I saw this model being added to a competitor product, possible we see it in cursor?
Basically not as good as regular codex, but rather fast.
https://openai.com/index/introducing-gpt-5-3-codex-spark/
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Hi, thanks for sharing! As of today, Cursor hasn’t officially announced plans to add GPT-5.3-Codex-Spark. I’ll pass your request on to the team so they know there are users waiting for this model. Have a great day!
Report @Colin
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Access is very limited right now! If/when we can expand it, we’ll announce it!
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Does this mean some people have access to it within Cursor?
It’s seemingly getting even faster, saw that post from yesterday :
Hoping it gets available through API soon 
I personally got it in Cursor since yesterday, have not used it yet though, there is no pricing in IDE or docs
interesting, means it’s available through some API, I personally don’t have it in the model list while on nightly ¯\_(ツ)_/¯…
As colin mentioned earlier I assume they are rolling it to some users only gradually, I am on the Ultra plan, so maybe that is the reason. I assume OpenAI gave some early API access to Cursor as I saw a competitor also already integrate it earlier.
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You’re probably right, I’m on Pro+, we’ll hear about it soon enough .
I also read something about the fact that only spark is running on cerebras since their collab, so basically the speed boost we got on codex 5.3 release was just optimization, not yet leveraging cerebras 
We may even have faster plain codex models, as spark still underperforms in intelligence compared to them…
(found where I read it, sharing it here in case someone was interested :
)
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