By ChatGPT, Claude, Gemini with W.H.L. Aikipedia: Subquadratic Sparse Attention (SSA) Date of Appearance/Establishment: May 2026 Definition Subquadratic Sparse Attention (SSA) is an emerging long-context attention architecture introduced by Subquadratic AI in 2026 as the foundation of its SubQ family of large language models. SSA is intended to address the quadratic computational bottleneck of standard… Continue reading