{"data":{"id":"aa9c37e5-b79c-4a0f-a3e6-909163bfceb2","title":"Improving health intelligence in ChatGPT","summary":"ChatGPT has improved its ability to help with health questions through a new model called GPT-5.5 Instant, which better recognizes when urgent care is needed, explains uncertainty honestly, and provides clearer information. The improvements were measured using physician-led evaluations (HealthBench, a set of tests that assess health response quality) and real-world usage data, showing a 71% reduction in factuality issues over two months. GPT-5.5 Instant is available free to all ChatGPT users and performs similarly to OpenAI's most advanced models on health-related tasks.","solution":"N/A -- no mitigation discussed in source.","labels":["safety","research"],"sourceUrl":"https://openai.com/index/improving-health-intelligence-in-chatgpt","publishedAt":"2026-06-18T11:00:00.000Z","cveId":null,"cweIds":null,"cvssScore":null,"cvssSeverity":null,"severity":"info","attackType":[],"issueType":"news","affectedPackages":null,"affectedVendors":["OpenAI"],"affectedVendorsRaw":["OpenAI","ChatGPT","GPT-5.5 Instant","GPT-5.3 Instant","GPT-5.4 Thinking","GPT-5.5 Thinking"],"classifierModel":"claude-haiku-4-5-20251001","classifierPromptVersion":"v3","cvssVector":null,"attackVector":null,"attackComplexity":null,"privilegesRequired":null,"userInteraction":null,"exploitMaturity":null,"epssScore":null,"patchAvailable":null,"disclosureDate":"2026-06-18T11:00:00.000Z","capecIds":null,"crossRefCount":0,"attackSophistication":"moderate","impactType":["safety"],"aiComponentTargeted":"model","llmSpecific":true,"classifierConfidence":0.85,"researchCategory":null,"atlasIds":null}}