As in, really super duper fast. Code appears essentially instantaneously. There are times when you feel the need for speed and not the need for robust intelligence. Many tasks are more about getting it done than about being the best like no one ever was.
It does seem like it is a distinct model, akin to GPT-5.3-Codex-Flash, with only a 128k context window and lower benchmark scores, so you’ll need to be confident that is what you want.
I think the majority of this speedup due to OpenAI’s partnership with Cerebras, rather than a new model. Cerebras chips can reach this speed because they are much larger and don’t have to pay the costs of interconnect.
I think the majority of this speedup due to OpenAI’s partnership with Cerebras, rather than a new model. Cerebras chips can reach this speed because they are much larger and don’t have to pay the costs of interconnect.