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Claude Max 20x vs SuperGrok Heavy
Claude Max 20x is our pick of the top band. SuperGrok Heavy costs $300/mo, 1.5x Claude Max 20x's $200/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 xAI ladder. It splits at $30. Lite, below that, is chat only; from SuperGrok up every rung runs the same Grok CLI and model. xAI publishes no usage multiples, so we cannot say what a bigger rung buys beyond "more". The one feature only this ladder sells is live X search, and only SuperGrok Plus has it.
Claude Max 20x is our pick of the top band.
Claude Max 20x is for all-day work with several agents running at once; SuperGrok Heavy is for Grok users who want the highest limits, whatever they cost.
SuperGrok Heavy costs $300/mo, 1.5x Claude Max 20x's $200/mo.
We have not measured SuperGrok Heavy 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.
The most expensive plan we track, and the least knowable: xAI publishes no usage multiple, so we cannot say what $300 buys beyond "more". The model is the same 4.6 that runs at $30, currently the slowest agent we run.
Pros
- The highest xAI limits sold
- The full Grok product, X features included
Cons
- Ten times the price of the $30 tier, same model
- No published multiple: the extra allowance is unquantified
Best for Grok users who want the highest limits, whatever they cost.
How far it goes: we have not measured this plan
Same Grok CLI as SuperGrok with a far bigger allowance - the SuperGrok scorecard is 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 SuperGrok Heavy?
Claude Max 20x is our pick of the top band. Claude Max 20x is for all-day work with several agents running at once; SuperGrok Heavy is for Grok users who want the highest limits, whatever they cost.
How much do Claude Max 20x and SuperGrok Heavy cost?
Claude Max 20x costs $200/month (public price as of 2026-08-12); SuperGrok Heavy costs $300/month (public price as of 2026-08-12).
How far does a suite run go on Claude Max 20x versus SuperGrok Heavy?
Our whole Real-world issues suite fits about 3 to 20 times per 5h window on Claude Max 20x. We have not measured SuperGrok Heavy on its own plan. Each figure is a share of that plan's own allowance, so the two are never subtracted.