Summary
Poolside's Laguna XS.2 is a new open-weight coding model positioned for agentic and long-horizon software work. Poolside describes it as a 33B-total, 3B-active Mixture-of-Experts model released under Apache 2.0 and designed to run locally while preserving tool use and reasoning support.
What changed
Poolside publicly released Laguna XS.2 as an open-weight coding model and tied it to its broader agentic coding product push.
Why it matters
Open-weight coding models are getting more specifically optimized for agent workflows instead of generic chat. Laguna XS.2 matters because it gives teams another locally deployable option aimed at long-context coding tasks without depending on a closed vendor runtime.
Evidence excerpt
Poolside says Laguna XS.2 is an open-weight 33B-total, 3B-active coding model built for agentic coding and long-horizon work, available under Apache 2.0.