Buy AI Plus at $4.99 if you want a chatbot, AI Pro at $19.99 if you need to pick the model. Divide each price by the usage multiple on its own card and Google’s consumer ladder is U-shaped rather than a staircase: AI Plus and AI Ultra 20x both cost $2.50 per 1x of free-tier usage, while AI Pro and AI Ultra 5x both cost $5.00. The two rungs most buyers actually choose are Google’s worst value per unit, and the step from Plus to Pro is the single most expensive move on the price list. What makes AI Pro worth its penalty is not capacity but entitlement — it is the first rung that lets you select the Pro model and Gemini 4 Argon. Students should buy nothing at all.
The ladder as Google publishes it
| Plan | Monthly | Models you can select | Usage | Flow credits | Storage |
|---|---|---|---|---|---|
| Free | $0 | Auto routing only | Standard limits | limited Nano Banana Pro | 15 GB |
| AI Plus | $4.99 | Flash-Lite, Flash | 2x free | 200 | 400 GB |
| AI Pro | $19.99 | + Gemini 4 Argon, Pro | 4x free | 1,000 | 5 TB |
| AI Ultra 5x | $99.99 | same, highest access | 5x AI Pro | 10,000 or 25,000‡ | from 20 TB |
| AI Ultra 20x | $199.99 | same, highest access | 20x AI Pro | 10,000 or 25,000‡ | from 20 TB |
All five consumer prices verified 5 November 2026 against Google’s subscriptions page, with per-plan model entitlements cross-checked against Google’s model access and limits article. No annual billing is offered on any consumer tier — monthly only, on every rung. ‡Google publishes “10,000 or 25,000 Google Flow Credits” across both Ultra price points without mapping either figure to either price. Our pricing tracker carries the dated change log.
Divide price by usage and the ladder is U-shaped
This is the table that is on no Google page. Ultra’s multiples are published against AI Pro rather than against the free tier, so they have to be restated on one denominator — 5x AI Pro is 20x free, and 20x AI Pro is 80x free — before any rung can be compared with any other.
| Plan | Price | Multiple of free tier | Cost per 1x of free-tier usage |
|---|---|---|---|
| AI Plus | $4.99 | 2x | $2.50 |
| AI Pro | $19.99 | 4x | $5.00 |
| AI Ultra 5x | $99.99 | 20x | $5.00 |
| AI Ultra 20x | $199.99 | 80x | $2.50 |
The symmetry is exact to the cent, and it means what you pay and what a unit costs you are not monotonically related. The cheapest paid plan and the most expensive plan are the same rate; the two in the middle — the $19.99 tier Google markets hardest and the $99.99 tier that reads like the sensible entry to Ultra — are both double it. Compare Claude’s ladder, where every rung costs exactly $20 per 1x: Anthropic sells a flat rate with no bulk discount, Google sells a bulk discount at both ends and a premium in the middle.
The step you are about to make is the most expensive one
Average rates are the wrong lens on an upgrade decision. What a buyer actually spends is the marginal cost of the units an upgrade adds.
| Step | Extra cost | Extra usage | Cost per added unit |
|---|---|---|---|
| Free → AI Plus | $4.99 | +1x | $4.99 |
| AI Plus → AI Pro | $15.00 | +2x | $7.50 |
| AI Pro → Ultra 5x | $80.00 | +16x | $5.00 |
| Ultra 5x → Ultra 20x | $100.00 | +60x | $1.67 |
The Plus-to-Pro step is the worst value on the price list, and it is the step most buyers make. Fifteen dollars buys two more units of free-tier usage; the same fifteen dollars spent above $99.99 buys nine.
At the other end, the $99.99 → $199.99 step is the only genuine bulk rate on the list: the second hundred dollars buys sixty units at $1.67 each, a third of the rate of the eighty before it. The first Ultra step buys no discount at all — $99.99 for 20x free is the same $5.00 per unit as $19.99 for 4x. Ultra only starts paying for itself at the top price point.
Flow credits run the other way
Google’s creative-studio allowance is the one meter on the ladder that behaves like a normal volume discount: 40 credits per dollar on AI Plus, 50 on AI Pro, 100 on Ultra 5x and 125 on Ultra 20x‡ (200, 1,000, 10,000 and 25,000 credits against the four prices). Monotonically increasing, roughly tripling from bottom to top — the opposite shape to the chat-usage table above. The two meters inside the same subscription reward opposite buying behaviour. If Flow is why you are subscribing, climb; if chat is, stop at Plus or jump straight to the top.
