C
#1 pick1. GPT series (OpenAI)
The world's most popular AI chatbot.
OpenAI's GPT-6 Astra tops Artificial Analysis's length-adjusted HealthBench Professional table, and GPT models fill the benchmark's score-versus-cost frontier.
Ranking
Best AI Models for Medicine, Ranked
Medical AI finally has a serious public yardstick: OpenAI's HealthBench grades model replies to realistic health conversations against rubrics written by physicians, and HealthBench Professional does the same for 525 harder, clinician-grade cases. This ranking follows those results as compiled by Artificial Analysis in October 2026. Important: benchmark skill is not clinical approval — nothing here is medical advice, and no chatbot replaces a clinician.
🏆 The ranking
8 toolsC
2. Claude (Anthropic)
Anthropic's thoughtful AI assistant for writing, coding, and reasoning.
Claude Opus earned the highest raw HealthBench Professional score in Artificial Analysis's run; the length adjustment moves it down the table, not out of it.
G
3. Gemini (Google)
Google's AI assistant woven into Search, Gmail, and Android.
Gemini sits in the upper tier of HealthBench compilations and brings the strongest multimodal story — images and scans alongside text.
G
4. Grok (xAI)
xAI's witty AI assistant
Mid-table on HealthBench Professional in published runs — capable on medical questions, with a thinner healthcare-specific track record than the three above.
Q
5. Qwen (Alibaba)
Alibaba's capable AI chat assistant
The open-weight route: hospitals and researchers can self-host Qwen for clinical pilots without patient data leaving their own infrastructure.
P
6. Perplexity
An AI search engine that answers with cited sources.
Not a model but the search-first way many people check a medical fact — every answer arrives with citations you can open and verify.
L
7. Le Chat (Mistral AI)
Mistral's fast AI assistant
Europe's frontier chat assistant. A reasonable medical generalist, though Mistral publishes fewer health-benchmark results than the leaders.
P
8. Poe
One app to chat with many of the best AI models.
One subscription hosting many frontier models — a practical way to cross-check an important health answer against a second model's reply.
Sources & method
Ranking basis: HealthBench and HealthBench Professional (OpenAI), as compiled by Artificial Analysis. Order reflects the published HealthBench-family results as of the check date, including Artificial Analysis's length-adjusted HealthBench Professional table. We publish ranks, not scores. Data checked October 2026. Rankings are editorial, ordered from the public sources named here; Tools Hub does not accept paid placements on this list.
More rankings
❓ Questions, answered
What is HealthBench?
An OpenAI benchmark (2025) that grades AI replies to 5,000 realistic health conversations against rubrics written by 262 physicians. Its harder sibling, HealthBench Professional, uses 525 clinician-selected conversations. Scores are the share of rubric points earned — a measure of answer quality and safety habits, not a medical licence.
Which AI is best for medical questions?
On the HealthBench family's published results, OpenAI's GPT models lead, with Anthropic's Claude and Google's Gemini close behind. All three handle everyday health information well; none is a substitute for professional diagnosis or treatment.
Can I trust a chatbot with a medical question?
Use it for understanding, not deciding. Benchmarks show the best models answer common health questions well, but they still make confident mistakes. Check anything consequential with a clinician or a cited source — which is why citation-first tools like Perplexity appear on this list.