Compare prescription prices across GoodRx, Cost Plus Drugs and your insurance
Before your next refill, have AI build a checklist and comparison table so you pick the cheapest legitimate way to fill it.
Part of: How to lower your prescription drug costs
1. Copy this prompt
Paste it into ChatGPT, Claude, Gemini or Grok (the free versions work), then replace the [highlighted brackets] with your details. Leave out account numbers and SSNs.
I take [DRUG NAME] [DOSE], [QUANTITY] per [30/90] days. My insurance copay is $[X] (or I'm uninsured). Prices I found: GoodRx at [PHARMACY]: $[Y]; Cost Plus Drugs: $[Z] plus shipping; other: [ANY]. 1) Build a per-month cost table. 2) Tell me whether paying cash outside insurance would still count toward my deductible (and what to ask my insurer). 3) List questions for my pharmacist or doctor about generics, alternative strengths or a 90-day supply. Don't invent prices; work only with the ones I gave you.
2. Follow these steps
(stored only in your browser; uncheck to erase)
What to expect, and what to do if they say no
What happened when people tried it
- We haven't verified a real-world example for this one yet, so it's a tool guide plus a prompt. Tried it? Tell us what happened (link below).
Why this works
The problem: The same prescription can cost very different amounts depending on the pharmacy, insurance, discount cards or mail order.
How AI helps: AI can tell you what to compare (insurance copay, discount-card price, mail-order cash price, 90-day supply, generics) and help you fill in a table from the official sites.
Tools & what they cost
| Tool | Cost |
|---|---|
| ChatGPT | Free option available (Paid upgrades exist, but the free version works for this) Free tier; paid plans available |
| Claude | Free option available (Paid upgrades exist, but the free version works for this) Free tier; paid plans available |
| GoodRx Discount prices at local pharmacies | Free option available (Paid upgrades exist, but the free version works for this) Free coupons; paid Gold membership available |
| Mark Cuban Cost Plus Drug Company Mail-order pharmacy with published markup | Costs money: Varies by drug; shown before checkout (You pay a set price or subscription) Pay per prescription |
What do these labels mean?
- Free No cost at all.
- Free option available Paid upgrades exist, but the free version works for this.
- Costs money You pay a set price or subscription.
- Takes a cut of savings Charges a percentage of what it saves you.
- Time · Difficulty Our estimates for a typical first try, not guarantees.
- Reported What the linked source says happened, often self-reported. Your results will vary.
Watch out for
- No verified AI-specific success story yet. This is a how-to guide built on official sources.
- Discount-card cash prices usually don't count toward your insurance deductible unless your insurer says so.
- Never change a dose or switch drugs without your prescriber's OK.
- Prices change often; recheck before each refill.
Was this helpful?
Tried it? Tell us what happened, good or bad. We read every reply and may share success stories (only with your OK).
Sources
Last verified 2026-10-19. Not financial, legal, tax or medical advice. Disclaimer.