‡This table rests on the obvious reading of a mapping Google does not publish: the subscriptions page gives both Ultra tiers the same string, “10,000 or 25,000 Google Flow Credits”, without saying which belongs to which price. The reverse assignment would make the cheaper tier 5x better on credits, which no vendor does — so this is near-certainly the right way round, and it is still the only inferred number on this page.
Google AI Plus is sold twice, at two prices, with two storage amounts
The plan name is not a reliable handle. Google sells “Google AI Plus” on two of its own properties with different contents:
- gemini.google — Google AI Plus, 400 GB, $4.99/month (€4.99 in the euro zone).
- one.google.com/about/plans — the storage ladder’s middle rung, labelled “Google AI Plus (2 TB)”, read 5 November 2026 at €10.99/month.
That gap is not a currency conversion, and the rung above it proves it: on the same Google One page the top rung reads “Google AI Pro (5 TB)” at €21.99, exactly what the Gemini subscriptions page shows for AI Pro in the same currency. The two pages agree on AI Pro to the cent and disagree on AI Plus by more than 2x on price and 5x on storage. Shop the storage figure, not the plan name, and check which Google property you are buying from.
The second consequence removes an argument this site has made before. Google One’s paid ladder now has only three rungs — Basic at 100 GB plus the two AI plans — so 2 TB and 5 TB are no longer purchasable as storage alone. The old framing, that AI Pro’s 5 TB “replaces” a standalone 2 TB subscription and so costs an existing storage customer only the difference, no longer describes a choice anyone can make: there is no storage-only plan at those sizes to net out. Above 100 GB you are buying an AI plan whether or not you want the AI.
The euro ladder is not the dollar ladder
Google’s regional pricing is not a flat conversion, and the deviation lands on specific rungs. Read from the Irish subscriptions page on 5 November 2026:
| Plan | US | Euro zone | Gap |
|---|---|---|---|
| AI Plus | $4.99 | €4.99 | same number |
| AI Pro | $19.99 | €21.99 | +10% |
| AI Ultra 5x | $99.99 | €99.99 | same number |
| AI Ultra 20x | $199.99 | €219.99 | +10% |
Three rungs carry the dollar figure straight across; two carry a 10% premium. That changes the conclusion, not just the totals, because the premium falls on AI Pro and not on Ultra 5x: in euros the per-unit rates are €2.50 (Plus), €5.50 (Pro), €5.00 (Ultra 5x) and €2.75 (Ultra 20x) — so AI Pro stops tying with Ultra 5x and becomes the worst-value rung outright, and the marginal Plus-to-Pro step costs €8.50 per added unit against $7.50. European buyers pay the biggest premium at exactly the rung they are most likely to choose.
What the multiples are not
Every allowance here is a multiple of something Google has never quantified: the free tier’s entitlement is published as “Standard limits” and nothing more, so the whole ladder is denominated in an unknown unit. Three caveats follow.
- The unit is compute, not prompts. Limits “factor in the complexity of your prompt, the features you use, and the length of your chat”, refreshing every five hours up to a weekly cap. Media generation, Deep Research and the Pro model all burn it faster.
- Effort level moves the denominator. Each model exposes a low/medium/high effort setting, and Google states it “will also use more of your limit” — so the same 4x buys materially less work at high effort, a dial no per-unit table can capture.
- The escape hatch is unpriced. The footnote says you can extend limits by purchasing AI credits and links to a help article that never names a credit price, so headroom cannot be compared against a tier.
The arithmetic above therefore compares Google’s multiples against Google’s prices — internally consistent, and enough to rank the rungs against each other, which is the decision in front of a buyer. It does not tell you how many prompts $4.99 buys, and nothing Google publishes does. Treat any multiple as revisable while the price stands still: Anthropic did exactly that to its $200 tier on 30 October.
What each plan lets you select
Capacity is one axis; model choice is the other, and it is what actually separates AI Plus from AI Pro. Google’s model-availability table, read 5 November 2026:
| Plan | Flash-Lite | Flash | Pro |
|---|---|---|---|
| Without a plan | Auto routing | — | — |
| AI Plus | ✓ | ✓ | ✗ |
| AI Pro | ✓ | ✓ | ✓ |
| AI Ultra | ✓ | ✓ | ✓ |
Two things on that table are worth more than the ticks.
The free tier is not “Flash-Lite only”. The plan card says “Access to our Flash-Lite model”, but the entitlement table sets unsubscribed accounts to Auto, which Google describes as sending “each prompt to the Gemini model that suits it best. Most prompts will go to Flash-Lite, our fastest model. Prompts that need deeper reasoning may go to Flash or Pro.” Flash-Lite for everything is the fallback if smart model selection is turned off. That is a softer free tier than the one Google published in early October — and still the wrong shape for evaluation, for a reason unrelated to generosity: you cannot pin a model, so you cannot tell which one answered. Judge the product through Google AI Studio or the API.
