OpenAI releases GPT-5.3-Codex-Spark: Designed for real-time programming.

OpenAI, in collaboration with Cerebras, has launched a new model, GPT-5.3-Codex-Spark, designed for real-time programming. Optimized for high-speed software development scenarios, the model can perform inference at a rate exceeding 1000 tokens per second, achieving near-instantaneous coding feedback. This addresses the issues of excessive waiting time and reduced control experienced by developers during long periods of AI-driven autonomous programming.