How to Use AI to Save Money: 12 Practical Ideas to Try
Artificial intelligence isn’t just useful for writing emails or answering questions—it can also become your own personal money-saving assistant.
Tools such as ChatGPT can help you compare prices, find cheaper alternatives, plan meals, reduce waste and understand complicated bills. You don’t need to be particularly technical either. Simply explain what you need in everyday language and provide as much relevant information as possible.
Here are 12 practical ways you can use AI to help save money.
1. Find the lowest price for a product
Before buying something, ask AI to search for the lowest current price from reputable UK retailers.
Include the exact product name or model number, as similar-looking products can have very different specifications.
Example prompt:
“Find the lowest current UK price for [NAME OF PRODUCT]. Include delivery costs, whether the retailer is reputable and any available cashback.”
You can also ask it to compare a shortlist of retailers or check whether a cheaper product or a bundle offers better value than buying the product alone or with accessories.
Prices can change quickly, so always click through to the retailer and confirm the price before ordering.
2. Look for promotional and discount codes
AI can help search for promotional codes before you complete an online purchase.
Example prompt:
“Find any current and valid discount codes for [retailer]. Only include codes that have recently been confirmed as working, and tell me the terms and expiry date.”
Be aware that voucher websites often list old or account-specific codes. AI cannot guarantee that every code will work, so try the code at checkout without relying on the advertised saving.
3. Compare cashback options
A retailer may appear on more than one cashback platform, with different rates available on each. Ask AI to compare cashback websites, gift-card apps, retailer rewards and payment-card offers.
Example prompt:
“I’m planning to spend £300 at [retailer]. Compare the available cashback options and calculate how much I could earn through each one. Check for any important exclusions.”
Remember to read the cashback terms carefully. Some discount codes, delivery locations or product categories may not qualify.
4. Decide whether a special offer is genuinely good value
A large percentage discount doesn’t necessarily mean you have found the best deal. Sometimes the original price has been inflated, or another retailer is selling the same product for less without advertising a sale.
Example prompt:
“This product is on offer for £79.99, reduced from £129.99. Can you compare its current price elsewhere and tell me whether £79.99 is genuinely a good deal?”
You can also ask AI to compare the price with previous sale prices, although you should verify any price-history information using a reliable tracker.
5. Compare different versions and bundles
Retailers often sell several versions of the same product, making it difficult to know which one represents the best value. AI can create a straightforward comparison of features, accessories and prices.
Example prompt:
“Compare the Standard, Essentials and Deluxe versions of this product. Show me what is included with each bundle, what I would actually use and which offers the best value for a beginner.”
This can stop you paying extra for accessories or features you are unlikely to need.
6. Create a meal plan from food you already have
Tell AI what you have in your fridge, freezer and cupboards, and ask it to suggest meals using those ingredients.
Example prompt:
“I have chicken thighs, carrots, onions, peppers, rice, pasta, chopped tomatoes and a jar of curry sauce. Create a five-day family meal plan using these ingredients. Suggest only a few low-cost extras.”
You can add information about allergies, dislikes, portion sizes and how much time you have available. This is a brilliant way to reduce food waste and avoid an unnecessary trip to the supermarket.
7. Build a budget-friendly shopping list
Once you have a meal plan, ask AI to turn it into an organised shopping list.
Example prompt:
“Create a seven-day evening meal plan for a family of four with a shopping budget of £60. Use affordable UK supermarket ingredients, include two meat-free meals and combine ingredients to minimise waste.”
You can ask for the list to be organised by supermarket aisle, which makes shopping quicker and may help reduce impulse purchases.
Check the estimated prices, as AI may not have access to your supermarket’s latest local pricing.
8. Use leftovers more creatively
Not sure what to do with half a roast chicken, leftover vegetables or bananas that are becoming overripe? Ask AI for ideas before throwing anything away.
Example prompt:
“I have leftover cooked chicken, half a bag of spinach and two peppers that need using today. Suggest three simple family meals using these ingredients.”
You can also upload a photograph of the ingredients and ask for suggestions, although it helps to confirm exactly what each item is.
9. Find cheaper alternatives
If a product is outside your budget, ask AI to suggest alternatives with similar features.
Example prompt:
“I like this cordless vacuum cleaner, but it costs £350. Suggest three well-reviewed alternatives available in the UK for under £200. Compare their battery life, weight, warranty and replacement-part costs.”
This works for appliances, beauty products, technology, toys, subscriptions and many other purchases.
Be specific about the features you genuinely need so that you don’t receive unsuitable recommendations.
10. Review your bills and subscriptions
AI can help you understand bills, identify unusual increases and prepare questions to ask the provider. Remove personal information such as your name, address, account number and payment details before uploading anything.
Example prompt:
“This is a breakdown of my latest energy bill. Explain each charge in simple terms, highlight any increases and suggest questions I should ask my supplier.”
You could also type out a list of your subscriptions and ask AI to calculate the monthly and annual total. Seeing the annual cost can make it easier to decide what is worth keeping.
Example prompt:
“Here is a list of my monthly subscriptions. Calculate what each one costs per year, the total annual cost and how much I would save by cancelling the ones I use least.”
11. Plan a cheaper holiday or day out
AI can help you compare destinations, travel dates, accommodation options and free activities.
Example prompt:
“Plan a low-cost three-day family break in London. Include free attractions, inexpensive places to eat and accommodation areas with easy public transport. Show estimated costs.”
You can also ask it to compare travelling by car, train, ferry or plane. Travel prices and opening times change frequently, so confirm everything directly before booking. Never rely solely on an AI-generated timetable.
12. Work out whether a membership is worth it
Paid memberships can look attractive, but the saving depends on how often you actually use them. Ask AI to calculate the break-even point for supermarket delivery passes, warehouse memberships, travel cards, subscription services or annual attraction passes.
Example prompt:
“This membership costs £60 per year and gives me 10% off. How much would I need to spend before the membership pays for itself?”
You can make the calculation more realistic by adding joining fees, delivery charges, exclusions and any benefits you know you will use.
Get better answers by giving AI more detail
The quality of the answer usually depends on the information you provide.
Instead of asking:
“Find me a cheap printer.”
Try:
“Find a colour printer available from a reputable UK retailer for under £150. It will mainly be used for stickers and craft projects, so print quality matters more than speed. Include the ongoing cost of ink and delivery.”
Useful details might include:
Your maximum budget
Your location
The exact product or model
Essential features
Delivery requirements
The number of people you are feeding
Ingredients you already own
Dietary needs
Retailers you prefer or want to avoid
Important: always double-check before spending
AI can save you a lot of research time, but it can occasionally provide outdated or incorrect information.
Before buying or booking anything:
Confirm the price on the retailer’s website.
Check delivery charges and location restrictions.
Read the returns policy.
Check the exact product model.
Test promotional codes at checkout.
Read cashback terms and exclusions.
Confirm travel times and availability directly.
Never share passwords, complete card details or sensitive account information.
Think of AI as a helpful research assistant rather than a guarantee that every recommendation will be correct.
Final thoughts
One of the best things about using AI is that you can continue asking questions until you have the information you need.
You could ask it to find a product, compare the options, calculate the total cost, search for a discount and suggest the best cashback route, all before you place your order.
Used carefully, AI can help you make more informed decisions, avoid unnecessary spending and find savings you might otherwise have missed.
Have you used AI to save money? I’d love to hear your best tips and successes!
Happy Saving with AI!
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