Google’s entitlement table has no Gemini 4 Argon column at all. The plan cards badge “Includes Gemini 4 Argon” on AI Pro and AI Ultra and not on AI Plus, whose model bullet stops at Flash — but the support article governing model access lists only Flash-Lite, Flash and Pro, and the subscriptions page’s own FAQ copy still calls 3.1 Pro the leading model. Where they conflict the plan cards are the newer document. Gemini 4 Argon against Claude Opus 5.5 sizes what the top model is worth.
Students: do not buy anything
Google’s student page offers a free student plan for one year unlocking “4x higher usage limits in Gemini, more storage (5 TB), Gemini Spark, and Gemini Omni” — AI Pro’s two headline entitlements, at zero, against $239.88 for twelve months of AI Pro. It is the best-value row on the ladder by a wide margin and it is not on the subscriptions page. Note that Google words the benefit as usage limits and storage rather than as the AI Pro plan, so treat the Pro-model entitlement as unconfirmed rather than implied, and verify eligibility before relying on it.
The business rungs cannot be compared on this basis
Gemini Enterprise Business is $21 per seat per month and Standard/Plus is $30 — $1.01 and $10.01 above AI Pro — but Google publishes no usage multiple for either, so neither belongs on the per-unit table. The seat price buys governance instead: connectors to Microsoft 365, Workspace, HubSpot and Jira, a no-code Workflow Builder, and on Standard/Plus the VPC Service Controls, customer-managed encryption keys and sovereign data boundaries no consumer plan sells at any price. The storage trade runs the other way — AI Pro’s 5 TB against 25 GiB per seat, pooled. Buy a seat for controls, not capacity, and read the Gemini Enterprise platform rename first if you are building on it.
So which one
- Free — a demo, not a trial, and now an Auto-routed one. Useless for judging Gemini: you cannot see or choose the model.
- AI Plus, $4.99 — the value pick below $100. $2.50 per unit, twice AI Pro’s efficiency, 400 GB, and Flash is a strong model. Right for anyone who wants a capable chatbot and does not need to name the model behind it.
- AI Pro, $19.99 — the entitlement pick, at a 50% per-unit penalty. The cheapest rung that lets you select the Pro model and Gemini 4 Argon, plus 5 TB, Antigravity entry rate limits and YouTube Premium Lite. Against ChatGPT Plus at $20 it is the cheaper route to a frontier model. Buy it for Argon, not for capacity.
- AI Ultra 5x, $99.99 — the rung to skip. $5.00 per unit, identical to AI Pro, so the first $80 of the Ultra climb buys no discount. Defensible only if the jump to 10,000 Flow credits is what you need.
- AI Ultra 20x, $199.99 — the only real bulk rate on the list, $2.50 per unit and 125 Flow credits per dollar. If you are going to Ultra, go to the top.
- Students — free for a year. Claim that before considering anything above.
- Enterprise, $21 or $30 per seat — controls, connectors and compliance, not comparable on usage.
Coding buyers are choosing on another axis: Antigravity’s rate limits ride on these same plans, and Gemini CLI has its own allowance. Still picking a vendor rather than a tier? Start with the best AI chatbots guide, then price a real workload in the API cost calculator — for anything with a model ID in production, Google’s lifecycle terms matter more than any plan choice.
What changed
- 5 Nov 2026: All five consumer prices unchanged ($0 / $4.99 / $19.99 / $99.99 / $199.99), still no annual billing. Google’s entitlement table sets the free tier to Auto routing, not Flash-Lite only, and names no Gemini 4 Argon tier at all.
- 5 Nov 2026: Google One’s paid storage ladder is down to three rungs — Basic 100 GB plus the two AI plans — so 2 TB and 5 TB are no longer purchasable as storage alone.
- 14 Oct 2026: Gemini 4 Argon badged on AI Pro and AI Ultra at no extra cost — the change that makes AI Pro’s per-unit penalty worth paying.
- 9 Oct 2026: Flash and Pro withdrawn from unsubscribed personal accounts; AI Plus lost the Pro model on a per-account date delivered by email.
Frequently asked questions
Which Gemini plan should I buy?
