A side-by-side look at Claude and ChatGPT and OpenAI built only from the 29 real use cases on this site that use them. We don't test tools, rate them or list prices. Every result is what the linked source reports.
| Claude | ChatGPT and OpenAI | |
|---|---|---|
| Use cases on this site | 19 | 11 |
| Top business types | online stores (6), retail shops (5) and restaurants & cafés (3) | real estate (3), restaurants & cafés (3) and retail shops (2) |
| Top jobs | operations & admin (11), bookkeeping & invoices (9) and marketing & social (5) | operations & admin (5), lead follow-up (3) and scheduling & bookings (2) |
| Where the stories come from | 15 owners' own stories, 1 company case study and 3 builder posts | 1 owner's own story and 8 company case studies |
| With a reported result | 14 of 19 | 7 of 11 |
Both are used for operations & admin (Claude 11, ChatGPT and OpenAI 5), bookkeeping & invoices (Claude 9, ChatGPT and OpenAI 2), marketing & social (Claude 5, ChatGPT and OpenAI 2), inventory & ordering (Claude 4, ChatGPT and OpenAI 2), lead follow-up (Claude 3, ChatGPT and OpenAI 3), scheduling & bookings (Claude 2, ChatGPT and OpenAI 2), email (Claude 2, ChatGPT and OpenAI 2) and customer support (Claude 1, ChatGPT and OpenAI 1). 1 use case uses both.
A Connecticut venue owner used Claude Code to build 80+ n8n workflows in 28 days: POS sales reports, food cost tracking, staff tools, an event CRM and demand forecasts, with no new monthly software fees.
A finance lead had Claude Code connect to the QuickBooks API, copy about 60,000 ledger lines into a database daily, flag unmapped accounts, and move a year of wrongly coded transactions in minutes.
An owner of several small Amazon brands replaced a hired bookkeeper with Claude, which keeps the books and a monthly ledger per brand, asking him about any charge it can't place.
A stay-at-home mom who runs a resale business (buying book pallets and flipping items) hands her reselling to-do list to ChatGPT to work on overnight, so she can spend her days on other parts of the business and with her kids.
Leads from portals, forms and social go into HubSpot, get an instant AI qualifying reply, and go to the best-fit agent with a briefing. First-contact time dropped from about 6 hours to under 30 minutes.
A four-café chain put its 25-page handbook into a custom GPT and connected Notion, so staff ask questions on an in-store iPad. Onboarding went from weeks to days and staff WhatsApp questions dropped by half.
All 11 ChatGPT and OpenAI use cases →
It depends on the job and the business. On this site, both are used most for operations & admin, and the business type that uses each most is online stores for Claude and real estate for ChatGPT and OpenAI. Read the examples from businesses like yours, then try the one that fits. We don't rate tools.
19 use cases use Claude and 11 use cases use ChatGPT and OpenAI; 1 uses both. Each one links to its source.
No. This page is built only from the use cases on this site. Paid spots on this site are always labeled Sponsored.
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