GPT-5.3-Codex-Spark
A real-time coding model with 15x faster generation, in research preview for ChatGPT Pro.
Introducing GPT-5.3-Codex-Spark—our first real-time coding model. 15x faster generation, 128k context, now in research preview for ChatGPT Pro users.
Official source
Introducing GPT-5.3-Codex-Sparkopenai.com · published