OpenAI just dropped GPT-5.3-Codex-Spark that’s supposed to be just as good as Codex but faster.
Thanks to a partnership with Cerebras (the chip makers), this model is optimized to build quickly.
I tested it live with a "Vampire Survivors" style prompt and in under a minute, I had a playable game called "Nocturne Survivors" with functioning XP, leveling, and upgrade systems.
But right now it’s only on the $200/mo Pro plan.
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