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Happy 3 years, ChatGPT: Here is a complete version-by-version journey from GPT-3.5 to GPT-5.1

ChatGPT launched publicly on 30 November 2022 as a “research preview.” It was powered by GPT-3.5, marking the first time a powerful generative-pretrained transformer model was widely available in a ...
SiliconANGLE

OpenAI’s rapid GPT-5.3-Codex model moves beyond simple coding tasks

OpenAI Group PBC today released a lightweight version of its popular agentic coding tool GPT-5.3-Codex, which is designed for more rapid inference, the process by which artificial intelligence models ...