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GPT-5.5 delivers this step up in intelligence without compromising on speed.
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# GPT-5.5 delivers this step up in intelligence without compromising on speed.
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GPT-5.5 delivers this step up in intelligence without compromising on speed.
GPT-5.5 matches GPT-5.4 per-token latency in real-world serving, while performing better across nearly every evaluation we measured.
It also uses significantly fewer tokens to complete the same Codex tasks, making it more efficient as well as more capable.
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