Can AI do my grocery shopping for me?
Not on its own. A chat app can't log into your store account and pay. It can write your list, sorted by aisle, and plan meals around sales you paste in, which is most of the work.
01Why nah
- Ordering needs your account and payment, which AI chat apps don't have.
- Some AI browser agents can fill a cart, but you should review and pay yourself.
- The planning part (list, quantities, swaps) is where AI shines.
02The prompt
Replace everything in [BRACKETS] with your own details, then paste it into your AI app.
You are a meal planner and grocery organizer. Meals for the week or what I need: [LIST] People eating: [NUMBER] This week's sales (paste the flyer if you have it): [SALES] My store's sections: [OR 'standard'] Your task: build my grocery list. Rules: - MUST group items by store section with quantities. - MUST suggest swaps that use items on sale. - NEVER add items I don't need for my meals. Give me: the list by section and 3 money-saving swaps.
03Steps
- List your meals.
- Run the prompt, then paste the list into your store's app.
- Check out and pay yourself.
04What can go wrong
- Don't give AI tools your payment details.
- Check quantities against what's already in your fridge.
05What to use
06Our test runs
2 runs, each with a different made-up sample. 0 of 2 passed every check.
The made-up sample:
[LIST]Monday: Spaghetti Bolognese; Tuesday: Chicken stir‑fry with rice; Wednesday: Beef tacos; Thursday: Grilled salmon with quinoa; Friday: Veggie pizza; Saturday: Homemade chili; Sunday: Roast chicken with potatoes and carrots.[NUMBER]4[SALES]Weekly Savings at FreshMart (Oct 1‑7): Ground beef 1 lb $3.99 (was $5.49); Chicken thighs 2 lb $4.99; Salmon fillets 1 lb $6.99; Fresh broccoli $1.29 per bunch; Quinoa 1 lb $2.49; Pasta sauce $1.99; Cheddar cheese $2.49 per block; Pizza dough $1.79.[OR 'standard']Store sections: Produce, Meat & Seafood, Dairy, Bakery, Pantry, Frozen, Bulk
- Group items by store section with quantities
- Suggest swaps that use items on sale
- Never add items I don't need for my meals
- Provide the list by section and 3 money-saving swaps
- Made up details we never gave it
Details it made up: “Broccoli (1 bunch)”, “Carrots (1 bunch)”, “Potatoes (2-3)”, “Lettuce (1 head)”, “Tomatoes (1 pint)”
What came back (excerpt):
- Pasta (1 box) - Pasta sauce (1-2 jars) - Quinoa (1 lb) - Canned tomatoes (1-2 cans) - Taco seasoning (1 packet) - Olive oil (1 bottle) * Bakery: - Pizza dough (1-2) * Frozen: - None As for money-saving swaps, here are three suggestions: 1.
Read the full answer
Based on your meal plan, here is your grocery list grouped by store section with quantities: * Produce: - Broccoli (1 bunch) - Carrots (1 bunch) - Potatoes (2-3) - Lettuce (1 head) - Tomatoes (1 pint) - Onions (1-2) - Bell peppers (2) * Meat & Seafood: - Ground beef (1 lb) - Chicken thighs (2 lbs) - Salmon fillets (1 lb) * Dairy: - Cheddar cheese (1 block) * Pantry: - Pasta (1 box) - Pasta sauce (1-2 jars) - Quinoa (1 lb) - Canned tomatoes (1-2 cans) - Taco seasoning (1 packet) - Olive oil (1 bottle) * Bakery: - Pizza dough (1-2) * Frozen: - None As for money-saving swaps, here are three suggestions: 1. Swap regular ground beef with the sale ground beef ($3.99/lb) for the Spaghetti Bolognese and Beef tacos. 2. Use the sale chicken thighs ($4.99/2 lbs) for the Chicken stir-fry and Roast chicken, instead of buying separate chicken breasts. 3. Consider using the sale quinoa ($2.49/lb) as a side dish for the Roast chicken with potatoes and carrots, in addition to the Grilled salmon, to reduce the overall cost of the meal plan.
Watch for added items not required by the meal plan.
