Tokens, the long context window, and confident wrong answers
Garbage output you can spot; a confident lie "you will never be able to catch".
He presents the 200k window as "the single most important strength of Claude" for non-technical users with long PDFs, pitch decks or big spreadsheets. Model choice matters for limits: on Pro he saw Opus 4 ("for complex tasks") and Sonnet 4 ("smart and efficient for everyday use"), plus older Haiku 3.5, Opus 3 and Sonnet 3.7.
Picking the right tool and model for big inputs.

