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.
Perplexity
Plan
Price
What you get
Pro
US$20 / mo
Annual payment of US$200 (approximately US$16.67-17/month); as of 2026-07-26, the official website confirmed a promotion of +US$40 free Computer quota through direct reading of agency information, with no specified end date.
Max
US$200 / mo
Annual payment of US$2,000 (approximately US$167/month, only available for web version); as of 2026-08-08, after re-checking perplexity.ai/pro twice without cache (x-no-cache), it is confirmed that the promotional banner displays "+US$450 free Computer credits" (LIMITED TIME) and the plan includes "35,000 bonus credits", both are listed simultaneously and not mutually exclusive. Previously, it was incorrectly recorded that they were the same number and the US$450 was excluded, this has been corrected; the deadline is not stated on the official website.
Education Pro
US$10 / mo
Limited to verified student identities, no expiration date indicated; from third-party sources, not directly confirmed on the official website
Enterprise Pro
US$40 / user / mo（5 user ≈ US$200/mo）
per seat, from third-party sources, not directly confirmed on the official website; educational/non-profit organizations have a discounted price of around US$30/seat/month (no expiration date specified, also from third-party sources)
Enterprise Max
US$325 / user / mo（5 user ≈ US$1625/mo）
per seat (annual payment of US$3,250); as evidenced by an official Help Center article, direct fetch still encounters a 403 error
Which one should you pick?
Both offer a free plan. Compare paid tiers against your needs.
On entry price, Gemini Notebook starts at US$4.99 / mo, cheaper than Perplexity (US$10 / mo).
FAQ
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.
Is there a free version of Perplexity?
Yes. Daily basic searches are unlimited, Pro searches are limited to a small amount per day
How much does Perplexity cost?
The cheapest is the plan from Perplexity named Education Pro, at about US$10 / mo.
Does Perplexity support Chinese?
Perplexity offers full Chinese interface support.
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