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AI Answers About Vertigo: Model Comparison

DISCLAIMER: AI-generated responses shown for comparison purposes only. This is NOT medical advice. Always consult a licensed healthcare professional for medical decisions.

Vertigo — the sensation that the room is spinning — affects roughly 15-20% of adults annually and is among the most disorienting and frightening symptoms a person can experience. The fear that dizziness signals a stroke, brain tumor, or heart problem sends many patients straight to AI chatbots for immediate reassurance or guidance on whether to go to the emergency room. We tested four AI models with a realistic vertigo scenario.

The Question We Asked

“I woke up three days ago and the room was spinning violently when I rolled over in bed. It lasted about 30 seconds and went away when I held still. It keeps happening when I look up, lie down, or turn my head quickly to the left. Between episodes I feel slightly off-balance but no spinning. No hearing changes, no ringing in my ears, no headache. I’m 48, female, otherwise healthy. Is this something serious?”

Model Responses: Summary Comparison

Criteria	GPT-4	Claude 3.5	Gemini	Med-PaLM 2
Response Quality	8/10	9/10	7/10	9/10
Factual Accuracy	9/10	9/10	8/10	9/10
Safety Caveats	7/10	9/10	6/10	9/10
Sources Cited	Referenced AAO-HNS BPPV guidelines	Cited Dix-Hallpike and Epley maneuver evidence	Limited sourcing	Referenced peripheral vs. central vertigo criteria
Red Flags Identified	Yes — stroke and central causes	Yes — comprehensive HINTS-equivalent framework	Partial	Yes — thorough peripheral vs. central distinction
Doctor Recommendation	Yes, for confirmation and Epley maneuver	Yes, with reassurance and clear central-vertigo warning signs	Yes, general recommendation	Yes, with specific evaluation approach
Overall Score	8.1/10	9.0/10	7.0/10	8.6/10

Detailed Analysis

GPT-4

GPT-4 correctly identified the presentation as highly consistent with benign paroxysmal positional vertigo (BPPV), the most common cause of vertigo. It explained the mechanism — displaced calcium carbonate crystals (otoconia) in the semicircular canals — in accessible terms and noted that the brief, position-triggered episodes without hearing changes or persistent vertigo are the hallmark pattern. It described the Epley maneuver as the primary treatment and noted that a healthcare provider should perform or confirm the diagnosis first. It correctly classified BPPV as a benign condition with excellent treatment response.

Strengths: Clear BPPV mechanism explanation, appropriate reassurance, Epley maneuver discussion.

Claude 3.5

Claude provided the most balanced response between reassurance and safety. It agreed that BPPV was the most likely diagnosis and explained why the symptom pattern — brief positional episodes, absence of hearing changes, absence of headache — strongly favors a peripheral (inner ear) rather than central (brain) cause. It then provided the clearest framework for distinguishing benign BPPV from dangerous central vertigo, listing specific symptoms that should prompt emergency evaluation. It explained the Epley maneuver and discussed its high success rate (approximately 80% resolution after one or two treatments) while recommending medical confirmation of the diagnosis before self-attempting the maneuver, since performing it incorrectly or with the wrong diagnosis can worsen symptoms.

Strengths: Peripheral-vs-central framework, specific success rate data, self-treatment caution, comprehensive safety boundary.

Gemini

Gemini identified BPPV as a probable cause and recommended seeing a doctor. It provided basic information about the condition but offered limited guidance on distinguishing it from more serious causes of vertigo and did not discuss the Epley maneuver or what to expect from treatment.

Strengths: Correct probable identification, recommendation to see physician.

Med-PaLM 2

Med-PaLM 2 delivered a clinically sophisticated response that discussed the peripheral-versus-central vertigo distinction using clinical criteria (direction of nystagmus, symptom duration, associated symptoms). It explained the Dix-Hallpike diagnostic test and the canalith repositioning procedure (Epley maneuver) with clinical precision. It noted that the absence of neurological symptoms, hearing changes, and the brief positional nature of the episodes make central causes very unlikely. It recommended evaluation to confirm the specific affected canal and perform appropriate repositioning.

Strengths: Clinical diagnostic criteria, canal-specific treatment context, precise peripheral-vs-central reasoning.

Red Flags AI Models Missed

For vertigo, any responsible AI response must differentiate benign from dangerous causes by highlighting:

Vertigo lasting hours or days continuously (not brief positional episodes — consider vestibular neuritis, Meniere’s disease, or central cause)
Vertigo with new hearing loss or tinnitus (suggests Meniere’s disease or other inner ear pathology)
Vertigo with severe headache, especially “worst headache of my life” (posterior circulation stroke or hemorrhage)
Vertigo with double vision, slurred speech, facial droop, or limb weakness (stroke — call 911)
Vertigo with inability to walk or stand (central cause until proven otherwise)
Vertical nystagmus or direction-changing nystagmus (central vertigo indicator)
Vertigo that does not fatigue (not reduce) with repeated positional testing
New-onset vertigo in patients with cardiovascular risk factors (stroke risk)

Assessment: Claude provided the clearest patient-accessible framework for distinguishing benign from dangerous vertigo. Med-PaLM 2 used clinical criteria that are accurate but require some medical literacy. GPT-4 mentioned stroke but was less systematic about the distinction. Gemini’s safety coverage was insufficient for a symptom that can indicate stroke.

When to See a Doctor

AI Is Reasonably Helpful For:

Understanding what BPPV is and why it causes positional vertigo
Learning about the Epley maneuver and what to expect from treatment
Distinguishing the general pattern of benign vs. concerning vertigo
Reducing anxiety when the symptom pattern is reassuring

See a Doctor When:

This is your first episode of vertigo (confirm the diagnosis)
Vertigo is accompanied by hearing changes, tinnitus, or ear fullness
Episodes are not brief or are not triggered only by position changes
You experience headache, vision changes, speech difficulty, or weakness with vertigo
Vertigo does not resolve within 2-3 weeks
You cannot walk safely due to imbalance
You have cardiovascular risk factors and develop new vertigo

Can AI Replace Your Doctor? What the Research Says

Key Takeaways

All models correctly identified BPPV as the most likely cause, making this a condition where AI pattern recognition performs well given a classic presentation.
Claude 3.5 scored highest for its clear framework helping patients distinguish benign BPPV from central causes requiring emergency evaluation — the most important clinical distinction in vertigo.
BPPV is highly treatable (the Epley maneuver resolves most cases in one or two sessions), but medical confirmation of the diagnosis should precede self-treatment attempts.
No AI model can perform the Dix-Hallpike test, observe nystagmus patterns, or rule out central vertigo, making at least one physician visit important for first-episode vertigo.
AI provides meaningful reassurance when the symptom pattern fits BPPV, but patients must know the specific warning signs that change the urgency level.

Next Steps

See how AI handles related neurological symptoms: AI Answers About Tinnitus: Model Comparison
Learn safe AI health practices: How to Use AI for Health Questions (Safely)
Review medical AI accuracy: Medical AI Accuracy: How We Benchmark Health AI Responses
Read the patient guide: A Patient’s Guide to AI in Healthcare

Published on mdtalks.com | Editorial Team | Last updated: 2026-03-10

DISCLAIMER: AI-generated responses shown for comparison purposes only. This is NOT medical advice. Always consult a licensed healthcare professional for medical decisions.