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Atria Dawn Preview vs Kimi-k1.5

Atria Dawn Preview leads the LLM Stats Score 52.3 to 17.2.

Shanghai AI Laboratory · Moonshot AI · Updated for 2026

Which is better?

Atria Dawn Preview leads the overall LLM Stats Score 52.3 to 17.2, 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 — 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 Kimi-k1.5

  • you are already invested in the Moonshot AI ecosystem

At a glance

The differences that matter most.

Atria Dawn Preview
Shanghai AI Laboratory
Kimi-k1.5
Moonshot AI
Core performance indexes
LLM Stats Score
52.3
#10
17.2
#218
Reasoning
50.5
#12
16.4
#215
Cost, coverage & limits
Benchmark wins
—
—
Input price
— / M
— / M
Output price
— / M
— / M
Context window
—
—

Individual benchmarks

12 reported for Atria Dawn Preview · 9 for Kimi-k1.5

No common benchmarks found

Atria Dawn Preview and Kimi-k1.5don'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

Input capabilities

Documented input modalities across available providers

Kimi-k1.5 supports multimodal inputs, whereas Atria Dawn Preview does not.

Kimi-k1.5 can handle both text and other forms of data like images, making it suitable for multimodal applications.

Atria Dawn Preview

Text
Images
Audio
Video

Kimi-k1.5

Text
Images
Audio
Video

License

Usage and distribution terms

Atria Dawn Preview is licensed under MIT, while Kimi-k1.5 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

Kimi-k1.5

Proprietary

Closed source

Release Timeline

When each model was launched

Atria Dawn Preview was released on 2026-09-11, while Kimi-k1.5 was released on 2025-01-20.

Atria Dawn Preview is 20 months newer than Kimi-k1.5.

Atria Dawn Preview

Sep 11, 2026

4 days ago

1.6yr newer
Kimi-k1.5

Jan 20, 2025

1.7 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 Kimi-k1.5 side-by-side, then vote on the output you prefer.

Atria Dawn Preview
✓ Preferred
Kimi-k1.5
Open in Playground

FAQ

Common questions about Atria Dawn Preview vs Kimi-k1.5.

Which is better, Atria Dawn Preview or Kimi-k1.5?

Atria Dawn Preview leads the LLM Stats Score 52.3 to 17.2. Atria Dawn Preview is made by Shanghai AI Laboratory and Kimi-k1.5 is made by Moonshot AI. 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 Kimi-k1.5 in benchmarks?

Atria Dawn Preview scores DeepSearchQA: 96.0%, BrowseComp: 92.5%, CyberGym: 86.5%, MLE-Bench Lite: 86.2%, WideSearch: 81.9%. Kimi-k1.5 scores MATH-500: 96.2%, CLUEWSC: 91.4%, C-Eval: 88.3%, MMLU: 87.4%, IFEval: 87.2%.

What are the main differences between Atria Dawn Preview and Kimi-k1.5?

Key differences include LLM Stats Score (52.3 vs 17.2), multimodal support (no vs yes), licensing (MIT vs Proprietary). See the full comparison above for benchmark-by-benchmark results.

Who makes Atria Dawn Preview and Kimi-k1.5?

Atria Dawn Preview is developed by Shanghai AI Laboratory and Kimi-k1.5 is developed by Moonshot AI.

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