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Atria Dawn Preview vs Kimi K2 Base

Atria Dawn Preview leads the LLM Stats Score 52.3 to 13.5.

Shanghai AI Laboratory · Moonshot AI · Updated for 2026

Which is better?

Atria Dawn Preview leads the overall LLM Stats Score 52.3 to 13.5, 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

Choose Kimi K2 Base

  • you are already invested in the Moonshot AI ecosystem

At a glance

The differences that matter most.

Atria Dawn Preview
Shanghai AI Laboratory
Kimi K2 Base
Moonshot AI
Core performance indexes
LLM Stats Score
52.3
#10
13.5
#244
Reasoning
50.5
#12
12.6
#242
Coding
36.2
#22
10.6
#163
Cost, coverage & limits
Benchmark wins
—
—
Input price
— / M
— / M
Output price
— / M
— / M
Context window
—
—

Individual benchmarks

12 reported for Atria Dawn Preview · 13 for Kimi K2 Base

No common benchmarks found

Atria Dawn Preview and Kimi K2 Basedon'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

Model Size

Parameter count comparison

256.0B diff

Kimi K2 Base has 256.0B more parameters than Atria Dawn Preview, making it 34.4% larger.

Shanghai AI Laboratory
Atria Dawn Preview
744.0Bparameters
Moonshot AI
Kimi K2 Base
1.0Tparameters
744.0B
Atria Dawn Preview
1000.0B
Kimi K2 Base

License

Usage and distribution terms

Both models are licensed under MIT.

Both models share the same licensing terms, providing consistent usage rights.

Atria Dawn Preview

MIT

Open weights

Kimi K2 Base

MIT

Open weights

Release Timeline

When each model was launched

Atria Dawn Preview was released on 2026-09-11, while Kimi K2 Base was released on 2025-07-11.

Atria Dawn Preview is 14 months newer than Kimi K2 Base.

Atria Dawn Preview

Sep 11, 2026

1 weeks ago

1.2yr newer
Kimi K2 Base

Jul 11, 2025

1.2 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 K2 Base side-by-side, then vote on the output you prefer.

Atria Dawn Preview
✓ Preferred
Kimi K2 Base
Open in Playground

FAQ

Common questions about Atria Dawn Preview vs Kimi K2 Base.

Which is better, Atria Dawn Preview or Kimi K2 Base?

Atria Dawn Preview leads the LLM Stats Score 52.3 to 13.5. Atria Dawn Preview is made by Shanghai AI Laboratory and Kimi K2 Base 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 K2 Base in benchmarks?

Atria Dawn Preview scores DeepSearchQA: 96.0%, BrowseComp: 92.5%, CyberGym: 86.5%, MLE-Bench Lite: 86.2%, WideSearch: 81.9%. Kimi K2 Base scores C-Eval: 92.5%, GSM8k: 92.1%, MMLU-redux-2.0: 90.2%, MMLU: 87.8%, TriviaQA: 85.1%.

What are the main differences between Atria Dawn Preview and Kimi K2 Base?

Key differences include LLM Stats Score (52.3 vs 13.5). See the full comparison above for benchmark-by-benchmark results.

Who makes Atria Dawn Preview and Kimi K2 Base?

Atria Dawn Preview is developed by Shanghai AI Laboratory and Kimi K2 Base is developed by Moonshot AI.

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