Google AI Studio free tier: quotas, limits and gotchas
Google AI Studio Free Tier
Last verified: 2026-07-25 21:35:00
How Amo and Pimi look
Pimi, hold off on your victory tail-thump — the overage rates make my eyes spin: Search grounding overage is US$35/1,000 uses, Maps grounding is US$25/1,000 uses, Gemini 3 series is US$14/1,000 uses — three different rates, and one slip and your bill explodes. Chinese support is still only partial, with the documentation and parts of the interface still in English.
You're right to be careful about the bill, but just look at how generous the free quota is — Gemini 2.5 series Search and Maps grounding get 1,500 free uses per day, and Gemini 3 series gets the first 5,000 prompts free per month — that's basically a giveaway by industry standards. This is the front door for Taiwan developers to get the latest models for free!
So, do you need to pay or not?
Developers try out models and create prototypes: use the free quota directly, no need to think about it. Before going into production, calculate the excess fee rate carefully, as Search and Maps have different prices, don't get them mixed up.
Models and quotas
| Model | Quota | Window | Notes |
|---|---|---|---|
| Gemini 2.5 Flash | 每天 1,500 次請求 | 每天（太平洋時間午夜重置） | 每分鐘 10 次、每分鐘 25 萬 token |
| Gemini 2.0 Flash | 每天大量請求 | 每天 | 每分鐘 15 次、每分鐘 100 萬 token，額度最寬鬆 |
| Gemini 2.5 Pro（最強） | 每天只有 50 次 | 每天 | 每分鐘只有 5 次，最強模型額度最少 |
What you get for free
| Feature | Free tier | Notes |
|---|---|---|
| 需不需要信用卡 | 不用 | 這是它最大的優勢 |
| 免費額度期限 | 無期限 | 不是試用，是長期免費 |
Limits at a glance
- Quota reset: 每天太平洋時間午夜重置（約台灣時間下午 3-4 點）
- Commercial use: Allowed
- Conditions: 需 Google 帳號；免費層的對話內容 Google 可能會拿去訓練模型
Watch out for this
免費額度很大方沒錯，但要注意「免費層的內容 Google 可能拿去訓練模型」——放敏感或客戶資料要小心
When the free quota is insufficient, how much does it cost to pay for it?
| Plan | pricing | Description |
|---|---|---|
| API 按量 | 官方報價（洽詢） | 超量後按 token 計 |
Checked 2026-08-14
Information for Taiwanese users
- Payment method:The official way for Taiwanese developers to access the latest models for free
- Chinese support: partial
- Available platforms:web
Related
- Google AI Studio full review: pricing and features
- Google AI Studio alternatives
- All AI tools free tier comparison
Sources: Gemini API 官方額度文件 · Gemini API 免費層指南 2026
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