Jurassic model releases

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

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Jurassic-2 Ultra

AI21

AI21

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2 models

Second-generation Jurassic model with better multilingual support, lower latency, and instruction following.

AI21's first major API language model, launched through AI21 Studio.