Google AI Plus at $4.99 a month if you only need a chatbot, and Google AI Pro at $19.99 if you need to select the Pro model or Gemini 4 Argon. Those are the two answers, and the reason is arithmetic Google does not publish: divide each price by the usage multiple on the same card and AI Plus costs $2.50 per 1x of free-tier usage against AI Pro's $5.00, so Plus is twice the value per unit of everything below $100. What Plus cannot sell you at any price is model choice. Google's own entitlement table gives AI Plus Flash-Lite and Flash and marks Pro unavailable, so Gemini 4 Argon and the Pro model start at AI Pro. If you are a student, buy nothing: Google's student page offers 4x usage limits and 5TB of storage free for a year, which is AI Pro's two headline entitlements and $239.88 of list price.
Is Google AI Pro worth it at $19.99?
Worth it for the entitlement, not for the rate. AI Pro is the cheapest plan that lets you select the Pro model and Gemini 4 Argon — Google's entitlement table marks Pro unavailable on AI Plus — and at $19.99 against ChatGPT Plus at $20 it is the cheaper way to reach a frontier model. But on usage per dollar it is one of the two worst rungs on the ladder: $5.00 per 1x of free-tier usage, exactly double AI Plus, and identical to the $99.99 Ultra tier. The step from Plus to Pro is the most expensive move on the price list, $15.00 for two more units of usage, or $7.50 each. Buy AI Pro because you want Argon and the Pro model. Do not buy it expecting a volume discount, because climbing to it is a 50% per-unit penalty.
Google AI Ultra 5x or 20x — which one?
The $199.99 tier, if you are buying Ultra at all. The two Ultra price points are the only genuine bulk rate Google sells: $99.99 buys 5x AI Pro, which is 20x the free tier at $5.00 per unit — the same rate as AI Pro itself, so the first Ultra step buys you no discount whatsoever. The $199.99 tier buys 20x AI Pro, or 80x free, at $2.50 per unit. In marginal terms the second $100 buys sixty more units of usage at $1.67 each, against $5.00 for the eighty dollars before it. Doubling your spend triples your value per unit. One figure stops this being clean: Google publishes Ultra's Google Flow allowance as "10,000 or 25,000 Google Flow Credits" across both price points without ever saying which number belongs to which price, so the credit half of the Ultra decision rests on an inference rather than a published mapping.
Why does Google AI Plus show two different prices on two Google pages?
Because Google is selling the plan name twice. On gemini.google the plan is Google AI Plus at $4.99 a month with 400GB of storage. On one.google.com/about/plans the storage ladder's middle rung is labelled "Google AI Plus (2 TB)" at a different, higher price — read on 5 November 2026 in euros as €10.99/mo against the Gemini page's €4.99. That is not a currency artefact: the rung above it, "Google AI Pro (5 TB)", renders €21.99 on both pages, which is exactly what the Gemini page shows, so the two pages agree on AI Pro and disagree on AI Plus. The practical consequence is that the storage number is the thing to shop on, not the plan name. It also means you can no longer net storage out of the AI price: the only storage-only rung left on Google One is Basic at 100GB, because the 2TB and 5TB rungs have been renamed into the AI plans.
What does the free Gemini tier actually get, and can I evaluate Gemini on it?
More than the plan card says, and still not enough to judge the product. The subscription card reads "Access to our Flash-Lite model", but Google's own model-availability table sets accounts without a plan to Auto rather than to a named model, and explains that Auto sends most prompts to Flash-Lite while "prompts that need deeper reasoning may go to Flash or Pro". Flash-Lite-for-everything is the fallback when smart model selection is turned off, not the default. So a free account can reach better models occasionally but cannot choose one, which is the wrong shape for evaluation — you cannot tell which model answered. Evaluate through Google AI Studio or the Gemini API instead, both of which are untouched by the app's tiering and let you pin a model ID.
Why can't I work out how much usage a Gemini plan buys?
Because Google never publishes the base. Every allowance on the price list is a multiple — 2x, 4x, 5x, 20x — of either the free tier or AI Pro, and the free tier's own allowance is given as "Standard limits" with no quantity attached. Google's footnote explains the mechanism: limits are compute-based and "factor in the complexity of your prompt, the features you use, and the length of your chat", refreshing every five hours up to a weekly cap. Two things make the multiples softer still. Each model carries a selectable effort level of low, medium or high, and Google states plainly that raising it "will also use more of your limit" — so the same 4x buys less work at high effort. And the escape hatch is unpriced: the footnote says you can extend limits by purchasing AI credits and links to a help article that never names a credit price. Every per-unit figure on this page therefore compares Google's multiples against Google's prices, which is internally consistent, and does not claim to know how many prompts a unit is.