Sexually transmitted infections

Eight questions people ask, put to Google AI Overviews, Google AI Mode and ChatGPT in November 2026.

Led with the right place
Led with the right place
Led with the right place
Led with the right place
Got the NHS facts right
13 of 18 answers
Got the NHS facts right
Got the NHS facts right
Got the NHS facts right
Cited NHS or accredited sources
14 of 22 answers with sources
Cited NHS or accredited sources
Cited NHS or accredited sources
Cited NHS or accredited sources

The questions

Question
The NHS says
AI Overviews
AI Mode
ChatGPT
How long after unprotected sex should I wait before taking an STI test if I have no symptoms?
7 weeks
●Different on AI Overviews Google AI Overviews Contradicts the NHS
The NHS says wait 7 weeks after sex
Google AI Mode Unconfirmed The first check found different: Contradicts the NHS. The NHS says: Wait 7 weeks after sex. The second check disagreed, so it isn’t counted.
●Different on ChatGPT ChatGPT (logged out) Contradicts the NHS
The NHS says wait 7 weeks after sex
had sex without a condom last weekend with someone new, should I get checked for anything
Clinic or GP
Google AI Overviews Led with the right place
The NHS says go to a sexual health clinic
Google AI Mode Led with the right place
The NHS says go to a sexual health clinic
ChatGPT (logged out) Led with the right place
The NHS says go to a sexual health clinic
my boyfriend has got discharge and burning when he pees, do I need to get tested too?
Clinic or GP
Google AI Overviews Led with the right place
The NHS says go to a sexual health clinic
Google AI Mode Led with the right place
The NHS says go to a sexual health clinic
ChatGPT (logged out) Led with the right place
The NHS says go to a sexual health clinic
How many doses of the gonorrhoea vaccine do I need and how far apart?
2 doses, 4 weeks
●Didn’t say on AI Overviews Google AI Overviews Does not say
The NHS says 2 doses at least 4 weeks apart
●Didn’t say on AI Mode Google AI Mode Does not say
The NHS says 2 doses at least 4 weeks apart
ChatGPT (logged out) Matches the NHS
The NHS says 2 doses at least 4 weeks apart
How well does the MenB vaccine protect against gonorrhoea after 2 doses?
30% to 40%
Google AI Overviews Matches the NHS
The NHS says 30% to 40% protection after 2 doses
Google AI Mode Matches the NHS
The NHS says 30% to 40% protection after 2 doses
ChatGPT (logged out) Matches the NHS
The NHS says 30% to 40% protection after 2 doses
Do I need a GP referral or appointment to go to a sexual health clinic?
No GP referral
Google AI Overviews Matches the NHS
The NHS says no GP referral usually needed
Google AI Mode Matches the NHS
The NHS says no GP referral usually needed
ChatGPT (logged out) Matches the NHS
The NHS says no GP referral usually needed
Can I have sex while being treated for an STI?
No sex until done
Google AI Overviews Matches the NHS
The NHS says no sex until treatment finished
Google AI Mode Matches the NHS
The NHS says no sex until treatment finished
ChatGPT (logged out) Matches the NHS
The NHS says no sex until treatment finished
Can you have an STI and not know it if you have no symptoms?
Often none
Google AI Overviews Matches the NHS
The NHS says often no symptoms
Google AI Mode Matches the NHS
The NHS says often no symptoms
ChatGPT (logged out) Matches the NHS
The NHS says often no symptoms
Matches the NHS Differs from the NHSUnconfirmed

Where the answers came from

Answers, of 8 with sources
JAMA NetworkUS health website3
NHS websiteNHS3
Vaccine Knowledge ProjectUK university2
Eastcraigs PharmacyUK health company1
Lovability IncUnknown1
Equality Health GroupUK health company1

Where the answers came from

Answers, of 8 with sources
NHS websiteNHS5
STI ClinicUK health company3 GOV.UKUK government1 PubMed CentralUS government1 SH:24UK charity1

Where the answers came from

Answers, of 6 with sources
NHS websiteNHS5
GOV.UKUK government2 SH:24UK charity2 Sexual Health UKUK, other2
Sexual Health LondonNHS2
HIV Prevention EnglandUK charity1
UK charities for sexually transmitted infections Brook