Antigravity vs Gemini CLI: what developers actually say
Based on 512 opinions on Hacker News from developers who discussed these two, most of them first-hand users.
Antigravity comes out ahead on volume and approval: 301 opinions and 238 firsthand accounts against 211 and 163, plus 45% approval against 29% (42% vs 25% in the last 90 days). It also leads on code quality (15 positive, 8 negative, against 6 and 17) and speed (19 positive and 7 negative, against 2 and 4). Both are weak on reliability (A 16 positive, 57 negative; B 7 and 55) and UX (A 11 and 29; B 7 and 28), and Antigravity's usage limits are a real constraint (18 positive, 31 negative). Gemini CLI is the better pick when you want an open-source terminal agent beside VS Code, though explicit preference favors Antigravity 10 to 3.
When developers explicitly said they prefer one or switched: 10 picked Antigravity, 3 picked Gemini CLI.
Choose Antigravity if
- Want the higher approval rate (45% vs 29%)
- Care about code quality and speed
- Can plan around usage quotas
Choose Gemini CLI if
- Prefer a terminal agent beside VS Code
- Want open-source code you can inspect
- Value long agent runs
Where each one wins and loses
Why developers switched
Picked Antigravity
Picked Gemini CLI
Summaries are paraphrased. Each links to the original comment.