According to a recent LinkedIn post from OpenRouter, the company is now hosting the first public foundation models from Poolside.ai, branded Laguna M.1 and Laguna XS.2. The post describes these models as built for agentic coding and long-horizon workloads and notes that access is free for a limited time, which may encourage rapid early adoption by developers.
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The LinkedIn post indicates that Laguna M.1 is a 225B-parameter mixture-of-experts model with 23B active parameters, positioned as Poolside.ai’s most capable offering for software development tasks. Laguna XS.2 is presented as a smaller 33B MoE model with 3B active parameters and is characterized as competitive among Western open-weight models in its class.
For investors, the post suggests that OpenRouter is broadening its catalog with high-end coding-focused AI models, potentially strengthening its role as an aggregation and distribution layer for advanced LLMs. If these models gain traction with enterprise and independent developers, OpenRouter could see higher usage volumes, improving monetization prospects around metered access once the promotional free period ends.
Strategically, integrating specialized agentic coding models may position OpenRouter more favorably against rival AI gateways and platforms that emphasize general-purpose chat or content use cases. The collaboration with Poolside.ai also hints at an ecosystem approach in which OpenRouter becomes a preferred launch venue for new foundation models, which could enhance its bargaining power and long-term network effects in the AI infrastructure market.