General Capabilities Benchmark

HealthBench

HealthBench - healthcare-related benchmark evaluating medical knowledge and reasoning.

Category

General Capabilities

Score type

percent

Scale

relative

higher is better

Models tested

3

What is HealthBench?

HealthBench is an OpenAI benchmark with 5,000 realistic health conversations, written and graded with input from physicians. Models answer medical questions and the responses are scored on accuracy, completeness, context awareness and communication quality — including knowing when to refer to a professional.

What does it test?

HealthBench measures broad everyday usefulness across domains. In detail, it checks:

  • accurate medical knowledge in real dialogue situations
  • recognising emergencies and advising a doctor visit
  • tailoring answers to the patient's actual situation
  • clear communication instead of technical jargon

How to read the score

The score is accuracy: the percentage of tasks answered or solved correctly. 100% means every task was solved perfectly; higher is better.

Frequently asked questions

What is the HealthBench benchmark?

HealthBench is an OpenAI benchmark with 5,000 realistic health conversations, written and graded with input from physicians. Models answer medical questions and the responses are scored on accuracy, completeness, context awareness and communication quality — including knowing when to refer to a professional.

What does HealthBench test?

HealthBench mainly measures broad everyday usefulness across domains. Concretely, it checks: accurate medical knowledge in real dialogue situations; recognising emergencies and advising a doctor visit; tailoring answers to the patient's actual situation.

How is the HealthBench score calculated?

The score is accuracy: the percentage of tasks answered or solved correctly. 100% means every task was solved perfectly; higher is better.

Where do I get HealthBench data and scores?

The official benchmark page/reference is linked on this page. Every score on Open LLM Radar is also available as open data: download the scores JSON (http://open-llm-radar-api:8000/api/v1/benchmarks/healthbench/scores) or pull it directly from the Open LLM Radar API with any HTTP client.

Model scores 3 models tested

Reset
# Model Score Date Source Verified
1 Qwen3.8-2.4T-A95B
Qwen
60.2%
18.08.2026 Report Verified
2 GPT-OSS-120B
OpenAI
57.6%
08.08.2025 Report Verified
3 GPT-OSS-20B
OpenAI
42.5%
05.08.2025 Report Verified

What now?

You've seen how models score on HealthBench — here's what to do next.