Tweet by OpenAIDevs

February 12, 2026

Introducing GPT-5.3-Codex-Spark, our ultra-fast model purpose built for real-time coding. We’re rolling it out as a research preview for ChatGPT Pro users in the Codex app, Codex CLI, and IDE extension. https://t.co/6knTmyQZ4N

Author
OpenAIDevs
Date
February 12, 2026