Atria Dawn Preview vs Muse Spark 1.3: Specs & Benchmark Comparison
Atria Dawn Preview is developed by Shanghai AI Laboratory, while Muse Spark 1.3 comes from Meta. Both were released in September 2026. Atria Dawn Preview has a published size of about 744 billion parameters; Meta has not disclosed the parameter count of Muse Spark 1.3.
The two models share 4 published benchmarks. They split them evenly, 2 to 2. The widest gaps are on Terminal-Bench 2.1, where Muse Spark 1.3 scores 88.8% against 78.3%; DeepSearchQA, where Atria Dawn Preview scores 96.0% against 89.4%. Averaged across everything we track, Atria Dawn Preview sits at 72.7% and Muse Spark 1.3 at 73.4%.
Muse Spark 1.3 is available through an API at $1.25 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 | Muse Spark 1.3 |
|---|---|---|
| Company | Shanghai AI Laboratory | Meta |
| Release Date | September 11, 2026 | September 2, 2026 |
| Parameters | 744B | — |
| Multimodal | No | Yes |
| Context (input) | — | 1.0M |
| Context (output) | — | 944K |
| Input Price / 1M | — | $1.25 |
| Output Price / 1M | — | $4.25 |
| Average Score | 72.7% | 73.4% |
| Benchmarks | ||
| Terminal-Bench 2.1 | 78.3% | 88.8% |
| DeepSearchQA | 96.0% | 89.4% |
| GDPval-AA | 52.8% | 58.5% |
| AutomationBench | 53.8% | 49.4% |
Visual Benchmark Comparison
Verdict
Both models show equal results — the choice depends on your specific use case.
Both models show comparable average scores: Atria Dawn Preview — 0.7, Muse Spark 1.3 — 0.7.
Both models were released around the same time: 9/11/2026 and 9/2/2026.
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Frequently Asked Questions
Which is better for coding — Atria Dawn Preview or Muse Spark 1.3?
Which model is cheaper — Atria Dawn Preview or Muse Spark 1.3?
Which has a larger context window — Atria Dawn Preview or Muse Spark 1.3?
The Atria Dawn Preview and Muse Spark 1.3 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 Muse Spark 1.3 page. See also the complete list of AI model comparisons.