Benchmark

HealthBench Professional

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Welcome to September 27, 2026 (theinnermostloop.substack.com)
Source linked by the September 27 issue (x.com)

Health evaluation used to compare GPT-6 Luna with GPT-5.6 Sol.

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2026-09-27: GPT-6 Luna reportedly beats GPT-5.6 Sol on a health evaluation

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HealthBench Professional
Innermost Loop KB — secondary record
Reporting date: unknown
KB permalink: https://nicholsn.github.io/innermost-loop-kb/benchmarks/healthbench-professional
Attributed sources:
- Welcome to September 27, 2026 — https://theinnermostloop.substack.com/p/welcome-to-september-27-2026
- Source linked by the September 27 issue — https://x.com/thekaransinghal/status/2102829748846260434
This citation does not imply independent verification of linked-source claims.

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