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Atria Dawn Preview vs Mercury 2

Atria Dawn Preview leads the LLM Stats Score 52.3 to 23.6.

Shanghai AI Laboratory · Inception · Updated for 2026

Which is better?

Atria Dawn Preview leads the overall LLM Stats Score 52.3 to 23.6, ranking #10 overall.

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

Choose Atria Dawn Preview

  • overall performance matters — it scores 52.3 and ranks #10 on LLM Stats
  • your work emphasizes reasoning and coding — it leads those capability indexes
  • you want the most recent training data — it shipped Sep 2026
  • you need open weights you can self-host or fine-tune

Choose Mercury 2

  • you want predictable pricing at $0.25/M input and $0.75/M output

At a glance

The differences that matter most.

Atria Dawn Preview
Shanghai AI Laboratory
Mercury 2
Inception
Core performance indexes
LLM Stats Score
52.3
#10
23.6
#173
Reasoning
50.5
#12
22.6
#168
Coding
36.2
#22
12.6
#143
Cost, coverage & limits
Benchmark wins
—
—
Input price
— / M
$0.25 / M
Output price
— / M
$0.75 / M
Context window
—
128,000

Individual benchmarks

12 reported for Atria Dawn Preview · 6 for Mercury 2

No common benchmarks found

Atria Dawn Preview and Mercury 2don't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.

Human preference

Blind head-to-head votes and playground preference scores

Context Window

Maximum input and output token capacity

Only Mercury 2 specifies input context (128,000 tokens). Only Mercury 2 specifies output context (8,192 tokens).

Shanghai AI Laboratory
Atria Dawn Preview
Input- tokens
Output- tokens
Inception
Mercury 2
Input128,000 tokens
Output8,192 tokens
Sun Sep 20 2026 • llm-stats.com

License

Usage and distribution terms

Atria Dawn Preview is licensed under MIT, while Mercury 2 uses a proprietary license.

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

Atria Dawn Preview

MIT

Open weights

Mercury 2

Proprietary

Closed source

Release Timeline

When each model was launched

Atria Dawn Preview was released on 2026-09-11, while Mercury 2 was released on 2026-02-24.

Atria Dawn Preview is 7 months newer than Mercury 2.

Atria Dawn Preview

Sep 11, 2026

1 weeks ago

6mo newer
Mercury 2

Feb 24, 2026

6 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 Mercury 2 side-by-side, then vote on the output you prefer.

Atria Dawn Preview
✓ Preferred
Mercury 2
Open in Playground

FAQ

Common questions about Atria Dawn Preview vs Mercury 2.

Which is better, Atria Dawn Preview or Mercury 2?

Atria Dawn Preview leads the LLM Stats Score 52.3 to 23.6. Atria Dawn Preview is made by Shanghai AI Laboratory and Mercury 2 is made by Inception. 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 Mercury 2 in benchmarks?

Atria Dawn Preview scores DeepSearchQA: 96.0%, BrowseComp: 92.5%, CyberGym: 86.5%, MLE-Bench Lite: 86.2%, WideSearch: 81.9%. Mercury 2 scores AIME 2025: 91.1%, GPQA: 74.0%, IFBench: 71.0%, LiveCodeBench: 67.0%, Tau2 Airline: 53.0%.

What are the context window sizes for Atria Dawn Preview and Mercury 2?

Atria Dawn Preview supports an unknown number of tokens and Mercury 2 supports 128K 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 Mercury 2?

Key differences include LLM Stats Score (52.3 vs 23.6), licensing (MIT vs Proprietary). See the full comparison above for benchmark-by-benchmark results.

Who makes Atria Dawn Preview and Mercury 2?

Atria Dawn Preview is developed by Shanghai AI Laboratory and Mercury 2 is developed by Inception.

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