Poolside: Laguna XS 2.1
Laguna XS 2.1 is a reasoning model from Poolside released on Jul 2, 2026. It reads text and writes text, with a 262K token context window and up to 33K tokens per reply.
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It costs $0.10 per million input tokens and $0.20 per million output tokens. Cached input bills at $0.05, 50% less than fresh input.
It supports tool calling and prompt caching, and its weights are open, so you can host it yourself.
4 providers serve it, including Nvidia, Kilo Gateway and LLMTR.
- Modalities
- In / out price
- $0.10 / $0.20 per 1M
- Context
- 262K
- Max output
- 33K
- Released
- Jul 2, 2026
- Knowledge cutoff
- n/a
- Tool calling
- Structured output
- Reasoning
- Prompt caching
- Open weights
- Free to use
Laguna XS 2.1 pricing
USD, as listed on Oct 15, 2026. Most bills are input heavy, so the cached input rate matters as much as the headline price.
| Input | $0.10 / 1M tokens | |
|---|---|---|
| Output | $0.20 / 1M tokens | |
| Cached input (read) | $0.05 / 1M tokens | 50% off input |
Laguna XS 2.1 providers
4 providers serve it, including Nvidia, Kilo Gateway and LLMTR. Each host sets its own price and limits, so the cheapest one is not always the one with the longest context.
| Provider | Input /M | Output /M | Cache read /M | Context | Max output |
|---|---|---|---|---|---|
| Poolside First party | $0 | $0 | $0 | 262K | 33K |
| Nvidia | n/a | n/a | – | 262K | 16K |
| Kilo Gateway | n/a | n/a | – | 262K | 33K |
| LLMTR | n/a | n/a | – | 262K | 33K |
What Laguna XS 2.1 costs per month
Pick a workload close to yours or type your own volumes.
Supported request parameters
What you can set when you call Laguna XS 2.1 through an OpenAI compatible API.
- Tools
tools - Reasoning
reasoning - Temperature
temperature
Alternatives to Laguna XS 2.1
Models that take the same inputs and call tools, closest in price, cheaper ones first.
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More from Poolside
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by poolsideApr 28, 2026$0/M input tokens$0/M output tokens
Laguna XS 2.1 questions
How much does the Laguna XS 2.1 API cost?
$0.10 per million input tokens and $0.20 per million output tokens, with cached input at $0.05. The estimator on this page turns that into a monthly bill for your own workload.
What is the context window of Laguna XS 2.1?
262,144 tokens of input, and it can write up to 32,768 tokens in one reply. As a rough guide, a million tokens is around 750,000 English words.
Which providers serve Laguna XS 2.1?
4 providers serve it, including Nvidia, Kilo Gateway and LLMTR. Prices differ by host, so the Providers table on this page lists each one with its input and output price.
Does Laguna XS 2.1 support tool calling?
Yes. It accepts tool definitions, which is what an agent needs to call your APIs.
Is Laguna XS 2.1 open source?
Its weights are published, so you can run it on your own hardware or a cloud of your choice. Read the license before commercial use.
When was Laguna XS 2.1 released?
Jul 2, 2026.
Catalog data from models.dev (MIT licensed), refreshed daily, last on Oct 15, 2026. The summary is written from these facts.
Building on Laguna XS 2.1?
I test your real tasks on it and the two closest alternatives, then ship the agent on whichever wins on cost and accuracy.
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