Arcee AI's June 2025 release made five models' learned parameters available for developers to deploy and adapt. Three had previously been offered through its hosted Conductor service. One, Caller, was specialized for turning API specifications into function calls and coordinating tool-based workflows, giving developers a downloadable option for that specific role. The release also included two research models. Deployment rights remained model-specific: the announcement listed Apache 2.0 for Caller and a Llama community license for SuperNova. Open-weights release.
Terms in this piece · Glossary
open weights — A model whose trained parameters are published for anyone to download and run — unlike API-only models you can access but never possess.
