GPT‑5.3‑Codex‑Spark Traffic & Growth
An ultra-fast model for real-time coding in Codex
Estimated Website Traffic
— openai.comSource month: September 2026 · Source: Similarweb estimate
This is whole-site traffic for openai.com; it does not measure this feature's usage, users, or customers.
Data status: Valid estimate · Updated: 2026-10-08
Current Estimated Visits
259.5M
Previous Estimated Visits
204.3M
Absolute Gain
+55.1M
Monthly Growth
+27.0%
Über 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.
