TL:DR
Has Claude 3.7 Thinking at it’s core
Uses the whole 200k context window of the model
Has a very high tool call limit
Can read more code at once
IMPORTANT: Only available via usage pricing, costing $0.05 per prompt AND $0.05 per tool call!
Likely not for the average user
As many of you have realized in your own usage, Claude 3.7 is far from just a minor upgrade from Claude 3.5.
It’s fundamentally a different model with a very different way of working to its predecessor. It’s intelligent but also highly creative and can succeed where other models fail. However, it also does a lot better with larger context than any model we’ve tested in Cursor so far.
To unlock the potential of this new way of working, we’ve been quietly cooking and can now announce max mode for Claude 3.7 is now available to users on the latest versions of Cursor 
it is our more powerful setup for Claude 3.7. With the Claude 3.7 thinking model at its core, with it selected in your model dropdown, no cost will be spared in completing your prompts and edits!
This new option is capable of more than any of Cursor’s existing models, combining the intelligence of Claude 3.7 with the contextual gathering of Cursor, to unlock edits and capabilities beyond what has been possible so far.
Behind the scenes, we push Claude 3.7 to it’s maximum!
Firstly, the entire 200k context window is available and used, so you can fit as much of your code into your prompts as possible. Previous models have performed poorly with such tasks, but Claude 3.7 is the first model to perform better with such large context windows.
Secondly, we’ve bumped the tool call limit up to 200 in one chain, meaning it can make massive edits and gather context across your entire codebase in one go!
Finally, it can read much larger chunks of your code at once, meaning it needs fewer tool calls to learn what it needs to.
It is a ‘no expense spared’ feature and, as such, comes with intelligence and capabilities no other model has. However, the mode is expensive (see below) and is likely not worth the cost for the majority of users.
This model is our best choice for implementing large and complex projects all at once or for completing intricate code edits that require a deep understanding of their functionality to maintain them.
But for standard code edits, Cursor’s agent is still the most cost-effective solution and would be more than enough for >90% of all the prompts Cursor sees.
We only recommend this model to those who can afford to test its capabilities without concern about the cost and will make use of its additional intelligence.
All these changes come at a cost, and as such, usage of Max mode for Claude is not available within the base Pro plan.
Instead, the mode is only available by enabling usage-based pricing.
Max mode Claude 3.7 prompts cost $0.05 per request + $0.05 per tool call
This does mean that, if left unchecked, it would could cost $10 if left to loop through all 200 tool calls it has available.
However, it is the most powerful model offering we’ve had in Cursor to date, and we believe for many advanced users, the cost will be more than worth it in the productivity increase it gives in cases where models have failed in the past.
what did these people do to deserve this