ChatGPT is a conversational AI from OpenAI used for drafting text, brainstorming, explaining topics, and many ad-hoc business tasks via chat (and related products).
Almost any small business needing a flexible assistant for writing, planning, customer-reply drafts, and light research — not a specialised e-commerce suite.
See official pricing — Free and paid tiers (e.g. Plus / Team / Enterprise offerings vary by region and time). Official site