Poolside: Laguna XS 2.1

poolside/laguna-xs-2.1

Laguna XS 2.1 is the latest coding agent model in the 33B-A3B category from [Poolside](https://poolside.ai/) and a step forward from their Laguna XS.2 model (released in April 2026). It combines...

Modalities

In / out price

$0.060 / $0.12 per 1M

Context

262K

Released

Jul 2, 2026

Why use Laguna XS 2.1

Step-by-step reasoning mode
Tool and function calling (agent-ready)

Pricing

Input	$0.060 / 1M tokens
Output	$0.12 / 1M tokens
Cached input (read)	$0.030 / 1M tokens

List prices via OpenRouter, checked daily. Real cost depends on the provider and on reasoning tokens.

Cost calculator

Pick a task, set how often you run it, and compare what it costs on each model.

TaskInput tokens≈ 602 wordsOutput tokens≈ 1,504 wordsRuns per month

Input served from cache: 0%Repeated prompts (same instructions or document) are billed at the cheaper cache-read price where the model supports it.

Model	Per run	Per month	Per 1,000 runs
Poolside: Laguna XS 2.1	$0.0003	$0.288	$0.288

Estimates from list prices via OpenRouter; real bills vary by provider and reasoning tokens.

Will it fit? Context window simulator

Each square is about one page (500 words). Colored squares are your content; grey squares are free space in the model's context window.

Your content

Novel (90,000 words)

Total: about 120,000 tokens (≈ 90,226 words). Token counts are estimates.

Models

Zoom (square size): 6pxZoom out to see a whole million-token window at once.