Claude Opus 5.5 vs GPT-6 Sol
26 SHARED BENCHMARKSAcross 26 shared benchmarks, Claude Opus 5.5 scores higher on 23 and GPT-6 Sol on 3. The widest gap is AA-Omniscience, where Claude Opus 5.5 scores 46.4 against 27.1. GPT-6 Sol is the cheaper of the two on tracked API pricing ($2.00 against $4.00 per million input tokens).
At a glance
Release dates: the vendor's own announcement for Claude Opus 5.5; Artificial Analysis for GPT-6 Sol. Prices: Artificial Analysis for Claude Opus 5.5; OpenAI's own price page for GPT-6 Sol. ◆ = independently verified score.
Where each leadsby capability area · benchmark wins
Biggest gaps
Claude Opus 5.5 pulls furthest ahead on
- GDPVal67.3 vs 49.3
- Terminal-Bench 4.059.6 vs 43.9
- LiveBench · Agentic Coding71.7 vs 52.9
GPT-6 Sol pulls furthest ahead on
- AA IT-Bench SRE49.4 vs 38.2
Every shared benchmark26 · grouped by area
Reasoning 5
Coding 4
Agentic 3
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, openai-official), otherwise the lowest tracked offer.