Laguna S 2.1 vs Laguna XS 2.1: Specs & Benchmark Comparison
Laguna S 2.1 and Laguna XS 2.1 both come from Poolside, and both were released in July 2026. Laguna S 2.1 is the larger model at roughly 118 billion parameters, against 33 billion for Laguna XS 2.1.
The two models share 2 published benchmarks. Laguna S 2.1 leads on 2 of them. The widest gaps are on SWE-bench Multilingual, where Laguna S 2.1 scores 78.5% against 63.1%; SWE-Bench Pro, where Laguna S 2.1 scores 59.4% against 47.6%. Averaged across everything we track, Laguna S 2.1 sits at 57.4% and Laguna XS 2.1 at 54.8%.
On price the two are close: Laguna S 2.1 costs $0.10 per million input tokens and $0.20 per million output tokens, Laguna XS 2.1 $0.10 and $0.20. Laguna S 2.1 takes the larger context window at 1M tokens, compared with 262K for Laguna XS 2.1.
| Characteristic | Laguna S 2.1 | Laguna XS 2.1 |
|---|---|---|
| Company | Poolside | Poolside |
| Release Date | July 21, 2026 | July 2, 2026 |
| Parameters | 118B | 33B |
| Multimodal | No | No |
| Context (input) | 1.0M | 262K |
| Input Price / 1M | $0.10 | $0.10 |
| Output Price / 1M | $0.20 | $0.20 |
| Average Score | 57.4% | 54.8% |
| Benchmarks | ||
| SWE-bench Multilingual | 78.5% | 63.1% |
| SWE-Bench Pro | 59.4% | 47.6% |
Visual Benchmark Comparison
Verdict
Laguna S 2.1 leads in 2 out of 4 comparison categories.
Both models show comparable average scores: Laguna S 2.1 — 0.6, Laguna XS 2.1 — 0.5.
API cost is identical: input $0.10/1M, output $0.20/1M tokens.
Laguna S 2.1 supports a larger context: 1M vs 262K tokens.
Laguna S 2.1 is newer: released 7/21/2026 vs 7/2/2026.
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Frequently Asked Questions
Which is better for coding — Laguna S 2.1 or Laguna XS 2.1?
Which model is cheaper — Laguna S 2.1 or Laguna XS 2.1?
Which has a larger context window — Laguna S 2.1 or Laguna XS 2.1?
The Laguna S 2.1 and Laguna XS 2.1 comparison is updated for 2026. Data includes benchmark results, API pricing, context window size and other specifications. For more detailed information, visit the Laguna S 2.1 or Laguna XS 2.1 page. See also the complete list of AI model comparisons.