GPT-5.5 vs GPT-6 Sol
30 SHARED BENCHMARKSAcross 30 shared benchmarks, GPT-5.5 scores higher on 9 and GPT-6 Sol on 20, with 1 level. The widest gap is AA-Omniscience · Non-hallucination, where GPT-6 Sol scores 39.9 against 11. GPT-6 Sol is the cheaper of the two on tracked API pricing ($2.00 against $5.00 per million input tokens).
At a glance
Release dates per Artificial Analysis. Prices: Artificial Analysis for GPT-5.5; Artificial Analysis for GPT-6 Sol. ◆ = independently verified score.
Where each leadsby capability area · benchmark wins
Biggest gaps
GPT-5.5 pulls furthest ahead on
- AA-Omniscience · Accuracy58 vs 54.5
GPT-6 Sol pulls furthest ahead on
- AA-Omniscience · Non-hallucination39.9 vs 11
- Terminal-Bench 4.043.9 vs 14.6
- GDPVal49.3 vs 41.8
Every shared benchmark30 · grouped by area
Reasoning 6
Coding 4
Agentic 3
Factuality 3
Instruction Following 1
Math 1
Other shared benchmarks 10
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.