Arcee AI trained four models for $20 million. Now, it's worth $1 billion.

Fortune · 16 ● 2 sources

Arcee AI trained four open-weight models for $20 million and later sold the company at a $1 billion pre-money valuation after raising a Series B. The training budget was about $20 million for four models, including a 400-billion-parameter model named Trinity Large released in early 2026. As a result, Arcee is moving from quiet post-training work to new open-weight model and product development with expanded partnerships, including with the U.S. Department of Energy.