Laguna XS 2.1
Poolside · 2026-07-02 · 33.4B parameters
Laguna XS 2.1 is Poolside's open-weight Mixture-of-Experts model for agentic coding and long-horizon work, described by Poolside as 33B total parameters with 3B activated per token. It upgrades Laguna XS.2, supports per-request enable/disable of interleaved thinking, and uses 10 global-attention and 30 512-token sliding-window-attention layers across an exact 262,144-token context.
Benchmark scores
| Benchmark | Score |
|---|---|
| AHK-Eval | 25.0 |
| AHK-Eval Algorithms | 16.7 |
| AHK-Eval Data Structures | 16.7 |
| AHK-Eval Date and Time | 16.7 |
| AHK-Eval Easy | 41.7 |
| AHK-Eval Hard | 25.0 |
| AHK-Eval Hidden Cases | 26.0 |
| AHK-Eval Mid | 16.7 |
| AHK-Eval Numbers | 50.0 |
| AHK-Eval Parse Success | 72.2 |
| AHK-Eval Regex | 66.7 |
| AHK-Eval Strings | 0.0 |
| BuseyBench SVG | 2.0 |
| Eval Connections | 30.0 |
| Eval Connections — Guess Accuracy | 36.3 |
| GBENCH One-shot Coding GScore | 25.8 |