Laguna XS.2
#40 in Lütte & Edge-ModellePoolside · siet 28. April 2026 · 16× · tolest 30. Juni 2026
3
Momentum
Laguna XS.2 is Poolside's first open-weight model, released April 28, 2026. It is a Mixture-of-Experts model with 33 billion total parameters, of which only 3 billion are activated per token, allowing it to run locally on a single GPU or a Mac with 36 GB of RAM. The model was trained entirely in-house ("Model Factory") on over 30 trillion tokens, is freely available under the Apache 2.0 license, and is designed for agentic coding and long-horizon tasks. It supports a 256K-token context window, native reasoning (interleaved thinking), and tool calling.
Momentum-Verloop
19.05.17.08.
Features
| Key Benchmark (%) | 68.2% on SWE-bench Verified; 44.5% on SWE-Bench Pro; 30.1% on Terminal-Bench 2.0 |
| Context Window (Tokens) | 256,000 tokens (262,144) |
| License | Apache 2.0 (open weights, free for commercial & non-commercial use) |
| Multimodality | Not multimodal – pure text-generation model for agentic coding |
| Platform | Hugging Face, Ollama (MLX), vLLM, SGLang, TRT-LLM, OpenRouter, Poolside API, Zed/JetBrains via ACP |
| Price per 1M Tokens | $0.10 input / $0.20 output (standard on OpenRouter); temporarily free ($0/$0) via Poolside API & OpenRouter |
| Release Date | April 28, 2026 |