Ask ChatGPT, Gemini and Claude for Prime Day tech picks, and check the discounts they claim

Posted

Jun 23, 2026 by Graham Barlow (TechRadar)

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Last checked

Oct 17, 2026

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Method:

How we verify

Evidence: Article or interviewA newsletter, journalist or interview account of what happened.

Context: In a comparison test: from a head-to-head chatbot review, not a standalone agent test.

Outcome

A TechRadar editor asked ChatGPT, Gemini and Claude what discounted tech to buy on Prime Day. Gemini focused on deals but overstated one: it said Sony WH-1000XM5 headphones were 50% off when they were actually 20% off at $198 (was $248). ChatGPT tailored picks to his interests from past chats but was less tuned in to actual discounts, and Claude, which knew least about him, gave fairly generic deals.

Agent

ChatGPT, Gemini, Claude

The source didn't share its exact prompt, so we wrote this from what it describes.

Before you start, ask me 1–3 short questions about anything important that's missing below. Keep them quick. Then do the task, checking in with me at the key points.

Goal: Suggest sale tech that fits how I actually live, and verify every discount before I buy.

What I can give you (ask for whatever's missing):
- What I use and need (work, hobbies, devices I own)
- Budget
- Store and country

Rules:
- Only suggest things that fit what I told you.
- For each pick, open the live listing and give the current price, the previous price and the real percentage off.
- Flag if a 'deal' isn't actually discounted in my country.
- Don't add anything to a cart or buy.
- If a site asks for a login, a CAPTCHA or payment details, stop and hand control back to me.
- Ask for my OK before you pay, book, send, submit or cancel anything.
- Check facts that can change (prices, opening hours, dates, availability, rules) against the official source, and tell me anything you couldn't verify.

Output: A short list: item, why it fits me, verified current price, real discount, link.

You'll know it worked when: every price and discount in the list matches the live store page.

Before you start, ask me 1–3 short questions about anything important that's missing below. Keep them quick. Then do the task, checking in with me at the key points.

Goal: Suggest sale tech that fits how I actually live, and verify every discount before I buy.

What I can give you (ask for whatever's missing):
- What I use and need (work, hobbies, devices I own)
- Budget
- Store and country

Rules:
- Only suggest things that fit what I told you.
- For each pick, open the live listing and give the current price, the previous price and the real percentage off.
- Flag if a 'deal' isn't actually discounted in my country.
- Don't add anything to a cart or buy.
- If a site asks for a login, a CAPTCHA or payment details, stop and hand control back to me.
- Ask for my OK before you pay, book, send, submit or cancel anything.
- Check facts that can change (prices, opening hours, dates, availability, rules) against the official source, and tell me anything you couldn't verify.
- Re-check each price on the store page right before I buy; sale prices change during the event.

Output: A short list: item, why it fits me, verified current price, real discount, link.

You'll know it worked when: every price and discount in the list matches the live store page.

Before you finish: re-read my goal and constraints, check your answer against each one, and list anything you assumed or couldn't confirm.

Source

https://www.techradar.com/ai-platforms-assistants/i-asked-chatgpt-gemini-and-claude-what-discount-tech-to-buy-on-amazon-prime-day-heres-which-ai-gave-the-best-advice