The ChatGPT GPT Store today hosts 240+ custom GPTs tagged "Restaurant Operations Assistant." thMenu's own "QR Menu Generator GPT" generated 14K uses and 380 trial signups in four months. A new distribution channel for restaurant SaaS has quietly arrived.
GPT Store Is the New App Store
OpenAI's GPT Store opened in early 2024; by 2027 it serves 180M monthly users. Within restaurant searches, "menu builder," "recipe scaler," and "table management" rank in the top three. Each query represents organic, intent-rich traffic for your SaaS product.
Publishing a custom GPT costs nothing; ChatGPT Plus users reach it from the discovery feed. A "Try thMenu" button inside the GPT works as a CTA and converts to trial signup. Unlike traditional SEO, you don't wait six months — usage starts the day you publish.
The thMenu Case: 14K Uses in 4 Months
The "QR Menu Generator GPT" embeds thMenu's API and pricing tiers into its system prompt. When a user asks "build me a 20-item pizza menu," the GPT returns sample JSON and closes with a "publish on thMenu" link. Conversion sits at 2.7% — twice our Google Ads average.
Operating cost is near zero. A one-time prompt engineering pass plus an hour of weekly maintenance is enough. From 380 trial signups we converted 47 paying customers; effective CAC rounds to $0.
Cross-Platform Strategy
One promo content kit, adapted across three platforms:
Three targets:
- ChatGPT GPT Store — system prompt plus optional Actions
- Perplexity Spaces — knowledge base plus threaded prompts
- Claude Projects — uploaded docs plus custom instructions
Three hours of adaptation, three distribution channels. ChatGPT search volume for "build custom gpt for business" reached 90K per month in 2027 — the opportunity map for restaurant verticals is wide open.
FAQ
Is publishing a custom GPT paid? No. An OpenAI builder account is enough; publishing and distribution are free.
Do I need API integration (Actions)? No. Actions are optional. A "lite" version with only a system prompt and an external link still works.
Which metrics should I track? Active users, GPT-sourced UTM signups, and conversion rate. OpenAI's builder dashboard gives the basic data.
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