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Claude Max 20x vs Google AI Ultra 20x
Claude Max 20x is our pick of the top band. Claude Max 20x costs $200/mo, 1.1x Google AI Ultra 20x's $180/mo.
Our verdict
The Anthropic ladder. Every Claude plan is Claude Code on the same 5-hour rolling window, and a bigger rung buys a bigger allowance. The exception is Fable, which ships only on the Max tiers, so $20 buys Opus 5 and Sonnet 5 rather than the flagship. Our paired runs put the real 5x-to-20x gap nearer 5.7x than the advertised 4x.
The Google ladder. It splits at $20. Below that, AI Plus is Gemini in the chat apps and no coding agent worth the name. From AI Pro up, every rung runs the same Antigravity CLI with the same models; Ultra buys volume, not capability.
Claude Max 20x is our pick of the top band.
Claude Max 20x is for all-day work with several agents running at once; Google AI Ultra 20x is for Gemini at volume across Google apps, plus the agent.
Claude Max 20x costs $200/mo, 1.1x Google AI Ultra 20x's $180/mo.
We have not measured Google AI Ultra 20x on its own plan; its card below points at the closest graded evidence.
The strongest models available with the window to run them in parallel. It is also the easiest plan here to overpay for: Max 5x clears most single-agent days at half the price, so the honest case for 20x is several agents at once, not more capability.
Pros
- The strongest models available today
- Enough window for several agents at once
- The widest model choice of any plan here
Cons
- Max 5x covers most single-agent days for $100 less
- The value case leans on the current promotion
Best for All-day work with several agents running at once.
How far it goes: about 3 to 20 times per 5h window
Our whole Real-world issues suite runs about 3 to 20 times per 5h window on this plan, depending on which model you run.
That works out at about 7c to 47c of the subscription per run, at the list price.
Measured on this plan, at 5% to 34%/5h 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.
At $180 you change how much Gemini you get, not what it can do: the agents are the same ones as the $20 plan, where 3.7 Flash is the good one and 3.1 Pro is not. Buy it for volume across the Google apps, or not at all.
Pros
- The most Gemini volume money buys
- 3.7 Flash is worth having in quantity
Cons
- Capability is identical to the $20 plan
- The Antigravity weaknesses come along
Best for Gemini at volume across Google apps, plus the agent.
How far it goes: we have not measured this plan
Same Antigravity CLI as AI Pro with a far bigger allowance - the AI Pro scorecards are the closest evidence.
The leaderboard lists every plan we do grade.
Verdicts and prices are the quiz's versioned editorial catalog, last reviewed 2026-08-20; usage figures come from our own published runs and stay a share of each plan's own allowance. Any other pair composes on the subscription comparison, and the quiz turns your answers into a recommendation.
Frequently asked questions
Which should I pick, Claude Max 20x or Google AI Ultra 20x?
Claude Max 20x is our pick of the top band. Claude Max 20x is for all-day work with several agents running at once; Google AI Ultra 20x is for Gemini at volume across Google apps, plus the agent.
How much do Claude Max 20x and Google AI Ultra 20x cost?
Claude Max 20x costs $200/month (public price as of 2026-08-12); Google AI Ultra 20x costs $180/month (public price as of 2026-08-12).
How far does a suite run go on Claude Max 20x versus Google AI Ultra 20x?
Our whole Real-world issues suite fits about 3 to 20 times per 5h window on Claude Max 20x. We have not measured Google AI Ultra 20x on its own plan. Each figure is a share of that plan's own allowance, so the two are never subtracted.