GPT-3.5 model releases

A source-backed timeline for the GPT-3.5 model family, collecting release dates, labs, access details, context windows, and major lifecycle changes.

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GPT-3.5 Turbo

OpenAI

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OpenAI's first ChatGPT API model, bringing the GPT-3.5 chat-tuned line to developers at much lower cost than text-davinci-003.