Laguna S 2.1

Laguna S 2.1 is Poolside's most capable Laguna 2.1 model: an open-weight Mixture-of-Experts coding model with 118B total and 8B activated parameters (256 routed experts plus one shared). It targets long-horizon and agentic coding with interleaved thinking and a 1,048,576-token context window in thinking and no-thinking modes. Text-to-text only, available as open weights and via Poolside's API and OpenRouter.