Is Apple Intelligence available on iPhone 14 Pro Max?

As Niel said - in detail: How to get Apple Intelligence - Apple Support

"Apple Intelligence requirements for iPhone, iPad, Mac, and Apple Vision Pro

• iPhone 16 models, iPhone 15 Pro, or iPhone 15 Pro Max; any iPad with A17 Pro or M1 and later; Mac with M1 or later; Apple Vision Pro
• iOS 18.1 or later, iPadOS 18.1 or later, macOS Sequoia 15.1 or later, and visionOS 2.4 
• Device language and Siri language set to the same supported language
• 7 GB of storage"

No. That model doesn't have enough RAM.

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