GPT-5.6 Sol vs GPT-6 Luna
25 SHARED BENCHMARKSAcross 25 shared benchmarks, GPT-5.6 Sol scores higher on 24 and GPT-6 Luna on 1. The widest gap is Terminal-Bench 4.0, where GPT-5.6 Sol scores 39.9 against 12.6. GPT-6 Luna is the cheaper of the two on tracked API pricing ($0.10 against $4.00 per million input tokens).
At a glance
Release dates per Artificial Analysis. Prices: Artificial Analysis for GPT-5.6 Sol; Artificial Analysis for GPT-6 Luna. ◆ = independently verified score.
Where each leadsby capability area · benchmark wins
Biggest gaps
GPT-5.6 Sol pulls furthest ahead on
GPT-6 Luna pulls furthest ahead on
- AA-Omniscience · Non-hallucination23.3 vs 7.8
Every shared benchmark25 · grouped by area
Reasoning 5
Coding 4
Agentic 2
Factuality 2
Instruction Following 1
Long Context 1
Math 1
Multimodal 1
Other shared benchmarks 8
Each score is the one the model's own page shows — the most authoritative tracked result for that benchmark, on the benchmark's standard methodology (source-attributed). ↓ marks lower-is-better metrics; ◆ an independently verified score. Open either model for its full surface, provenance and pricing. Quoted rates are the price-setter row we currently track for each model — its direct or vendor-official listing where one exists (direct, direct), otherwise the lowest tracked offer.