ChatGPT Pro subscribers can try the ultra-low-latency model by updating to the latest versions of the Codex app, CLI, and VS Code extension. OpenAI is also making Codex-Spark available via the API to ...

GPT-5.3-Codex helped debug and deploy parts of itself. Codex can be steered mid-task without losing context. "Underspecified" prompts now produce richer, more usable results. OpenAI today announced ...

Spark, a smaller AI encoding model that generates over 1,000 tokens per second on Cerebras hardware. It is OpenAI's first ...

OpenAI's GPT-5.3-Codex-Spark, now on Cerebras hardware, delivers over 1,000 tokens/sec for real-time coding and pair-programming.