Poolside AI: Laguna S 2.1
Laguna S 2.1 is the latest coding agent model from [Poolside](\u003chttps://poolside.ai/\u003e). Laguna S 2.1 is a 118B total parameter model with 8B active parameters, scoring 70.2% on Terminal-Bench 2.1 and 40.4% on DeepSWE, making it one of the strongest coding models in its category. Open-weight under the OpenMDW-1.1 license. Laguna S 2.1 is designed for software engineering and agentic coding use cases, and you are responsible for confirming that it is appropriate for your intended applica
Specifications
| Attribute | Value |
|---|---|
| Lab | Poolside AI |
| Tags | Coding Agentic Fast |
| Release Date | 2026-07 |
| Context Window | 1,048,576 tokens |
| Input Price / 1M | $0.09 |
| Output Price / 1M | $0.18 |
| Input Modalities | Text |
| Output Modalities | Text |
Strengths
- Million-token context window for very long tasks
- Low input pricing for cost-sensitive production workloads
- Tool-use support for agentic workflows
Weaknesses
- Newer listing with limited independent benchmark coverage
- Text-only inputs limit multimodal application coverage
Best For
- Agentic workflows and tool-using applications
- Long-context document and codebase processing
In Depth: Laguna S 2.1
Summary
Laguna S 2.1 is an AI model from Poolside AI.
Released 2026-07. It supports Text input and produces Text output, with a context window of 1,048,576 tokens. Input pricing is $0.09 per 1M tokens and output is $0.18 per 1M tokens on OpenRouter.