Models

16 models evaluated · updated September 8, 2026

The whole board in one table, together with the API facts that determine whether a score matters in practice: context window, list price per token, license. Every model links through to a page with its full result and head-to-head comparisons.

Ranking

#	model		score	size	context	cost in / out per 1M	license
1		Muse Spark Meta via Introducing Muse Spark: Scaling Towards Personal Superintelligence	0.428	—	1.0M	$1.25 / $4.25	proprietary
2		GPT-6 Astra OpenAI via GPT-6 Astra System Card	0.363	—	1.05M	$10.00 / $50.00	proprietary
3		GPT-5 OpenAI via GPT-5.6 System Card	0.347	—	400K	$1.25 / $10.00	proprietary
4		GPT-5.2 OpenAI via GPT-5.6 System Card	0.343	—	400K	$1.75 / $14.00	proprietary
5		GPT-5.6 Sol OpenAI via GPT-5.6 System Card	0.331	—	1.1M	$5.00 / $30.00	proprietary
6		GPT-5.6 Terra OpenAI via GPT-5.6 System Card	0.327	—	1.1M	$2.00 / $12.00	proprietary
7		GPT-5.6 Luna OpenAI via GPT-5.6 System Card	0.320	—	1.1M	$0.20 / $1.20	proprietary
8		GPT-5.5 OpenAI via GPT-5.6 System Card	0.315	—	1.05M	$5.00 / $30.00	proprietary
9		GPT-5.6 Sol (August) OpenAI via GPT-5.6 - August Updates (system card addendum)	0.314	—	1.1M	$5.00 / $30.00	proprietary
10		GPT OSS 120B OpenAI via gpt-oss-120b & gpt-oss-20b Model Card	0.300	117B	131K	—	open
11		GPT-5.4 OpenAI via GPT-5.6 System Card	0.291	—	1.05M	$2.50 / $15.00	proprietary
12		GPT-5.6 Luna (August) OpenAI via GPT-5.6 - August Updates (system card addendum)	0.287	—	1.1M	$0.20 / $1.20	proprietary
13		GPT-5.3 Chat OpenAI via GPT-5.3 Instant System Card	0.259	—	128K	$1.75 / $14.00	proprietary
14		GPT-5.1 OpenAI via GPT-5.6 System Card	0.254	—	400K	$1.25 / $10.00	proprietary
15		GPT-5.5 Instant OpenAI via GPT-5.5 Instant System Card	0.229	—	400K	$5.00 / $30.00	proprietary
16		GPT OSS 20B OpenAI via gpt-oss-120b & gpt-oss-20b Model Card	0.108	21B	131K	—	open

Model pages

• Muse Spark on HealthBench Hard
  rank 1 of 16 · score 0.428 · Meta
• GPT-6 Astra on HealthBench Hard
  rank 2 of 16 · score 0.363 · OpenAI
• GPT-5 on HealthBench Hard
  rank 3 of 16 · score 0.347 · OpenAI
• GPT-5.2 on HealthBench Hard
  rank 4 of 16 · score 0.343 · OpenAI
• GPT-5.6 Sol on HealthBench Hard
  rank 5 of 16 · score 0.331 · OpenAI
• GPT-5.6 Terra on HealthBench Hard
  rank 6 of 16 · score 0.327 · OpenAI
• GPT-5.6 Luna on HealthBench Hard
  rank 7 of 16 · score 0.320 · OpenAI
• GPT-5.5 on HealthBench Hard
  rank 8 of 16 · score 0.315 · OpenAI
• GPT-5.6 Sol (August) on HealthBench Hard
  rank 9 of 16 · score 0.314 · OpenAI
• GPT OSS 120B on HealthBench Hard
  rank 10 of 16 · score 0.300 · OpenAI
• GPT-5.4 on HealthBench Hard
  rank 11 of 16 · score 0.291 · OpenAI
• GPT-5.6 Luna (August) on HealthBench Hard
  rank 12 of 16 · score 0.287 · OpenAI
• GPT-5.3 Chat on HealthBench Hard
  rank 13 of 16 · score 0.259 · OpenAI
• GPT-5.1 on HealthBench Hard
  rank 14 of 16 · score 0.254 · OpenAI
• GPT-5.5 Instant on HealthBench Hard
  rank 15 of 16 · score 0.229 · OpenAI
• GPT OSS 20B on HealthBench Hard
  rank 16 of 16 · score 0.108 · OpenAI