Wafer-Scale Revolution: Benchmarking OpenAI’s GPT-5.3-Codex-Spark Architecture
Beyond the GPU Cluster: The Architecture of OpenAI’s GPT-5.3-Codex-Spark Beyond the GPU Cluster: The Architecture of OpenAI’s GPT-5.3-Codex-Spark Analysis: OpenAI’s strategic pivot to Cerebras silicon for the GPT-5.3-Codex-Spark model represents a fundamental architectural bifurcation in Large Language Model (LLM) inference. By decoupling specific high-velocity workloads from the Nvidia H100 ecosystem, OpenAI is effectively declaring war