The made-up sample (a messier one):
[LIST]Mon: chicken stir‑fry (chicken, broccoli, rice). Tue: tacos (ground beef, tortillas, lettuce, cheese). Wed: baked salmon, quinoa, asparagus. Thu: veggie pasta (pasta, marinara, spinach). Fri: homemade pizza (pepperoni, mushrooms, cheese). Sat: brunch pancakes, bacon, fruit. Sun: roast pork, mashed potatoes, green beans.[NUMBER]4[SALES]Weekly Savings Flyer: - Chicken breasts 2 lb pack – $5.99 (Was $7.99) - Ground beef 1 lb – $3.49 (Was $4.79) - Fresh broccoli crowns – $1.29/lb (Was $1.99) - Tortilla chips 12‑oz bag – $2.19 (Buy 1 Get 1 50% off) - Marinara sauce 24‑oz – $1.79 (Was $2.49) - Mozzarella cheese 16‑oz – $3.99 (Was $5.49) - Pork shoulder 4‑lb – $9.99 (Was $12.99) - Quinoa 1‑lb – $4.49 (Was $5.99) - Fresh asparagus bunch – $2.49 (Was $3.99) - Frozen mixed berries 12‑oz – $3.29 (Was $4.49) - Whole wheat pizza dough – $2.99 (Was $4.29) - Bacon 1‑lb – $4.59 (Was $6.49) - Pancake mix 32‑oz – $2.79 (Was $3.99) - Apple juice 64‑oz – $2.49 (Buy 2 for $4.00)[OR 'standard']Produce, Meat & Seafood, Dairy, Bakery, Canned Goods, Frozen, Bulk, Dry Goods, Snacks, Beverages, Household
- Group items by store section with quantities
- Suggest three swaps that use sale items
- Never add items not needed for meals
- Provide list by section and three money‑saving swaps
- Made up details we never gave it
Details it made up: “Broccoli (2 crowns)”, “Lettuce (1 head)”, “Asparagus (1 bunch)”, “Green beans (1 bunch)”, “Fresh fruit (for Sat brunch)”
What came back (excerpt):
ck) + Whole wheat pizza dough (1) * Canned Goods: + Marinara sauce (1, 24-oz) * Snacks: + None needed * Beverages: + None needed (but you may want to consider the apple juice sale) And here are 3 money-saving swaps that use items on sale: 1.
Read the full answer
Here is your grocery list grouped by store section with quantities: * Produce: + Broccoli (2 crowns) + Lettuce (1 head) + Asparagus (1 bunch) + Green beans (1 bunch) + Fresh fruit (for Sat brunch) * Meat & Seafood: + Chicken breasts (2 lbs) + Ground beef (1 lb) + Salmon (4 fillets) + Pork shoulder (4 lbs) + Pepperoni (1 pack) + Bacon (1 lb) * Dairy: + Cheese (1 block, for tacos and pizza) + Mozzarella cheese (1, 16-oz) * Dry Goods: + Rice (2 lbs) + Quinoa (1 lb) + Pasta (1 box) + Tortillas (1 pack) + Whole wheat pizza dough (1) * Canned Goods: + Marinara sauce (1, 24-oz) * Snacks: + None needed * Beverages: + None needed (but you may want to consider the apple juice sale) And here are 3 money-saving swaps that use items on sale: 1. Swap regular cheese with Mozzarella cheese for the tacos, as it's on sale for $3.99 (Was $5.49). This will save you $1.50. 2. Consider using the sale price on chicken breasts ($5.99 for 2 lbs) and plan an extra chicken-based meal for next week, or freeze some for later use. 3. Use the Whole wheat pizza dough ($2.99, Was $4.29) for your homemade pizza on Fri, and save $1.30 compared to buying a more expensive dough or making your own from scratch.
Verify that every required item includes a quantity and is placed in the correct store section.
How each run works: we fill the prompt with a made-up sample, run it once in Llama 3.3 70B, and GPT-OSS 120B grades the answer against the prompt's own rules. Word limits are counted by code, and every quote flagged as made up is checked against the full answer. Your results can differ. How we test.