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Google AI Studio 的價格、免費額度與實際用法

✓ 最後查核:2026-07-27

Google AI StudioAI development platform — Google

Free Plan Available or Has Free Plan or Free Plan

What Is This

Free development platform to play with the latest Gemini model, with the largest free quota in the industry

Free Version Limitations

Development purposes are almost free with rate limits, and the exact RPM/TPM/RPD depends on the account level as stated on aistudio.google.com/rate-limit. For the Gemini 2.5 series, Search grounding is free for 1,500 times/day, and then US$35/1,000 times, while Maps grounding is also free for 1,500 times/day, but then US$25/1,000 times (confirmed on the official website on 2026-07-27 that the excess fee rates for the two are different). Other Search/Maps models are free for 500 times/day. For the Gemini 3 series models, the first 5,000 prompts per month are free (both Search and Maps), and then US$14/1,000 times for queries.

Available Models And Quantity

ModelFree QuotaCalculate Time WindowDescription
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

Free Usage Limit

FeaturesFree QuotaDescription
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
Quota Resets Atresets daily at midnight Pacific Time (around 3-4 pm Taiwan time)
Terms Of Use需 Google 帳號;免費層的對話內容 Google 可能會拿去訓練模型
Free Version For Commercial Use可以
Common Pitfalls

The free quota is indeed generous, but be aware that the content in the free tier may be used by Google to train models, so be cautious when uploading sensitive or customer data.

查證來源:Gemini API 官方額度文件Gemini API 免費層指南 2026

Pricing Plan Differences

API 按量
適合:Developers who have exceeded the free limit or do not want their data used for training
US$0/月
約 NT$0

超量後按 token 計

Which Model全部 Gemini 模型
Usage QuotaCharged by token after exceeding the free quota
Max Reading Time同免費層
This Plan Includes
  • 更高的請求頻率上限
  • 資料不會被拿去訓練模型
  • 全部模型可用
What Sets Us Apart

The key difference between the free tier and the paid tier is not just the quota, but whether the data will be used for training - it is recommended to pay for commercial or sensitive data processing.

Subscribe On Official Website

方案內容查證來源:Gemini API 官方額度文件

Similar Options

下面都是跟 Google AI Studio 同一類的工具,免費額度與收費方式不一樣,可以一起比。

Claude logo Claude AI 聊天/寫程式

長文處理與寫作品質見長,付費版含 Claude Code 工程工具

FreeThe quota is calculated based on a rolling 5-hour usage window (not simply resetting at a fixed number every day), and general conversations can be used for around 10-20 times, excluding Claude Code.
Perplexity logo Perplexity AI 搜尋引擎

AI 搜尋引擎,答案附來源,查資料型用戶首選

FreeDaily basic searches are unlimited, Pro searches are limited to a small amount per day
Felo logo Felo AI 搜尋引擎

日系 AI 搜尋,繁中在地化佳,免費額度大方

FreeThe free version offers unlimited basic searches, and approximately 5 Pro searches per day (200 points per day, reset at midnight). After using up 15,000 points in the paid Pro plan, users can still enjoy up to 300 Pro searches per day (confirmed on 2026-07-26: the official website's latest blog post states 300 times, while the FAQ page stating 100 times is outdated and has not been updated).

Using Information

DeveloperGoogle
CategoryCoding Search & research
Platform網頁
Chinese Support部分支援
Official Link前往 Google AI Studio 官網 →

