[1] AI21 Labs was founded in November 2017 by Yoav Shoham, Ori Goshen, and Amnon Shashua in Tel Aviv, Israel.

[4] On October 27, 2020, AI21 Labs launched its first product, Wordtune, an AI-based writing assistant that understands context and can suggest paraphrases and rewrites.

[17] In July 2022, the company raised $64 million in a series B funding round led by Ahren with the participation of prof. Amnon Shashua, Walden Catalyst, Pitango, TPY Capital, and Mark Leslie.

[21][1][22] On March 9, 2023, the company announced the release of Jurassic-2, claiming it has better response times, understands more languages, and features advanced instruction following.

[24][25] On March 29, 2024 the company released Jamba, an open weights large language model built on a hybrid Mamba SSM transformer using mixture of experts with up to 256k context.