Laguna XS.2 (free)

About Laguna XS.2 (free)

Laguna XS.2 (free) is Poolside's compact coding-agent model, paired with tool calling and optional reasoning in a small-footprint package. It handles a 262,144-token context window and caps completion at 32,768 tokens, so it's built for long-context code tasks rather than short chat turns. Text in, text out only — no vision. Reasoning is available per request but not forced on, which keeps it flexible for both quick tool-calling steps and slower, more deliberate coding tasks. It's the free tier of the XS.2 line, sitting alongside a paid version with identical specs.

This is the free version of Laguna XS.2 — same 262,144-token context window as its paid sibling (which costs $0.10/$0.20 per 1M input/output tokens), but at zero cost. That context window beats 56% of catalog models. Poolside also runs a larger Laguna M.1 line at $0.20/$0.40 per 1M tokens, plus a free M.1 tier, so the lab offers four price/size combinations. Reasoning is optional here, not mandatory — you can toggle it per request depending on whether you need speed or depth.

Questions

How much does Laguna XS.2 (free) cost via API?

It's free — $0 per 1M input tokens and $0 per 1M output tokens from the provider, and OpenKey's 3% fee on a $0 base is still $0. There's also a paid Laguna XS.2 with identical specs at $0.10/$0.20 per 1M input/output tokens if you need a non-free SLA or rate limits.

What is Laguna XS.2 (free)'s context window?

It's 262,144 tokens, roughly enough to hold several large codebases' worth of source files or a few hundred pages of text in a single request. That's a larger window than 56% of models in the OpenKey catalog, and it applies equally to the free and paid versions of XS.2.

Is Laguna XS.2 (free) free to use?

Yes, both prompt and completion tokens are priced at $0.00 per 1M from the provider. It's one of the free models on OpenKey, sitting next to a paid Laguna XS.2 variant priced at $0.10/$0.20 per 1M tokens for input/output.

Does Laguna XS.2 (free) support tool calling and reasoning?

Yes to both. It supports tool_choice and tools parameters for function calling, plus a reasoning parameter that's enabled by default but not mandatory — you can turn it off per request. It does not support image or other non-text input; modality is text-to-text only.

How does Laguna XS.2 (free) compare to Laguna M.1?

Laguna M.1 is Poolside's larger model, priced at $0.20/$0.40 per 1M input/output tokens versus $0.10/$0.20 for the paid XS.2 — roughly double the cost. Both have a free tier: Laguna M.1 (free) and Laguna XS.2 (free) are both $0.00/$0.00, giving you a choice of two free coding models from the same lab at different size classes.