GPT‑5.3‑Codex‑Spark

An ultra-fast model for real-time coding in Codex

Product HuntDeveloper ToolsLaunched Feb 13, 2026273#5 of the day

About GPT‑5.3‑Codex‑Spark

15x faster generation, 128k context, now in research preview for ChatGPT Pro users. Codex-Spark is optimized for interactive work where latency matters as much as intelligence. You can collaborate with the model in real time, interrupting or redirecting it as it works, and rapidly iterate with near-instant responses. Because it’s tuned for speed, Codex-Spark keeps its default working style lightweight: it makes minimal, targeted edits and doesn’t automatically run tests unless you ask it to.

The person behind GPT‑5.3‑Codex‑Spark

Romain Huet
Maker
Head of Developer Experience at OpenAI
Email not found yet

GPT‑5.3‑Codex‑Spark's team page →

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