AI Reports · Stanford HAI · 2026-10-02 · Report / white paper
Technical Performance | The 2026 AI Index Report | Stanford HAI
This chapter gives a comprehensive overview of AI performance in 2025 across image, video, language, speech, reasoning, robotics, and agentic systems. Frontier models gained 30 percentage points in a single year on Humanity's Last Exam. Evaluations intended to stay challenging for years are now saturated within months, shortening the period in which benchmarks remain useful.