Hy3 vs Laguna S 2.1: Specs & Benchmark Comparison
Hy3 is developed by Tencent, while Laguna S 2.1 comes from Poolside. Both were released in July 2026. Hy3 is the larger model at roughly 295 billion parameters, against 118 billion for Laguna S 2.1.
The two models share 4 published benchmarks. Laguna S 2.1 leads on 3 of them, Hy3 on 1. The widest gaps are on SWE-bench Multilingual, where Laguna S 2.1 scores 78.5% against 75.8%; SWE-Bench Pro, where Laguna S 2.1 scores 59.4% against 57.9%. Averaged across everything we track, Hy3 sits at 57.1% and Laguna S 2.1 at 57.4%.
Laguna S 2.1 is available through an API at $0.10 per million input tokens with a 1M-token context window. We do not track a hosted API for Hy3, so pricing and context cannot be compared directly.
| Characteristic | Hy3 | Laguna S 2.1 |
|---|---|---|
| Company | Tencent | Poolside |
| Release Date | July 6, 2026 | July 21, 2026 |
| Parameters | 295B | 118B |
| Multimodal | No | No |
| Context (input) | — | 1.0M |
| Input Price / 1M | — | $0.10 |
| Output Price / 1M | — | $0.20 |
| Average Score | 57.1% | 57.4% |
| Benchmarks | ||
| SWE-bench Multilingual | 75.8% | 78.5% |
| SWE-Bench Pro | 57.9% | 59.4% |
| Terminal-Bench 2.1 | 71.7% | 70.2% |
| Toolathlon | 48.5% | 49.7% |
Visual Benchmark Comparison
Verdict
Laguna S 2.1 leads in 1 out of 2 comparison categories.
Both models show comparable average scores: Hy3 — 0.6, Laguna S 2.1 — 0.6.
Laguna S 2.1 is newer: released 7/21/2026 vs 7/6/2026.
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Frequently Asked Questions
Which is better for coding — Hy3 or Laguna S 2.1?
Which model is cheaper — Hy3 or Laguna S 2.1?
Which has a larger context window — Hy3 or Laguna S 2.1?
The Hy3 and Laguna S 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 Hy3 or Laguna S 2.1 page. See also the complete list of AI model comparisons.