HyperAI Super Neural

Jan 14, 2026 · Artificial Intelligence

How OpenAI’s Circuit Sparsity Makes Large Language Model Reasoning Transparent

The article explains OpenAI’s 0.4B‑parameter Circuit Sparsity model, which zeros 99.9% of weights and uses dynamic forced sparsity, activation sparsity, and custom components to turn a dense transformer into an interpretable sparse circuit, and also highlights recent multilingual, portrait‑enhancement, and instruction‑tuned models with online demos.