not available OpenAI is not selling ChatGPT Pro 20x right now. ChatGPT Pro 5x is still available. Checked 2026-09-24.
Both cost the same $200/mo.
Claude Max 20x vs ChatGPT Pro 20x: choose Claude Max 20x. Both cost the same $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. Both plans cost $200. Claude gives you Opus 5.5 with room for many agents, plus Fable. ChatGPT Pro just gives you more allowance on the same Codex models.
Most people should save $100 and buy Claude Max 5x. If the choice is strictly between these two, Claude wins.
$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.
$200 gives Codex one weekly usage bucket with no 5-hour session window. It has four times the allowance of Pro 5x. You get every OpenAI model, including Astra. Buy it only if the Pro 5x weekly limit is blocking your work.
Pros
No 5-hour session window
Four times the Pro 5x allowance
Every OpenAI model, including Astra
Luna for high-volume small tasks
Cons
No Opus 5.5 or Fable
Best for Codex users blocked by the Pro 5x weekly limit.
How far it goes: we have not measured this plan
Same Codex CLI as ChatGPT Plus with twenty times its allowance - the Plus scorecards are 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.