RankingHealthBench Professional (length-adjusted) · not specified

HealthBench Professional (length-adjusted) · not specified

Data updated 12 Sept 2026

Bucket
Supporting evidence
Unit
percent
Direction
Higher is better
Version
not specified
Display harness
GPT-6 Astra: A new generation of intelligence
Board
https://openai.com/index/gpt-6-astra/

The available records have no admitted matched comparison in the capability core. Raw results remain available below.

Compare published benchmark results with category weights →

Models

ModelScoreHarnessEvidenceSource-recorded date
GPT-6 AstraOpenAI63.4%
Reported settings & source

Maximum reported across reasoning efforts; OpenAI research environment or API; official paper scoring; length-adjusted

Provider-published result; comparator measurements are not automatically independently reproduced.

GPT-6 Astra: A new generation of intelligence · Science And Health table / HealthBench Professional (length-adjusted) / GPT‑6 Astra · reviewed 2026-09-06

GPT-6 Astra: A new generation of intelligencelab self-report2026-09-06
GPT-5.6 SolOpenAI60.5%
Reported settings & source

Maximum reported across reasoning efforts; OpenAI research environment or API; official paper scoring; length-adjusted

Provider-published result; comparator measurements are not automatically independently reproduced.

GPT-6 Astra: A new generation of intelligence · Science And Health table / HealthBench Professional (length-adjusted) / GPT‑5.6 Sol · reviewed 2026-09-06

GPT-6 Astra: A new generation of intelligencelab self-report2026-09-06
Gemini 3.8 FlashGoogle52.1%
Reported settings & source

Maximum reported across reasoning efforts; OpenAI research environment or API; official paper scoring; length-adjusted

Provider-published result; comparator measurements are not automatically independently reproduced.

GPT-6 Astra: A new generation of intelligence · Science And Health table / HealthBench Professional (length-adjusted) / Gemini 3.8 Flash · reviewed 2026-09-06

GPT-6 Astra: A new generation of intelligencelab self-report2026-09-06
Claude Fable 5Anthropic60.9%
Reported settings & source

Maximum reported across reasoning efforts; OpenAI research environment or API; official paper scoring; length-adjusted; OpenAI reproduction; GPT-5.4 grader; unclipped

Provider-published result; comparator measurements are not automatically independently reproduced.

GPT-6 Astra: A new generation of intelligence · Science And Health table / HealthBench Professional (length-adjusted) / Claude Fable 5 · reviewed 2026-09-06

GPT-6 Astra: A new generation of intelligencelab self-report2026-09-06
Claude Fable 5.1Anthropic58.1%
Reported settings & source

Maximum reported across reasoning efforts; OpenAI research environment or API; official paper scoring; length-adjusted; OpenAI reproduction; GPT-5.4 grader; unclipped; Opus5 fallback for provider refusals

Provider-published result; comparator measurements are not automatically independently reproduced.

GPT-6 Astra: A new generation of intelligence · Science And Health table / HealthBench Professional (length-adjusted) / Claude Fable 5.1 · reviewed 2026-09-06

GPT-6 Astra: A new generation of intelligencelab self-report2026-09-06
Claude Opus 5Anthropic56.4%
Reported settings & source

Maximum reported across reasoning efforts; OpenAI research environment or API; official paper scoring; length-adjusted; OpenAI reproduction; GPT-5.4 grader; unclipped

Provider-published result; comparator measurements are not automatically independently reproduced.

GPT-6 Astra: A new generation of intelligence · Science And Health table / HealthBench Professional (length-adjusted) / Claude Opus 5 · reviewed 2026-09-06

GPT-6 Astra: A new generation of intelligencelab self-report2026-09-06