A New Version Of OpenAI’s Codex Is Powered By A New Dedicated Chip

Codex Spark delivers real-time AI coding with ultra-low latency for rapid developer workflows and collaboration.
Matilda
A New Version Of OpenAI’s Codex Is Powered By A New Dedicated Chip
Codex Spark: OpenAI's Lightning-Fast AI Coding Assistant OpenAI has launched Codex Spark, a lightweight version of its GPT-5.3-powered coding assistant designed for real-time collaboration and rapid iteration. Unlike its heavier counterpart built for complex, long-running tasks, Spark leverages dedicated Cerebras hardware to slash inference latency—making it ideal for developers who need instant feedback during prototyping. Currently in research preview for ChatGPT Pro subscribers, this release marks the first tangible outcome of OpenAI's landmark $10 billion partnership with chipmaker Cerebras. For developers tired of waiting seconds for AI suggestions, Spark promises a fluid, conversational coding experience where the assistant keeps pace with human thought. Credit: Jakub Porzycki/NurPhoto / Getty Images Why Speed Changes Everything for AI Coding Traditional AI coding tools often introduce frustrating delays between a developer's request and the model's response. That ha…