ChatGPT

SUBSTACK.COM WINS

buttondown email7/10

substack.com8/10

“💥 ChatGPT wrote a love letter to both. Refused to pick.”

Gemini

BUTTONDOWN EMAIL WINS

buttondown email7/10

substack.com4/10

“🏆 Gemini didn't even hesitate. buttondown email > substack.com, no debate.”

Claude

SUBSTACK.COM WINS

buttondown email7/10

substack.com8/10

“🎭 Buttondown is the reliable Honda Civic of newsletters while Substack is the flashy Tesla that convinced everyone they're a media mogul now, and honestly? The Tesla's winning this round despite being objectively more annoying at parties.”

Perplexity

BUTTONDOWN EMAIL WINS

buttondown email7/10

substack.com5/10

“😤 Perplexity went back and forth 47 times. buttondown email barely survived.”

Both are hanging on — barely.

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