GPT-5.3-Codex-Spark is a lightweight version of the company’s coding model, GPT-5.3-Codex, that is optimized to run on ultra-low latency hardware and can deliver over 1,000 tokens per second.

When people come together and talk about really interesting topics, great questions spark better understanding and opportunities for new ideas to form. On The Spark from WITF, host Asia Tabb starts ...