---
title: OpenSeek-Small-v1
canonical_url: "https://www.modelscope.cn/models/BAAI/OpenSeek-Small-v1"
md_url: "https://www.modelscope.cn/models/BAAI/OpenSeek-Small-v1.md"
repository: BAAI/OpenSeek-Small-v1
last_updated: 2026-01-11
license: apache-2.0
model_type:
  - deepseek_v3
architectures:
  - DeepseekV3ForCausalLM
parameters: 1.6B
tensor_type:
  - BF16
library_name:
  - transformer
  - safetensors
  - pytorch
frameworks:
  - pytorch
inference_backends:
  - "deploy_task text/emb"
  - "sglang 0.5.2"
  - "vllm 0.9.2"
downloads: 583
stars: 1
---

# OpenSeek-Small-v1

> OpenSeek-Small-v1 - BAAI 在 ModelScope 开源的模型。OpenSeek-Small v1 Model Documentation

BAAI/OpenSeek-Small-v1 是 ModelScope 魔搭社区上的 1.6B 参数机器学习模型，采用 apache-2.0 许可，可用 deploy_task text/emb、sglang 0.5.2、vllm 0.9.2 部署。

- **Repository**: BAAI/OpenSeek-Small-v1
- **License**: apache-2.0
- **Parameters**: 1.6B
- **Inference backends**: deploy_task text/emb, sglang 0.5.2, vllm 0.9.2
- **Downloads**: 583
- **Stars**: 1
- **Last updated**: 2026-01-11

Source: https://www.modelscope.cn/models/BAAI/OpenSeek-Small-v1

---

# OpenSeek-Small v1 Model Documentation

## Overview
OpenSeek-Small-v1 is the initial production model of the OpenSeek project.
- Utilizes DeepSeek-V3-like MoE architecture.
- Comprises 1.4 billion total parameters, with 0.4 billion activated parameters.
- Trained on 720 billion tokens.
- Demonstrates superior efficiency compared to 1-billion-parameter models.

## Training Data
- 0.72TB tokens of high-quality pretraining data and the ratio for each domain is as follows:
| Name                                      | Ratio   |
|-------------------------------------------|---------|
| Nemotron-CC-high-actual-actual-high       | 1.26    |
| Nemotron-CC-high-actual-actual-low        | 0.67    |
| Nemotron-CC-high-actual-actual-mid        | 2.05    |
| Nemotron-CC-high-synthetic-distill-high   | 1.59    |
| Nemotron-CC-high-synthetic-distill-low    | 0.64    |
| Nemotron-CC-high-synthetic-distill-mid    | 2.32    |
| Nemotron-CC-high-synthetic-diverse_qa_pairs-high | 4.67    |
| Nemotron-CC-high-synthetic-diverse_qa_pairs-low  | 2.16    |
| Nemotron-CC-high-synthetic-diverse_qa_pairs-mid  | 7.58    |
| Nemotron-CC-high-synthetic-extract_knowledge-high | 6.43    |
| Nemotron-CC-high-synthetic-extract_knowledge-low  | 0.07    |
| Nemotron-CC-high-synthetic-extract_knowledge-mid  | 2.22    |
| Nemotron-CC-high-synthetic-knowledge_list-high | 1.88    |
| Nemotron-CC-high-synthetic-knowledge_list-low  | 0.74    |
| Nemotron-CC-high-synthetic-knowledge_list-mid  | 3.20    |
| Nemotron-CC-high-synthetic-wrap_medium-high | 3.89    |
| Nemotron-CC-high-synthetic-wrap_medium-low  | 0.65    |
| Nemotron-CC-high-synthetic-wrap_medium-mid  | 6.18    |
| Nemotron-CC-low-synthetic-wrap_medium-high | 0.17    |
| Nemotron-CC-low-synthetic-wrap_medium-low  | 0.30    |
| Nemotron-CC-low-synthetic-wrap_medium-mid  | 1.08    |
| Nemotron-CC-medium-actual-actual-high      | 2.20    |
| Nemotron-CC-medium-actual-actual-low       | 4.48    |
| Nemotron-CC-medium-actual-actual-mid       | 7.76    |
| arxiv                                    | 0.32    |
| books                                    | 1.98    |
| code                                     | 3.43    |
| cot_synthesis_CC                         | 9.82    |
| cot_synthesis_OpenSource                 | 0.46    |
| cot_synthesis_arxiv                      | 4.15    |
| cot_synthesis_code                       | 1.32    |
| cot_synthesis_math                       | 2.19    |
| cot_synthesis_wiki                       | 0.83    |
| math                                     | 0.83    |
| pes2o                                    | 0.31    |
| stack                                    | 0.19    |
| wiki                                     | 0.29    |
| zh_cc                                    | 9.65    |

