antigravity CLI being closed-source (per what Google has published) gives that advantage up. Developers who chose Gemini CLI because it was open and inspectable don’t get that with the replacement.

3. Forced migration with no parity breaks automation. Different binary name, different auth, renamed plugin model — CI pipelines, scripts, and agent workflows built on gemini don’t transparently move to agy. “No grace period” means anything not migrated by today simply stops. For a tool Google pushed hard at I/O 2026, the abruptness is notable.

What it means for developers

If you relied on Gemini CLI’s free tier: there’s no clean one-to-one replacement at the same quota. Options:

• Antigravity CLI (agy) — the official path, but closed-source, weekly-capped, reduced features
• GitHub Copilot free tier — for in-editor free help (not terminal-first)
• Free tiers of Claude and ChatGPT — for general coding help via chat
• Paid terminal leaders — Claude Code and OpenAI Codex ($20/mo each) if you need serious agentic terminal work

If you’re on Standard/Enterprise: you’re unaffected — Gemini CLI keeps working for you. But plan for eventual convergence on Antigravity, which Google is clearly positioning as the strategic successor.

If you run automation on Gemini CLI: audit for the gemini binary today and migrate to agy (or an alternative) — anything unmigrated past June 18 fails.

The honest caveats

Antigravity CLI will likely improve. “No 1:1 parity at launch” implies features will be added. Today’s gap is a starting point, not necessarily the steady state — judge the replacement again in a few months.

Enterprise users aren’t affected today, so “Gemini CLI is dead” overstates it for the paid-license segment. The accurate framing is: dead for consumer/individual tiers.

Open-source status could change. Google hasn’t ruled out opening Antigravity CLI later; “closed-source” reflects what’s published so far, not a permanent commitment.

What it changes for Pick Right readers

If Gemini CLI’s free tier was in your stack, today is the day it stops — migrate to agy or pivot to one of the alternatives above. Our Gemini CLI review and best AI coding tools guide have been updated to reflect the consumer-tier shutdown.

For broader context, see the Gemini CLI review, the Claude Code review, the OpenAI Codex review, the best AI coding tools guide, and the Google I/O 2026 recap where the Antigravity push was first laid out.

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