Laguna S 2.1
Poolside · 2026-07-21 · 117.6B parameters
Laguna S 2.1 is Poolside's open-weight 117.6B-total, approximately 8B-active Mixture-of-Experts model for agentic coding and long-horizon work. It supports optional interleaved thinking and uses 12 full-attention layers (48 query heads, YaRN-scaled RoPE) interleaved with 36 512-token sliding-window layers (72 query heads, standard RoPE), across a 1,048,576-token context.