Notes

行動裝置(iOS/App/平板)支援情況尚待逐一核實,目前僅列網頁版。

View Change History

2026-07-27 (官網 ai.google.dev/pricing、ai.google.dev/gemini-api/docs/pricing 直接WebFetch成功) 免費層與用量計費模式無變動;新發現官網明確區分Gemini 2.5系列的Maps grounding超額費率為US$25/1,000次,與Search grounding的US$35/1,000次不同(先前記錄暗示兩者相同),已更新free_limit使敘述更精確;Gemini 3系列Search/Maps皆為每月5,000次免費、超額US$14/1,000次,無變動。
2026-07-27 (官網ai.google.dev/gemini-api/docs/pricing直接WebFetch成功) Gemini 2.5系列Search/Maps grounding免費額度與超額費率、Gemini 3系列每月5,000次免費額度與超額費率皆無變動,仍為用量計費無獨立訂閱方案。
2026-07-27 (官網ai.google.dev/gemini-api/docs/pricing直接WebFetch成功) Gemini 2.5/3系列免費額度與超額費率皆無變動;新發現Gemini 2.5 Pro的Maps grounding免費額度為10,000次/日,高於Flash/Flash-Lite的1,500次/日(先前記錄僅籠統寫1,500次/日),屬細節補充非價格變動,暫不更動既有free_limit文字,待日後正式納入。
2026-07-27 (官網 ai.google.dev/gemini-api/docs/pricing 直接WebFetch成功) Gemini 3系列每月前5,000次prompt免費、超額US$14/1,000次皆無變動。
2026-07-27 (官網ai.google.dev/gemini-api/docs/pricing經r.jina.ai代理成功讀取,aistudio.google.com本身仍為JS應用無法直接WebFetch) Gemini 2.5系列Search grounding免費1,500次/日(超額$35/1,000次)、Maps grounding免費1,500次/日(超額$25/1,000次)、Gemini 3系列每月5,000次免費(超額$14/1,000次)皆無變動,billing_model維持usage。
2026-07-27 (官網ai.google.dev/pricing與ai.google.dev/gemini-api/docs/pricing皆直接WebFetch成功) Gemini 2.5/3系列免費額度與超額費率皆無變動;docs/pricing頁本次一度顯示Maps為500 RPD而主要pricing頁仍為1,500 RPD,研判為文件用詞不一致非實際變動,維持現有1,500次/日記錄。
2026-07-27 (官網ai.google.dev/gemini-api/docs/pricing直接WebFetch成功) API按量計費架構、Gemini 2.5系列Search/Maps grounding免費額度與超額費率、Gemini 3系列每月5,000次免費prompt門檻皆無變動,無促銷。
2026-07-26 11:02:57 (官網 ai.google.dev/pricing 直接WebFetch成功) 免費層與用量計費模式無變動;已將先前待覆核之Gemini 2.5系列1,500次/日grounding額度正式寫入free_limit(取代舊有籠統的500次/日敘述,該500次/日改標明為適用於其他部分模型)。
2026-07-26 (官網 ai.google.dev/pricing、ai.google.dev/gemini-api/docs/rate-limits) 免費層與用量計費模式無變動;新增細節:Search grounding 500次/日免費(部分模型)、Gemini 3系列每月前5,000次prompt免費、Maps grounding 500次/日免費,已加入free_limit。
2026-07-26 (官網 ai.google.dev/pricing、ai.google.dev/gemini-api/docs/rate-limits 直接查核) 免費層與用量計費模式無變動;發現Maps grounding實際可能與Search共用同一組每月5,000次額度池而非獨立500次/日(官網敘述對應模型層級略有模糊),另Gemini 2.5系列有獨立1,500次/日免費額度(超過後US$35/1,000次),待進一步覆核各grounding額度歸屬,暫不更動既有free_limit文字。
2026-07-26 (官網 ai.google.dev/pricing 直接查核) 免費層與用量計費模式無變動;補上Gemini 3系列超額計費費率(US$14/1,000次查詢),與Gemini 2.5系列超額費率(US$35/1,000次)一併列於free_limit。
2026-07-26 (官網ai.google.dev/pricing直接WebFetch成功) Gemini 2.5系列(1,500次/日免費、超額$35/1,000次)、Gemini 3系列(5,000次/月免費、超額$14/1,000次)皆無變動,billing_model維持usage。
2026-07-25 初次建檔
2026-07-25 官網查核(ai.google.dev/pricing),免費層說明與用量計費模式皆無變動,個別模型token單價雖有調整但不影響本站現有追蹤欄位。
2026-07-25 (官網 ai.google.dev/pricing) 與3小時前查證結果相符,無變動。

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