GPT-6 Sol on HealthBench Professional
rank 9 of 31 · updated September 30, 2026
GPT-6 Sol scores 0.608 on HealthBench Professional, rank 9 of 31 models on the board. HealthBench Professional scores models on 525 tasks drawn from real clinician conversations, graded criterion by criterion against physician-written rubrics on a 0 to 1 scale.
Result and API facts
| rank | 9 of 31 |
|---|---|
| score | 0.608 |
| lab | OpenAI |
| context window | 1.05M tokens |
| API price per 1M tokens | $2.00 in / $10.00 out |
| license | proprietary |
| source | GPT-6 Astra System Card - HealthBench (Deployment Safety Hub) (system card) |
| released | 2026-09-22 |
Position in the field
The gap to the leader, GPT-6 Astra (Anthropic run) at 0.703, is 0.095. Directly above sits GPT-6 Luna at 0.608. Directly below sits GPT-5.6 Sol at 0.605. The scores on this page are compiled from published documents rather than from one controlled run, so a small gap between 2 models can reflect a difference in grader version, reasoning effort, or deployment setting as well as a difference in capability.
Source of this score
Read from GPT-6 Astra System Card - HealthBench (Deployment Safety Hub) (system card, OpenAI, 2026-09-03). Vendor-reported. Confidence: verified. Configuration: OpenAI; length-adjusted; maximum reasoning effort; 60.8 (59.5, 1573) (adjusted, raw, mean response characters).
Evaluation | GPT-5.5 | GPT-5.6 Sol | GPT-5.6 Terra | GPT-5.6 Luna | GPT-6 Astra | GPT-6 Sol | GPT-6 Luna HealthBench Professional length-adjusted | 51.8 (57.2, 3818) | 60.5 (64.1, 3228) | 57.7 (62.4, 3618) | 55.7 (59.8, 3389) | 64.7 (68.2, 3185) | 60.8 (59.5, 1573) | 60.8 (61.2, 2119)
Section 11.4.1, Table 29, HealthBench Professional length-adjusted, GPT-6 Sol column; September 22 correction. · full entry on the sources page
What does GPT-6 Sol score on HealthBench Professional?
GPT-6 Sol scores 0.608 on HealthBench Professional, which places it at rank 9 of 31 models on the board as of September 30, 2026. The number was read from GPT-6 Astra System Card - HealthBench (Deployment Safety Hub), listed on the sources page.
How much does GPT-6 Sol cost to run?
GPT-6 Sol is priced at $2.00 per million input tokens and $10.00 per million output tokens through OpenAI's API.
Head to head
Pairings with a dedicated comparison page are linked; every other difference is in the score-difference matrix.
- GPT-6 Sol vs GPT-6 Astra (Anthropic run)0.608 vs 0.703 · GPT-6 Astra (Anthropic run) by 0.095
- GPT-6 Sol vs Claude Sonnet 5.50.608 vs 0.692 · Claude Sonnet 5.5 by 0.084
- GPT-6 Sol vs Claude Fable 50.608 vs 0.660 · Claude Fable 5 by 0.052
- GPT-6 Sol vs Claude Opus 5.50.608 vs 0.656 · Claude Opus 5.5 by 0.048
- GPT-6 Sol vs GPT-6 Astra0.608 vs 0.647 · GPT-6 Astra by 0.039
- GPT-6 Sol vs Claude Fable 5 (September card)0.608 vs 0.633 · Claude Fable 5 (September card) by 0.025
- GPT-6 Sol vs Claude Fable 5.10.608 vs 0.621 · Claude Fable 5.1 by 0.013
- GPT-6 Sol vs GPT-6 Luna0.608 vs 0.608 · GPT-6 Luna by 0.000
- GPT-6 Sol vs GPT-5.6 Sol0.608 vs 0.605 · GPT-6 Sol by 0.003
- GPT-6 Sol vs Claude Opus 50.608 vs 0.598 · GPT-6 Sol by 0.010
- GPT-6 Sol vs Muse Spark 1.10.608 vs 0.593 · GPT-6 Sol by 0.015
- GPT-6 Sol vs Claude Sonnet 50.608 vs 0.578 · GPT-6 Sol by 0.030
- GPT-6 Sol vs GPT-5.6 Terra0.608 vs 0.577 · GPT-6 Sol by 0.031
- GPT-6 Sol vs Claude Opus 4.8 (Opus 4.8 grader)0.608 vs 0.574 · GPT-6 Sol by 0.034
- GPT-6 Sol vs Grok 4.70.608 vs 0.567 · GPT-6 Sol by 0.041
- GPT-6 Sol vs Claude Opus 4.80.608 vs 0.558 · GPT-6 Sol by 0.050
- GPT-6 Sol vs GPT-5.6 Luna0.608 vs 0.557 · GPT-6 Sol by 0.051
- GPT-6 Sol vs Muse Spark0.608 vs 0.541 · GPT-6 Sol by 0.067
- GPT-6 Sol vs GPT-5.6 Sol (August)0.608 vs 0.540 · GPT-6 Sol by 0.068
- GPT-6 Sol vs Claude Opus 4.70.608 vs 0.519 · GPT-6 Sol by 0.089
- GPT-6 Sol vs GPT-5.50.608 vs 0.518 · GPT-6 Sol by 0.090
- GPT-6 Sol vs Grok 4.60.608 vs 0.485 · GPT-6 Sol by 0.123
- GPT-6 Sol vs GPT-5.40.608 vs 0.481 · GPT-6 Sol by 0.127
- GPT-6 Sol vs GPT-50.608 vs 0.462 · GPT-6 Sol by 0.146
- GPT-6 Sol vs GPT-5.20.608 vs 0.459 · GPT-6 Sol by 0.149
- GPT-6 Sol vs Claude Sonnet 4.60.608 vs 0.442 · GPT-6 Sol by 0.166
- GPT-6 Sol vs GPT-5.6 Luna (August)0.608 vs 0.441 · GPT-6 Sol by 0.167
- GPT-6 Sol vs GPT-5.10.608 vs 0.396 · GPT-6 Sol by 0.212
- GPT-6 Sol vs GPT-5.5 Instant0.608 vs 0.384 · GPT-6 Sol by 0.224
- GPT-6 Sol vs MAI-Thinking-10.608 vs 0.350 · GPT-6 Sol by 0.258
Where the scores come from and how they are read is on the methodology page. The full ranking is on the leaderboard.