American AI startup Poolside launches free, high-performing open model Laguna XS.2 for local agentic coding

Poolside, founded in San Francisco in 2023. has launched its two new Laguna large language models, both of which offer affordable intelligence optimized for agentic workflows (AI that does more than just chat or generate content, but can, in this case, write code, use third-party tools, and take actions autonomously), as well as a new coding agent harness called (fittingly) "pool" and a new web-based, mobile optimized agentic coding development and interactive preview environment, "shimmer," which lets you write code with the Laguna models on the go.

As Poolside wrote in a blog post today, it's spent the last few years "focused on serving our government and public sector clients with capable models deployable into the highest-security environments," yet is now going open source "to support builders and the wider research community."