Atria Dawn Preview vs GPT-6 Astra: Specs & Benchmark Comparison

Atria Dawn Preview is developed by Shanghai AI Laboratory, while GPT-6 Astra comes from OpenAI. Both were released in September 2026. Atria Dawn Preview has a published size of about 744 billion parameters; OpenAI has not disclosed the parameter count of GPT-6 Astra.

The two models share 2 published benchmarks. Atria Dawn Preview leads on 2 of them. The widest gaps are on AutomationBench, where Atria Dawn Preview scores 53.8% against 41.4%; BrowseComp, where Atria Dawn Preview scores 92.5% against 91.5%. Averaged across everything we track, Atria Dawn Preview sits at 72.7% and GPT-6 Astra at 74.4%.

GPT-6 Astra is available through an API at $10 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.

CharacteristicAtria Dawn PreviewGPT-6 Astra
CompanyShanghai AI LaboratoryOpenAI
Release DateSeptember 11, 2026September 4, 2026
Parameters744B
MultimodalNoYes
Context (input)1.1M
Context (output)128K
Input Price / 1M$10.00
Output Price / 1M$50.00
Average Score72.7%74.4%
Benchmarks
AutomationBench53.8%41.4%
BrowseComp92.5%91.5%

Visual Benchmark Comparison

Atria Dawn Preview
GPT-6 Astra
AutomationBench0.5 vs 0.4
0.5
0.4
BrowseComp0.9 vs 0.9
0.9
0.9

Verdict

Both models show equal results — the choice depends on your specific use case.

Overall Performance

Both models show comparable average scores: Atria Dawn Preview — 0.7, GPT-6 Astra — 0.7.

Recency

Both models were released around the same time: 9/11/2026 and 9/4/2026.

More About These Models

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Frequently Asked Questions

Which is better for coding — Atria Dawn Preview or GPT-6 Astra?
Direct comparison on the SWE-Bench benchmark is not available. We recommend reviewing other metrics on the comparison page.
Which model is cheaper — Atria Dawn Preview or GPT-6 Astra?
API pricing data is available on the individual model pages.
Which has a larger context window — Atria Dawn Preview or GPT-6 Astra?
Context window data is available on the individual model pages.

The Atria Dawn Preview and GPT-6 Astra 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 GPT-6 Astra page. See also the complete list of AI model comparisons.