Casino bonus codes are like lottery tickets—when they work, you feel like you’ve unlocked hidden value, but when they don’t, it’s just wasted time. With AI tools now able to generate text at scale, we wondered: could ChatGPT actually help us cut through the noise and uncover real, working bonus codes for online casinos in 2025?
To find out, we ran a week-long experiment with the help of casino expert Mark Taylor from Casino Whizz. We decided to stick to ten casinos. Dozens of prompts. Every single code tested in a live cashier. Here’s what happened.
Our Testing Setup
- Casinos tested: 10 U.S. and Canadian licensed sites, a mix of big names and mid-tier brands.
- Prompting: We tried three approaches:
- Direct requests (“What’s the bonus code for Casino X right now?”).
- Time-sensitive requests (“What bonus codes are valid in March 2025 for Casino Y?”).
- Indirect prompts (“List all deposit bonuses available at Casino Z with codes if required”).
- Validation: Every single code generated by ChatGPT was entered into the cashier. If it worked, we noted the bonus credited. If not, we documented the rejection message.
The Results at a Glance
Out of 34 unique codes generated by ChatGPT across 10 casinos:
- 7 codes (21%) worked and triggered a bonus.
- 12 codes (35%) were outdated (previously valid but expired).
- 15 codes (44%) were hallucinated (nonexistent).
That hit rate might not sound great—but it’s better than we expected going in. More importantly, the results varied significantly by casino.
Casino-by-Casino Breakdown
1. Caesars Online Casino (New Jersey)
- Codes generated: 5
- Working codes: 2
- Outcome: Surprisingly solid. One code matched the official “CZR1000” welcome offer (100% match up to $1,000), and another applied a smaller $25 free play bonus for existing users. Three others were outdated seasonal promos (“CAESARSXMAS,” “SPRINGSPINS”) that had expired.
- Verdict: Success rate: 40%. ChatGPT was decent here, probably because Caesars has a long history of public bonus codes.
2. BetMGM
- Codes generated: 4
- Working codes: 1
- Outcome: ChatGPT gave us four codes. Only “PLAYBONUS” still worked, which credited a $20 free play. The others (“MGMFREE100,” “BETMATCH”) were no longer valid.
- Verdict: 25% hit rate—better than nothing, but mostly expired.
3. DraftKings Casino
- Codes generated: 3
- Working codes: 0
- Outcome: DraftKings rarely uses bonus codes anymore, and ChatGPT failed across the board. It offered plausible but fake codes like “DK2025” and “KINGSPINS.” The cashier rejected them all.
- Verdict: 0%. AI couldn’t keep up with DK’s shift away from promo codes.
4. FanDuel Casino
- Codes generated: 2
- Working codes: 0
- Outcome: Similar to DraftKings, FanDuel has moved toward auto-applied promos. ChatGPT suggested “FD100” and “DUELSPINS,” neither of which existed.
- Verdict: Another 0%.
5. 888casino
- Codes generated: 5
- Working codes: 2
- Outcome: Mixed bag. “WELCOME888” worked for the 100% match bonus, and “SPINS10” gave us 10 free spins on slots. The other three were expired or completely fabricated.
- Verdict: 40% hit rate. Not bad—ChatGPT did better with established international operators.
6. PartyCasino
- Codes generated: 4
- Working codes: 1
- Outcome: “PARTY100” still worked for a 100% match. The other three (holiday promos) were rejected.
- Verdict: 25%.
7. Hard Rock Online Casino
- Codes generated: 3
- Working codes: 0
- Outcome: Every code was made up. The cashier flagged them as invalid immediately.
- Verdict: 0%.
8. BetRivers Casino
- Codes generated: 4
- Working codes: 1
- Outcome: ChatGPT correctly produced “250MATCH,” which worked for a first deposit bonus. Three others were outdated.
- Verdict: 25%.
9. Golden Nugget Online
- Codes generated: 2
- Working codes: 1
- Outcome: “NUGGET1000” worked for the welcome bonus. The other suggestion was fabricated.
- Verdict: 50%—highest success rate, though only two codes were tried.
10. Borgata Casino
- Codes generated: 2
- Working codes: 0
- Outcome: Both suggestions (“BORGSPINS” and “ATLANTIC25”) were fake.
- Verdict: 0%.
Patterns We Noticed
- Bigger brands with legacy codes (Caesars, 888, Golden Nugget) = higher success. ChatGPT’s training data clearly included old bonus code lists that still have some overlap with current offers.
- New-school sportsbooks (DraftKings, FanDuel) = total failure. These brands stopped using codes, so AI hallucinated them.
- Mid-tier brands (BetMGM, PartyCasino, BetRivers) = occasional wins. About 1 in 4 codes worked.
The Bigger Picture: Should You Bother With ChatGPT for Bonus Codes?
The experiment showed us one thing: ChatGPT can surface some valid codes, but it’s unreliable at best. A one-in-five hit rate isn’t terrible, but it’s nowhere near good enough for players who want certainty.
What ChatGPT can do well is:
- Explain how bonuses work.
- Compare wagering requirements across casinos.
- Warn players about “too good to be true” offers.
But for fresh, working codes, official casino promotions pages and reputable affiliates are still the only safe bet.
Final Verdict
So, did ChatGPT help us find valid bonus codes? Yes, but only 21% of the time.
It was surprisingly good at Caesars, 888, and Golden Nugget, but completely failed at DraftKings, FanDuel, Hard Rock, and Borgata. For a tool that feels futuristic, the reality is pretty old-fashioned: you’re still better off checking casino websites or trusted affiliates for accurate promotions.
If anything, this experiment revealed more about the future of online casinos than about ChatGPT itself. Operators are phasing out codes entirely, leaning toward automatic offers tied to your account. Soon enough, bonus codes may be as much a relic as paper slot vouchers.
