OpenAI’s GPT-5.3-Codex is 25 percent faster and requires less than half the tokens as its predecessor, 5.2-Codex.
PCMag on MSN
OpenAI's Newest GPT Model Helped to Build Itself
GPT-5.3-Codex is the first time the ChatGPT maker has found that its own models can be instrumental in its own development.
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