AI21 Labs Funding History

AI21 Labs develops large language models and NLP tooling, including the Jamba model family and RAG frameworks offered through its API platform.

Company Overview

Founded 2017 · Tel Aviv, Israel

Aug 30, 2023
Series C
US$155 million
Led by Google.
Source · multiples.vc ↗
Jan 26, 2023
Series B Extension
US$64 million
Led by Google.
Source · multiples.vc ↗
Aug 15, 2022
Strategic
US$50 million
Led by Google.
Source · multiples.vc ↗
Nov 15, 2020
Series A
~US$34.5 million
Led by Pitango First.
Source · multiples.vc ↗

AI21's open hybrid Transformer-Mamba model family built around long-context efficiency, served via the AI21 API and cloud marketplaces.

Details and Sources

Status: activeReviewed: 2026-10-14