Atria Dawn Preview vs Kimi K3: Specs & Benchmark Comparison
Atria Dawn Preview is developed by Shanghai AI Laboratory, while Kimi K3 comes from Moonshot AI. Kimi K3 was released in July 2026, and Atria Dawn Preview followed 2 months later in September 2026. Kimi K3 is the larger model at roughly 2.8 trillion parameters, against 744 billion for Atria Dawn Preview.
The two models share 4 published benchmarks. Atria Dawn Preview leads on 3 of them, Kimi K3 on 1. The widest gaps are on AutomationBench, where Atria Dawn Preview scores 53.8% against 30.8%; Terminal-Bench 2.1, where Kimi K3 scores 88.3% against 78.3%. Averaged across everything we track, Atria Dawn Preview sits at 72.7% and Kimi K3 at 67.8%.
Kimi K3 is available through an API at $3 per million input tokens with a 1M-token context window. We do not track a hosted API for Atria Dawn Preview, so pricing and context cannot be compared directly.
| Characteristic | Atria Dawn Preview | Kimi K3 |
|---|---|---|
| Company | Shanghai AI Laboratory | Moonshot AI |
| Release Date | September 11, 2026 | July 16, 2026 |
| Parameters | 744B | 2.8T |
| Multimodal | No | Yes |
| Context (input) | — | 1.0M |
| Context (output) | — | 1.0M |
| Input Price / 1M | — | $3.00 |
| Output Price / 1M | — | $15.00 |
| Average Score | 72.7% | 67.8% |
| Benchmarks | ||
| AutomationBench | 53.8% | 30.8% |
| Terminal-Bench 2.1 | 78.3% | 88.3% |
| BrowseComp | 92.5% | 91.2% |
| DeepSearchQA | 96.0% | 95.0% |
Visual Benchmark Comparison
Verdict
Atria Dawn Preview leads in 1 out of 2 comparison categories.
Both models show comparable average scores: Atria Dawn Preview — 0.7, Kimi K3 — 0.7.
Atria Dawn Preview is newer: released 9/11/2026 vs 7/16/2026.
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Frequently Asked Questions
Which is better for coding — Atria Dawn Preview or Kimi K3?
Which model is cheaper — Atria Dawn Preview or Kimi K3?
Which has a larger context window — Atria Dawn Preview or Kimi K3?
The Atria Dawn Preview and Kimi K3 comparison is updated for 2026. Data includes benchmark results, API pricing, context window size and other specifications. For more detailed information, visit the Atria Dawn Preview or Kimi K3 page. See also the complete list of AI model comparisons.