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Hy3 vs Laguna S 2.1

Hy3 and Laguna S 2.1 are closely matched at 42.9 and 41.4 on the LLM Stats Score.

Tencent · Poolside · Updated for 2026

Which is better?

Hy3 and Laguna S 2.1 are closely matched on the overall LLM Stats Score at 42.9 and 41.4.

In the 4 individual benchmarks reported for both models, Laguna S 2.1 wins 3; this is a narrower head-to-head signal than the composite indexes.

Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.

Choose Hy3

  • you are already invested in the Tencent ecosystem

Choose Laguna S 2.1

  • you value its reported benchmark strengths — it wins 3 of 4 exact shared results
  • you want the most recent training data — it shipped Jul 2026

At a glance

The differences that matter most.

Hy3
Tencent
Laguna S 2.1
Poolside
Core performance indexes
LLM Stats Score
42.9
#39
41.4
#43
Reasoning
42.9
#37
41.5
#40
Coding
35.0
#27
33.1
#37
Agents
28.2
#36
25.7
#43
Cost, coverage & limits
Benchmark wins
1 of 4
3 of 4
Input price
— / M
$0.10 / M
Output price
— / M
$0.20 / M
Context window
—
1,048,576

Capability indexes

Additional strengths measured across groups of related public benchmarks

1 shared
Index
Hy3
Laguna S 2.1
Tool use
23.2#39
18.9#56
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

31 reported for Hy3 · 6 for Laguna S 2.1

4 shared

Hy3 outperforms in 1 benchmarks (Terminal-Bench 2.1), while Laguna S 2.1 is better at 3 benchmarks (SWE-bench Multilingual, SWE-Bench Pro, Toolathlon).

Laguna S 2.1 shows notably better performance in the majority of benchmarks.

Fri Aug 28 2026 • llm-stats.com

Human preference

Blind head-to-head votes and playground preference scores

Model Size

Parameter count comparison

177.0B diff

Hy3 has 177.0B more parameters than Laguna S 2.1, making it 150.0% larger.

Tencent
Hy3
295.0Bparameters
Poolside
Laguna S 2.1
118.0Bparameters
295.0B
Hy3
118.0B
Laguna S 2.1

Context Window

Maximum input and output token capacity

Only Laguna S 2.1 specifies input context (1,048,576 tokens).

Tencent
Hy3
Input- tokens
Output- tokens
Poolside
Laguna S 2.1
Input1,048,576 tokens
Output- tokens
Fri Aug 28 2026 • llm-stats.com

License

Usage and distribution terms

Hy3 is licensed under Apache 2.0, while Laguna S 2.1 uses OpenMDW License v1.1.

License differences may affect how you can use these models in commercial or open-source projects.

Hy3

Apache 2.0

Open weights

Laguna S 2.1

OpenMDW License v1.1

Open weights

Release Timeline

When each model was launched

Hy3 was released on 2026-07-06, while Laguna S 2.1 was released on 2026-07-21.

Laguna S 2.1 is 1 month newer than Hy3.

Hy3

Jul 6, 2026

1 months ago

Laguna S 2.1

Jul 21, 2026

1 months ago

2w newer

Knowledge Cutoff

When training data ends

Neither model specifies a knowledge cutoff date.

Unable to compare the recency of their training data.

No cutoff dates available

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Judge for yourself.

Run your own prompts against Hy3 and Laguna S 2.1 side-by-side, then vote on the output you prefer.

Hy3
✓ Preferred
Laguna S 2.1
Open in Playground

FAQ

Common questions about Hy3 vs Laguna S 2.1.

Which is better, Hy3 or Laguna S 2.1?

Hy3 and Laguna S 2.1 are closely matched on the LLM Stats Score at 42.9 and 41.4. Hy3 is made by Tencent and Laguna S 2.1 is made by Poolside. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does Hy3 compare to Laguna S 2.1 in benchmarks?

Hy3 scores DeepSearchQA: 91.0%, GPQA: 90.4%, IMO-AnswerBench: 90.0%, BrowseComp: 84.2%, MCP Atlas: 79.1%. Laguna S 2.1 scores SWE-bench Multilingual: 78.5%, Terminal-Bench 2.1: 70.2%, SWE-Bench Pro: 59.4%, Toolathlon: 49.7%, SWE Atlas - Codebase QnA: 46.2%.

What are the context window sizes for Hy3 and Laguna S 2.1?

Hy3 supports an unknown number of tokens and Laguna S 2.1 supports 1.0M tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Hy3 and Laguna S 2.1?

Key differences include LLM Stats Score (42.9 vs 41.4), licensing (Apache 2.0 vs OpenMDW License v1.1). See the full comparison above for benchmark-by-benchmark results.

Who makes Hy3 and Laguna S 2.1?

Hy3 is developed by Tencent and Laguna S 2.1 is developed by Poolside.

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