SuperGrok Heavy costs $300/mo; Claude Max 20x costs $200/mo. More usage is expected from the more expensive plan; the question is whether it buys anything else.
Claude Max 20x vs SuperGrok Heavy: choose Claude Max 20x. SuperGrok Heavy costs $300/mo; Claude Max 20x costs $200/mo. Prices are the providers' own list prices, and the verdict is ours rather than a score. The two plans are compared on what a week of real coding tasks fits, not on a feature list.Measured
Our verdict
Choose Claude Max 20x. It costs $100 less and gives you Opus 5.5 and Fable. SuperGrok Heavy charges more for Grok 4.7, the slowest coding agent we use.
$200 is the largest Claude allowance, with Opus 5.5 and Fable through Claude Code, the best CLI agent. That is room for many agents running all day. Opus 5.5 does most of the work. Fable is there for the hardest planning. Buy it only if the Max 5x limit is blocking your work.
Pros
The largest Claude allowance
Many Opus 5.5 agents all day
Sonnet 5.5 for smaller things and simple tasks
Fable for the hardest planning
Cons
Max 5x covers most days for $100 less
Best for People who keep hitting the Max 5x limit. Start on a cheaper plan first.
How far it goes: we have not measured this plan
Same models and harness as Claude Max 5x with more allowance - the Max 5x scorecards are the closest evidence.
The $100 plan already has more Grok usage than we can find a use for. We have no idea what anyone would do with the $300 plan. xAI does not publish a usage multiple. Coding still runs on Grok 4.7. We do not recommend this plan.
Pros
Includes X Premium+
Cons
No use case beyond the $100 plan
No published usage multiple
The same Grok 4.7 coding model
Best for Nobody.
How far it goes: we have not measured this plan
Same Grok CLI as SuperGrok Plus with a bigger allowance - the SuperGrok Plus scorecard is 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.