---
id: "poolside/laguna-s-2.1"
also: ["poolside/laguna-s-2.1-20260720", "poolside/Laguna-S-2.1", "vercel/poolside/laguna-s-2.1"]
card_usd_per_m: "0.09 in, 0.18 out, at poolside/fp4"
cheapest_list_usd_per_m: "0.09 in, 0.18 out, at poolside/fp4 on openrouter"
cheapest_effective_usd_per_m: "0.0117 in, 0.1794 out, at poolside/fp4 on openrouter"
context: 1048576
max_output: 131072
input: ["text"]
output: ["text"]
released: "2026-07-21"
params: ["include_reasoning", "max_tokens", "reasoning", "stop", "temperature", "tool_choice", "tools"]
endpoints: 2
gateways: "openrouter (1), vercel (1)"
no_training: 1
trains: 1
retains_prompts: 2
---
# Poolside: Laguna S 2.1

Laguna S 2.1 is the latest coding agent model from [Poolside](https://poolside.ai/). Laguna S 2.1 is a 118B total parameter model with 8B active parameters, scoring 70.2% on Terminal-Bench 2.1 and...