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Atria Dawn Preview vs Laguna XS 2.1

Atria Dawn Preview leads the LLM Stats Score 51.9 to 24.4.

Shanghai AI Laboratory · Poolside · Updated for 2026

Which is better?

Atria Dawn Preview leads the overall LLM Stats Score 51.9 to 24.4, ranking #10 overall.

In the 1 individual benchmarks reported for both models, Atria Dawn Preview wins 1; 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 Atria Dawn Preview

  • overall performance matters — it scores 51.9 and ranks #10 on LLM Stats
  • your work emphasizes reasoning and coding — it leads those capability indexes
  • you value its reported benchmark strengths — it wins 1 of 1 exact shared results
  • you want the most recent training data — it shipped Sep 2026

Choose Laguna XS 2.1

  • you want predictable pricing at $0.10/M input and $0.20/M output

At a glance

The differences that matter most.

Atria Dawn Preview
Shanghai AI Laboratory
Laguna XS 2.1
Poolside
Core performance indexes
LLM Stats Score
51.9
#10
24.4
#166
Reasoning
50.1
#12
24.4
#160
Coding
35.6
#29
14.7
#135
Agents
38.2
#10
2.7
#167
Cost, coverage & limits
Benchmark wins
1 of 1
0 of 1
Input price
— / M
$0.10 / M
Output price
— / M
$0.20 / M
Context window
—
262,144

Individual benchmarks

12 reported for Atria Dawn Preview · 4 for Laguna XS 2.1

1 shared

Atria Dawn Preview outperforms in 1 benchmarks (SWE-Bench Pro), while Laguna XS 2.1 is better at 0 benchmarks.

Atria Dawn Preview significantly outperforms across most benchmarks.

Tue Sep 22 2026 • llm-stats.com

Human preference

Blind head-to-head votes and playground preference scores

Model Size

Parameter count comparison

711.0B diff

Atria Dawn Preview has 711.0B more parameters than Laguna XS 2.1, making it 2154.5% larger.

Shanghai AI Laboratory
Atria Dawn Preview
744.0Bparameters
Poolside
Laguna XS 2.1
33.0Bparameters
744.0B
Atria Dawn Preview
33.0B
Laguna XS 2.1

Context Window

Maximum input and output token capacity

Only Laguna XS 2.1 specifies input context (262,144 tokens).

Shanghai AI Laboratory
Atria Dawn Preview
Input- tokens
Output- tokens
Poolside
Laguna XS 2.1
Input262,144 tokens
Output- tokens
Tue Sep 22 2026 • llm-stats.com

License

Usage and distribution terms

Atria Dawn Preview is licensed under MIT, while Laguna XS 2.1 uses OpenMDW License v1.1.

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

Atria Dawn Preview

MIT

Open weights

Laguna XS 2.1

OpenMDW License v1.1

Open weights

Release Timeline

When each model was launched

Atria Dawn Preview was released on 2026-09-11, while Laguna XS 2.1 was released on 2026-07-02.

Atria Dawn Preview is 2 months newer than Laguna XS 2.1.

Atria Dawn Preview

Sep 11, 2026

1 weeks ago

2mo newer
Laguna XS 2.1

Jul 2, 2026

2 months ago

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 Atria Dawn Preview and Laguna XS 2.1 side-by-side, then vote on the output you prefer.

Atria Dawn Preview
✓ Preferred
Laguna XS 2.1
Open in Playground

FAQ

Common questions about Atria Dawn Preview vs Laguna XS 2.1.

Which is better, Atria Dawn Preview or Laguna XS 2.1?

Atria Dawn Preview leads the LLM Stats Score 51.9 to 24.4. Atria Dawn Preview is made by Shanghai AI Laboratory and Laguna XS 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 Atria Dawn Preview compare to Laguna XS 2.1 in benchmarks?

Atria Dawn Preview scores DeepSearchQA: 96.0%, BrowseComp: 92.5%, CyberGym: 86.5%, MLE-Bench Lite: 86.2%, WideSearch: 81.9%. Laguna XS 2.1 scores SWE-Bench Verified: 70.9%, SWE-bench Multilingual: 63.1%, SWE-Bench Pro: 47.6%, Terminal-Bench 2.0: 37.5%.

What are the context window sizes for Atria Dawn Preview and Laguna XS 2.1?

Atria Dawn Preview supports an unknown number of tokens and Laguna XS 2.1 supports 262K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Atria Dawn Preview and Laguna XS 2.1?

Key differences include LLM Stats Score (51.9 vs 24.4), licensing (MIT vs OpenMDW License v1.1). See the full comparison above for benchmark-by-benchmark results.

Who makes Atria Dawn Preview and Laguna XS 2.1?

Atria Dawn Preview is developed by Shanghai AI Laboratory and Laguna XS 2.1 is developed by Poolside.

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