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Atria Dawn Preview vs o1-preview

Atria Dawn Preview leads the LLM Stats Score 52.3 to 16.6.

Shanghai AI Laboratory · OpenAI · Updated for 2026

Which is better?

Atria Dawn Preview leads the overall LLM Stats Score 52.3 to 16.6, 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 o1-preview

  • you want predictable pricing at $15.00/M input and $60.00/M output

At a glance

The differences that matter most.

Atria Dawn Preview
Shanghai AI Laboratory
o1-preview
OpenAI
Core performance indexes
LLM Stats Score
52.3
#10
16.6
#220
Reasoning
50.5
#12
16.8
#213
Coding
36.2
#22
-3.2
#252
Cost, coverage & limits
Benchmark wins
—
—
Input price
— / M
$15.00 / M
Output price
— / M
$60.00 / M
Context window
—
128,000

Individual benchmarks

12 reported for Atria Dawn Preview · 8 for o1-preview

No common benchmarks found

Atria Dawn Preview and o1-previewdon'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 o1-preview specifies input context (128,000 tokens). Only o1-preview specifies output context (32,768 tokens).

Shanghai AI Laboratory
Atria Dawn Preview
Input- tokens
Output- tokens
OpenAI
o1-preview
Input128,000 tokens
Output32,768 tokens
Tue Sep 15 2026 • llm-stats.com

License

Usage and distribution terms

Atria Dawn Preview is licensed under MIT, while o1-preview 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

o1-preview

Proprietary

Closed source

Release Timeline

When each model was launched

Atria Dawn Preview was released on 2026-09-11, while o1-preview was released on 2024-09-12.

Atria Dawn Preview is 24 months newer than o1-preview.

Atria Dawn Preview

Sep 11, 2026

4 days ago

2.0yr newer
o1-preview

Sep 12, 2024

2.0 years 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 o1-preview side-by-side, then vote on the output you prefer.

Atria Dawn Preview
✓ Preferred
o1-preview
Open in Playground

FAQ

Common questions about Atria Dawn Preview vs o1-preview.

Which is better, Atria Dawn Preview or o1-preview?

Atria Dawn Preview leads the LLM Stats Score 52.3 to 16.6. Atria Dawn Preview is made by Shanghai AI Laboratory and o1-preview is made by OpenAI. 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 o1-preview in benchmarks?

Atria Dawn Preview scores DeepSearchQA: 96.0%, BrowseComp: 92.5%, CyberGym: 86.5%, MLE-Bench Lite: 86.2%, WideSearch: 81.9%. o1-preview scores MGSM: 90.8%, MMLU: 90.8%, MATH: 85.5%, GPQA: 73.3%, LiveBench: 52.3%.

What are the context window sizes for Atria Dawn Preview and o1-preview?

Atria Dawn Preview supports an unknown number of tokens and o1-preview 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 o1-preview?

Key differences include LLM Stats Score (52.3 vs 16.6), licensing (MIT vs Proprietary). See the full comparison above for benchmark-by-benchmark results.

Who makes Atria Dawn Preview and o1-preview?

Atria Dawn Preview is developed by Shanghai AI Laboratory and o1-preview is developed by OpenAI.

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