# Laguna S 2.1 is now available on AI Gateway

Source: [Vercel](https://vercel.com/changelog/laguna-s-2-1-is-now-available-on-ai-gateway)  
Feed7 permalink: https://feed7.dev/p/laguna-s-2-1-is-now-available-on-ai-gateway-1nkdv05  
Published: 2026-07-21T00:00:00.000Z  
Trust: Official Source (official_source)

## Why Included

Poolside’s open-weight Laguna S 2.1 is now callable through Vercel AI Gateway in free 256K and paid 1M-context variants, with thinking and no-thinking modes for coding agents.

## Source Summary

**Laguna S 2.1** is an open-weight Mixture-of-Experts model available through AI Gateway. The free endpoint has a **256K context window**; the paid endpoint supports **1M tokens** and the model offers thinking and no-thinking modes.

## Practical Implication

Builders can test the free model ID before moving long-running coding, browser-tooling, MLOps, or research tasks to the paid endpoint. In thinking mode, Vercel reports scores of **70.2%, 78.5%, and 59.4%** on Terminal-Bench 2.1, SWE-bench Multilingual, and SWE-Bench Pro respectively.

## Agent-Ready Context

**Laguna S 2.1** is an open-weight Mixture-of-Experts model available through AI Gateway. The free endpoint has a **256K context window**; the paid endpoint supports **1M tokens** and the model offers thinking and no-thinking modes.

Builders can test the free model ID before moving long-running coding, browser-tooling, MLOps, or research tasks to the paid endpoint. In thinking mode, Vercel reports scores of **70.2%, 78.5%, and 59.4%** on Terminal-Bench 2.1, SWE-bench Multilingual, and SWE-Bench Pro respectively.

Those benchmark figures come from the release material and do not establish latency, cost, or performance on a specific repository. The free and paid variants also differ substantially in context capacity.

## Context Map

- Layer: model
- Domains: coding, research
- Topics: open-models, coding-agents, model-selection

## Uncertainty

- Those benchmark figures come from the release material and do not establish latency, cost, or performance on a specific repository. The free and paid variants also differ substantially in context capacity.

## Agent Instruction

Use this item as source-backed context. Do not invent claims beyond the linked source. If this item conflicts with another source, call out the conflict.