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Atria Dawn Preview vs GPT OSS 120B

Atria Dawn Preview leads the LLM Stats Score 52.3 to 28.8.

Shanghai AI Laboratory · OpenAI · Updated for 2026

Which is better?

Atria Dawn Preview leads the overall LLM Stats Score 52.3 to 28.8, 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 GPT OSS 120B

  • you want predictable pricing at $0.04/M input and $0.17/M output

At a glance

The differences that matter most.

Atria Dawn Preview
Shanghai AI Laboratory
GPT OSS 120B
OpenAI
Core performance indexes
LLM Stats Score
52.3
#10
28.8
#132
Reasoning
50.5
#12
23.0
#166
Cost, coverage & limits
Benchmark wins
—
—
Input price
— / M
$0.04 / M
Output price
— / M
$0.17 / M
Context window
—
131,072

Individual benchmarks

12 reported for Atria Dawn Preview · 7 for GPT OSS 120B

No common benchmarks found

Atria Dawn Preview and GPT OSS 120Bdon'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

627.2B diff

Atria Dawn Preview has 627.2B more parameters than GPT OSS 120B, making it 537.0% larger.

Shanghai AI Laboratory
Atria Dawn Preview
744.0Bparameters
OpenAI
GPT OSS 120B
116.8Bparameters
744.0B
Atria Dawn Preview
116.8B
GPT OSS 120B

Context Window

Maximum input and output token capacity

Only GPT OSS 120B specifies input context (131,072 tokens). Only GPT OSS 120B specifies output context (131,072 tokens).

Shanghai AI Laboratory
Atria Dawn Preview
Input- tokens
Output- tokens
OpenAI
GPT OSS 120B
Input131,072 tokens
Output131,072 tokens
Sun Sep 20 2026 • llm-stats.com

License

Usage and distribution terms

Atria Dawn Preview is licensed under MIT, while GPT OSS 120B uses Apache 2.0.

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

Atria Dawn Preview

MIT

Open weights

GPT OSS 120B

Apache 2.0

Open weights

Release Timeline

When each model was launched

Atria Dawn Preview was released on 2026-09-11, while GPT OSS 120B was released on 2025-08-05.

Atria Dawn Preview is 13 months newer than GPT OSS 120B.

Atria Dawn Preview

Sep 11, 2026

1 weeks ago

1.1yr newer
GPT OSS 120B

Aug 5, 2025

1.1 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 GPT OSS 120B side-by-side, then vote on the output you prefer.

Atria Dawn Preview
✓ Preferred
GPT OSS 120B
Open in Playground

FAQ

Common questions about Atria Dawn Preview vs GPT OSS 120B.

Which is better, Atria Dawn Preview or GPT OSS 120B?

Atria Dawn Preview leads the LLM Stats Score 52.3 to 28.8. Atria Dawn Preview is made by Shanghai AI Laboratory and GPT OSS 120B is made by OpenAI. 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 GPT OSS 120B in benchmarks?

Atria Dawn Preview scores DeepSearchQA: 96.0%, BrowseComp: 92.5%, CyberGym: 86.5%, MLE-Bench Lite: 86.2%, WideSearch: 81.9%. GPT OSS 120B scores MMLU: 90.0%, CodeForces: 82.1%, GPQA: 80.1%, TAU-bench Retail: 67.8%, HealthBench: 57.6%.

What are the context window sizes for Atria Dawn Preview and GPT OSS 120B?

Atria Dawn Preview supports an unknown number of tokens and GPT OSS 120B supports 131K 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 GPT OSS 120B?

Key differences include LLM Stats Score (52.3 vs 28.8), licensing (MIT vs Apache 2.0). See the full comparison above for benchmark-by-benchmark results.

Who makes Atria Dawn Preview and GPT OSS 120B?

Atria Dawn Preview is developed by Shanghai AI Laboratory and GPT OSS 120B is developed by OpenAI.

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