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Google AI Ultra 5x vs Kimi Allegro
Google AI Ultra 5x is for Antigravity users emptying the AI Pro window; Kimi Allegro is for daily use of an open-weight model you already like. Kimi Allegro costs $99/mo, 1.2x Google AI Ultra 5x's $80/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 5x is for Antigravity users emptying the AI Pro window; Kimi Allegro is for daily use of an open-weight model you already like.
Kimi Allegro costs $99/mo, 1.2x Google AI Ultra 5x's $80/mo.
We have not measured Google AI Ultra 5x on its own plan; its card below points at the closest graded evidence.
We have not measured Kimi Allegro on its own plan; its card below points at the closest graded evidence.
AI Pro's one real fault is the window: at about 13% of it per real-world run, eight runs a week is the budget. Ultra 5x exists to fix exactly that, and now that 3.7 Flash is worth running in volume, paying $80 for more of it is no longer a strange idea.
Pros
- Fixes the one thing wrong with AI Pro: the weekly window
- More of a model now worth running in volume
Cons
- Same Antigravity weaknesses at four times the price
- Chat users gain nothing over AI Pro
Best for Antigravity users emptying the AI Pro window.
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.
The leaderboard lists every plan we do grade.
The right tier for a daily Kimi habit, arriving at the wrong moment. Five times the credits sounds like the fix, but the thing that changed is the model: K3 does less than it did, and $99 of a weaker model is still a weaker model.
Pros
- Five times the entry-tier credits
- Enough allowance for daily use
Cons
- Buying volume does not fix the model
- Heavy use still burns credits quickly
Best for Daily use of an open-weight model you already like.
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 5x or Kimi Allegro?
Google AI Ultra 5x is for Antigravity users emptying the AI Pro window; Kimi Allegro is for daily use of an open-weight model you already like.
How much do Google AI Ultra 5x and Kimi Allegro cost?
Google AI Ultra 5x costs $80/month (public price as of 2026-08-12); Kimi Allegro costs $99/month (public price as of 2026-08-12).