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Google AI Ultra 20x vs Kimi Vivace
Google AI Ultra 20x is for Gemini at volume across Google apps, plus the agent; Kimi Vivace is for committed Kimi users at full-time volume. Kimi Vivace costs $199/mo, 1.1x Google AI Ultra 20x's $180/mo.
Our verdict
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.
The Moonshot AI ladder. Every Kimi tier runs the same open-weight K3 on the same credit mechanics, and the rungs are credit multiples of the $19 tier (roughly 2x, 5x and 10x its allowance). Pick a rung by how much you will use; the model is identical everywhere.
Google AI Ultra 20x is for Gemini at volume across Google apps, plus the agent; Kimi Vivace is for committed Kimi users at full-time volume.
Kimi Vivace costs $199/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.
We have not measured Kimi Vivace on its own plan; its card below points at the closest graded evidence.
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.
At $199 this sits next to the strongest plans on the page. Full-time volume on an open-weight model is a coherent thing to want; wanting it from a model moving the wrong way in our own use is the hard part.
Pros
- Ten times the entry allowance
- Full-time open-weight volume
Cons
- Priced against far stronger rivals
- K3 has got worse while the price has not
Best for Committed Kimi users at full-time volume.
How far it goes: we have not measured this plan
No graded Kimi subject at the moment; see the leaderboard for graded alternatives.
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, Google AI Ultra 20x or Kimi Vivace?
Google AI Ultra 20x is for Gemini at volume across Google apps, plus the agent; Kimi Vivace is for committed Kimi users at full-time volume.
How much do Google AI Ultra 20x and Kimi Vivace cost?
Google AI Ultra 20x costs $180/month (public price as of 2026-08-12); Kimi Vivace costs $199/month (public price as of 2026-08-12).