AI21 Labs is an enterprise AI company that builds large language models and systems around them. Founded in 2017, it is known for the Jurassic models, the Jamba family of open-weights models combining Mamba and transformer architectures, and the Maestro orchestration system. Its website now highlights an Intelligent Gateway for reducing wasted tokens, dedicated models adapted from smaller open-source models, and post-training. Customers can use the managed AI21 Studio platform and API, or deploy models privately.
AI21 Labs is headquartered in Tel Aviv, Israel, outside the EU and EFTA. It offers private deployments in a customer's own VPC or on-premises, managed by AI21 or self-deployed, and states that the vendor then has no visibility of customer data. Jamba weights can be downloaded, but use remains subject to AI21's terms, so it is not open source in the usual sense. The pages reviewed name no hosting regions for the managed platform, so European organisations should confirm where processing takes place.