benchmarks

Best spec comparison sites with auditable scores (2026): vsMars, GSMArena, RTINGS, DXOMARK, Technical City, and PassMark compared on method and limits.

AI benchmarks determine which models get deployed and trusted. Understanding how they work, how scores are computed, and where they fail is essential context for any AI claim.

Claude Opus 4.6 held the top position across all three LMSYS Chatbot Arena leaderboards simultaneously in early 2026. GPT-5 leads on math. Gemini 3.1 Pro leads on multimodal tasks. No single model dominates everything. Here is a systematic breakdown of how the frontier models actually compare — benchmark scores, real-world strengths, pricing, and which to choose for each task.