Hi, I’m a ChatGPT Pro user. For several days, I’ve been able to see a separate GPT-5.3-Codex-Spark usage quota in my Usage page. However, I still cannot find any way to use Spark. GPT-5.3-Codex-Spark does not appear in the model selector, and I don’t see any other interface or option to access it. …

According to OpenAI’s current documentation, GPT-5.3-Codex-Spark is a Pro research preview and is accessed through Codex, not the regular ChatGPT model picker. It was released for the latest Codex app, CLI and VS Code extension. If you can see a separate Spark quota but the model is missing, I woul…

Hi @yanwang92 , [image] yanwang92: However, I still cannot find any way to use Spark. GPT-5.3-Codex-Spark does not appear in the model selector, and I don’t see any other interface or option to access it. This sounds weird. Is it the same in every chat/project in Codex, that you aren’t able t…

Shows for me in Codex CLI FYI using ChatGPT Auth. But also not in ChatGPT Work. btw it’s of limited use as even at Pro x20 the quota is eaten FAST. It’s astonishingly quick though.

oh, i just see spark ,it come so later, lol

Good thing you´re able to select it and yeah, it´s last on the model selection list.

There has been an announcement on Twitter that this model will be retired. [image] Tibo @thsottiaux Next week we’ll be retiring GPT-5.3-Codex-Spark. Can you believe we shipped a model named as such!! It's had a good run and was a lot of fun, but usage has been declining and we have sig…

Pro user: GPT-5.3-Codex-Spark quota is visible, but Spark is not available in the model selector

ChatGPT Bugs

rfhacr September 15, 2026, 9:39am 7

I have the same problem today. Yesterday, I worked with GPT-5.3 Codex Spark then exit Codex on macOS. Today, Codex app received update and I updated. Now, according to my screenshots, it disappeared!

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Pro user: GPT-5.3-Codex-Spark quota is visible, but Spark is not available in the model selector

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