Google AI Ultra 5x costs $100/mo; Google AI Pro costs $20/mo. More usage is expected from the more expensive plan; the question is whether it buys anything else.
Google AI Pro vs Google AI Ultra 5x: choose Google AI Pro unless you already hit its limits. Measured on Google AI Pro, one pass of our fixed task set fits about 80 tasks a week with Gemini 3.8 Flash. Google AI Ultra 5x costs $100/mo; Google AI Pro costs $20/mo.Measured
Our verdict
Choose Google AI Pro unless you already hit its limits. Google AI Ultra 5x gives you more usage and more of the Google bundle, but it does not improve Antigravity or unlock a better coding model.
The $20 plan is the better place to start. Upgrade only after the limit becomes a real problem.
Google AI Pro has no Gemini model we would pick for coding now. Sonnet 5.5 does the fast, cheap work better. Antigravity is rough and often leaves you guessing what it is doing. The plan also includes 5 TB of storage, NotebookLM, YouTube Premium Lite, Home Premium and Gemini in Google apps.
Pros
5 TB of storage
A broad Google services bundle
Cons
No Gemini model we would pick for coding
Antigravity is rough
Best for People who want basic AI usage and will use the Google bundle.
How far it goes: about 4 to 6 times a week
Our whole real-world issues and spec planning pass runs about 4 to 6 times a week on this plan, depending on which model you run.
That works out at about 73c to $1.09 of the subscription per run, at the list price.
Measured on this plan, at 15.9% to 23.7%/1w of its allowance per run. A share belongs to the plan it was measured on, so we never subtract one plan's from another's.
$100 buys more Gemini usage and a larger Google bundle. It does not improve Antigravity or the available models. Start with the $20 AI Pro plan and upgrade only if its usage limit blocks your work.
Pros
More Gemini usage
A larger Google services bundle
Cons
The same rough Antigravity agent
The same models as the $20 plan
Best for Google AI Pro users blocked by its usage limit.
How far it goes: we have not measured this plan
Same Antigravity CLI as AI Pro with a bigger allowance - the AI Pro scorecards are the closest evidence.
Verdicts and prices are the quiz's versioned editorial catalog, last reviewed 2026-10-01. The plan cards keep measured evidence separate from the recommendation. Any other pair composes on the subscription comparison, and the quiz turns your answers into a recommendation.