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Substack vs GPT Store (custom GPTs)

Head-to-head comparison for content & creator side hustlers.

Factor
Substack
GPT Store (custom GPTs)
Earnings
$0-$5k+/mo
Rev share (usage-based)
Time
5-10 hours
5-10 hours
Difficulty
Intermediate
Beginner
Startup cost
$0
$0
Location
remote
remote
Skills
writing
prompting, niche expertise, AI
Substack guide →GPT Store (custom GPTs) guide →

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