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.
The free version is sufficient and permanently free, with limits on the number of sources or notebooks, and does not require subscription or credit card.
Includes NotebookLM with a higher quota (400GB storage space), the newly added lowest-tier paid plan; 2026-07-30 correction: The previous note incorrectly stated "2TB", which is actually the capacity of another same-named US$9.99 SKU on one.google.com/about/plans, and is different from the US$4.99/gemini.google version (400GB) in this column, see the notes below for an explanation of the coexistence of the two SKUs.
Google AI Pro
US$19.99 / mo
Includes NotebookLM with higher quota (5TB storage space); original price was US$20, now US$19.99 on the official website
Google AI Ultra 5x
US$99.99 / mo
Corrected to US$249.99 with a two-tier structure (check directly on the official website gemini.google/subscriptions); includes NotebookLM with the maximum limit (20TB storage space), which is 5 times the usage of Pro
Google AI Ultra 20x
US$199.99 / mo
It has been revised from a single US$249.99 to a two-tier structure (confirmed directly on the official website gemini.google/subscriptions); includes the highest Quota for Gemini Notebook; Ultra is divided into two plans: 20TB and 30TB, with US$199.99 corresponding to the 30TB plan (the official usage table lists Ultra 20TB Plan and Ultra 30TB Plan), which is 20 times the usage of Pro. This plan is not listed on the one.google.com/about/plans page.
Which one should you pick?
Both offer a free plan. Compare paid tiers against your needs.
Google AI Studio has no public paid plan; Gemini Notebook starts at about US$4.99 / mo.
FAQ
Is there a free version of Google AI Studio?
Yes. 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.
How much does Google AI Studio cost?
The cheapest is the plan from Google AI Studio named Pay-as-you-go API, at about Official quote (upon inquiry).
Does Google AI Studio support Chinese?
Google AI Studio only partially supports Chinese.
Is there a free version of Gemini Notebook?
Yes. The free version is sufficient and permanently free, with limits on the number of sources or notebooks, and does not require subscription or credit card.
How much does Gemini Notebook cost?
The cheapest is the plan from Gemini Notebook named Google AI Plus, at about US$4.99 / mo.
Does Gemini Notebook support Chinese?
Gemini Notebook offers full Chinese interface support.
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