A new version of OpenAI’s Codex is powered by a new dedicated chip

OpenAI released GPT-5.3-Codex-Spark, a lightweight version of its agentic coding tool optimized for faster inference and real-time collaboration. The model runs on Cerebras' Wafer Scale Engine 3 chip with 4 trillion transistors, marking the first milestone in their $10 billion partnership announced last month. Spark is designed Show more