Claude Max 5x costs $100/mo; ChatGPT Plus costs $20/mo. The extra money buys more usage and adds Fable, so this is also a capability upgrade.
ChatGPT Plus vs Claude Max 5x: choose Claude Max 5x if you keep hitting a $20 limit. Measured on ChatGPT Plus, one pass of our fixed task set fits about 85 tasks a week with GPT-6 Astra. Claude Max 5x costs $100/mo; ChatGPT Plus costs $20/mo.Measured
Our verdict
Choose Claude Max 5x if you keep hitting a $20 limit. It gives Opus 5.5 five times the Pro allowance, plus Fable.
Choose ChatGPT Plus if $20 is the budget and you want Codex. Claude Pro covers hard work with Opus 5.5 and small tasks with Sonnet 5.5 at the same price.
$20 gets you Codex with every OpenAI model, including Astra. Luna handles high-volume small tasks at a fraction of the quota. OpenAI's extra resets are getting fewer and fewer, so don't rely on them lasting much longer.
Pros
Every OpenAI model, including Astra
Luna is cheap on quota
Generous allowance while the extra resets last
Cons
Opus 5.5 is stronger at the same price
Astra can drain the whole 5-hour window in one prompt
The current allowance depends on temporary extra resets
Best for People who want Luna for high-volume small tasks.
How far it goes: at least 15 times a week, and more than 100 for the cheapest model
Our whole real-world issues and spec planning pass runs at least 15 times a week, and more than 100 for the cheapest model on this plan, depending on which model you run.
That works out at about under 5c to 28c of the subscription per run, at the list price.
Measured on this plan, at <1% to 6%/1w 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.
$100 gives Opus 5.5 five times the Pro allowance. Opus 5.5 is light enough on the limit to keep several agents running through the day. Fable is included for the hardest planning, but Opus 5.5 now covers most of it. Move here when the Pro limit stops you.
Pros
Five times the Pro allowance
Room for several Opus 5.5 agents
Sonnet 5.5 for smaller things and simple tasks
Fable for the hardest planning
Cons
Pro covers most single-agent days for $80 less
Best for People who keep hitting the Claude Pro limit. Start on Pro first.
How far it goes: at least 15 times a week, and more than 100 for the cheapest model
Our whole real-world issues and spec planning pass runs at least 15 times a week, and more than 100 for the cheapest model on this plan, depending on which model you run.
That works out at about under 23c to $1.84 of the subscription per run, at the list price.
Measured on this plan, at <1% to 8%/1w 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.
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.