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Compare grocery prices across stores

โ€œI want to know which store is cheapest for my usual list.โ€

AI can check your list across a few store websites, including sales, and tell you where to shop or how to split it.

Fix it yourself in 3 steps

  1. Write your usual list with brand and size.
  2. Ask the AI to price it at 2โ€“4 stores near you, noting sales and delivery fees.
  3. Shop at the winner or split the list.

Copy this prompt

Price this list at [stores] near [zip]: [items with brand and size]. Make a table with each item's price per store, current sales, and the total including delivery fees. Note items you couldn't find. Tell me the cheapest single store and the cheapest split. Don't add anything to a cart โ€” stop there.

Fill in the [brackets]. Each prompt says when the AI should stop, so it doesn't wander off.

Agents people used for this: Grok Bot, Gemini, Alexa+.

Inspired by real examples collected at agentusecases.ai.

๐Ÿ“š 4 real stories of people doing this with AI agents

Collected at AgentUseCases.ai.

Tools for this

#1 ยท Our pick

Grok Bot

Best for: Chores that repeat โ€” done for you

The easiest AI helper for everyday people: show it a chore once โ€” a morning brief, checking a bill, watching for a refund โ€” and it keeps doing it while you're away, checking in only when it needs your OK. Works from the Grok app on your phone and computer (beta).

Visit Grok Bot โ†—
#2

ChatGPT

Best for: Widest feature set

OpenAI's assistant with the broadest feature set: voice, images, search and a large app ecosystem.

Visit ChatGPT โ†—
#3

Gemini

Best for: Google Workspace users

Google's assistant, woven into Gmail, Docs and Android. Strongest if you live in Google's apps.

Visit Gemini โ†—
#4

Claude

Best for: Writing, analysis, code

Anthropic's assistant: strong writing, analysis and coding, with projects and artifacts for longer work.

Visit Claude โ†—
#5

Grok

Best for: Real-time info, everywhere you go

xAI's assistant with real-time X data โ€” on iPhone, Android, desktop, the web, X, and built into Tesla cars. Want it to do chores on its own? See Grok Bot.

Visit Grok โ†—