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Atria Dawn Preview vs Kimi K3

Atria Dawn Preview and Kimi K3 are closely matched at 52.3 and 53.0 on the LLM Stats Score.

Shanghai AI Laboratory · Moonshot AI · Updated for 2026

Which is better?

Atria Dawn Preview and Kimi K3 are closely matched on the overall LLM Stats Score at 52.3 and 53.0.

In the 4 individual benchmarks reported for both models, Atria Dawn Preview 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 Atria Dawn Preview

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

Choose Kimi K3

  • you want predictable pricing at $2.85/M input and $14.25/M output

At a glance

The differences that matter most.

Atria Dawn Preview
Shanghai AI Laboratory
Kimi K3
Moonshot AI
Core performance indexes
LLM Stats Score
52.3
#10
53.0
#8
Reasoning
50.5
#12
51.6
#9
Coding
36.2
#22
43.3
#6
Agents
38.8
#10
39.2
#9
Cost, coverage & limits
Benchmark wins
3 of 4
1 of 4
Input price
— / M
$2.85 / M
Output price
— / M
$14.25 / M
Context window
—
1,048,576

Capability indexes

Additional strengths measured across groups of related public benchmarks

2 shared
Index
Atria Dawn Preview
Kimi K3
Tool use
31.1#12
33.8#3
Research
36.1#1
33.0#2
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

12 reported for Atria Dawn Preview · 31 for Kimi K3

4 shared

Atria Dawn Preview outperforms in 3 benchmarks (AutomationBench, BrowseComp, DeepSearchQA), while Kimi K3 is better at 1 benchmark (Terminal-Bench 2.1).

Atria Dawn Preview shows notably better performance in the majority of benchmarks.

Tue Sep 15 2026 • llm-stats.com

Human preference

Blind head-to-head votes and playground preference scores

Model Size

Parameter count comparison

2056.0B diff

Kimi K3 has 2056.0B more parameters than Atria Dawn Preview, making it 276.3% larger.

Shanghai AI Laboratory
Atria Dawn Preview
744.0Bparameters
Moonshot AI
Kimi K3
2.8Tparameters
744.0B
Atria Dawn Preview
2800.0B
Kimi K3

Context Window

Maximum input and output token capacity

Only Kimi K3 specifies input context (1,048,576 tokens). Only Kimi K3 specifies output context (1,048,576 tokens).

Shanghai AI Laboratory
Atria Dawn Preview
Input- tokens
Output- tokens
Moonshot AI
Kimi K3
Input1,048,576 tokens
Output1,048,576 tokens
Tue Sep 15 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Kimi K3 supports multimodal inputs, whereas Atria Dawn Preview does not.

Kimi K3 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 K3

Text
Images
Audio
Video

License

Usage and distribution terms

Atria Dawn Preview is licensed under MIT, while Kimi K3 uses Kimi K3 License.

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

Atria Dawn Preview

MIT

Open weights

Kimi K3

Kimi K3 License

Open weights

Release Timeline

When each model was launched

Atria Dawn Preview was released on 2026-09-11, while Kimi K3 was released on 2026-07-16.

Atria Dawn Preview is 2 months newer than Kimi K3.

Atria Dawn Preview

Sep 11, 2026

4 days ago

1mo newer
Kimi K3

Jul 16, 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 Kimi K3 side-by-side, then vote on the output you prefer.

Atria Dawn Preview
✓ Preferred
Kimi K3
Open in Playground

FAQ

Common questions about Atria Dawn Preview vs Kimi K3.

Which is better, Atria Dawn Preview or Kimi K3?

Atria Dawn Preview and Kimi K3 are closely matched on the LLM Stats Score at 52.3 and 53.0. Atria Dawn Preview is made by Shanghai AI Laboratory and Kimi K3 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 K3 in benchmarks?

Atria Dawn Preview scores DeepSearchQA: 96.0%, BrowseComp: 92.5%, CyberGym: 86.5%, MLE-Bench Lite: 86.2%, WideSearch: 81.9%. Kimi K3 scores MathVision: 97.8%, DeepSearchQA: 95.0%, GPQA: 93.5%, CharXiv-R: 91.3%, BrowseComp: 91.2%.

What are the context window sizes for Atria Dawn Preview and Kimi K3?

Atria Dawn Preview supports an unknown number of tokens and Kimi K3 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 Atria Dawn Preview and Kimi K3?

Key differences include LLM Stats Score (52.3 vs 53.0), multimodal support (no vs yes), licensing (MIT vs Kimi K3 License). See the full comparison above for benchmark-by-benchmark results.

Who makes Atria Dawn Preview and Kimi K3?

Atria Dawn Preview is developed by Shanghai AI Laboratory and Kimi K3 is developed by Moonshot AI.

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