## Wandb
Our training curves have been recorded in Weights & Biases [wandb](https://wandb.ai/openseek-team/OpenSeek-Small-v1).

## Evaluation
| Category                     | Metrics (shots)   | Llama-3.2-1B | Qwen2.5-1.5B | Qwen2.5-0.5B | OLMo-1B-0724 | OpenSeek-Small-v1 |
|------------------------------|-------------------|--------------|--------------|--------------|---------------|-------------------|
| **English-Commonsense Reasoning** | HellaSwag (5-shot)  | 0.4830       | 0.5007       | 0.4007       | 0.4909        | 0.3893            |
|                              | TruthfulQA (0-shot) | 0.3773       | 0.4663       | 0.3986       | 0.4029        | 0.3990            |
|                              | Winogrande (5-shot) | 0.6212       | 0.6448       | 0.5683       | 0.6290        | 0.5541            |
|                              | CommonsenseQA (5-shot) | 0.3120       | 0.7445       | 0.5487       | 0.1949        | 0.2048            |
|                              | PIQA (5-shot)      | 0.7514       | 0.7612       | 0.7111       | 0.7459        | 0.7203            |
|                              | OpenBookQA (5-shot) | 0.2960       | 0.3340       | 0.2720       | 0.3080        | 0.2560            |
|                              | BoolQ (5-shot)     | 0.6590       | 0.7774       | 0.6572       | 0.6508        | 0.6165            |
| **English-Problem-Solving**   | ARC Easy (5-shot)  | 0.6940       | 0.8043       | 0.6780       | 0.6111        | 0.6237            |
|                              | ARC Challenge (5-shot) | 0.3532       | 0.4846       | 0.3370       | 0.3063        | 0.3157            |
|                              | MMLU (5-shot)      | 0.3124       | 0.6165       | 0.4818       | 0.2869        | 0.2654            |
| **English-Mathematics**       | GSM8K (5-shot)     | 0.0637       | 0.6194       | 0.3495       | 0.0159        | 0.0182            |
|                              | Minerva Math (4-shot) | 0.0180       | 0.2876       | 0.1160       | 0.0182        | 0.0010            |
| **Chinese**                   | CEval (5-shot)     | 0.2779       | 0.6954       | 0.5423       | 0.2340        | 0.2422            |
|                              | CMMLU (5-shot)     | 0.2687       | 0.6882       | 0.5300       | 0.2570        | 0.2468            |
| **Average Metrics**           | **Average-English(w/o Math)** | 0.4859       | 0.6134       | 0.5053       | 0.4627        | 0.4345            |
|                              | **Average-English** | 0.4118       | 0.5868       | 0.4599       | 0.3884        | 0.3637            |
|                              | **Average-Chinese** | 0.2733       | 0.6918       | 0.5362       | 0.2455        | 0.2445            |
|                              | **Average**         | 0.3920       | 0.6018       | 0.4708       | 0.3680        | 0.3466            |
|                              | **Average(w/o Math)** | 0.4505       | 0.6265       | 0.5105       | 0.4265        | 0.4028            |

OpenSeek-Small-v1 demonstrates superior efficiency compared to 1-billion-parameter models.

- <img src="logC_vs_Metric_Average_scatter_plot.png" alt="logC_vs_Metric_Average" width="400"/>

## License
[OpenMDW 1.0](https://github.com/OpenMDW/OpenMDW/blob/main/1.0/LICENSE.openmdw)

## Usage Instructions
```python
from transformers import AutoModelForCausalLM, AutoTokenizer

model = AutoModelForCausalLM.from_pretrained("BAAI/OpenSeek-Small-v1",trust_remote_code=True)
tokenizer = AutoTokenizer.from_pretrained("BAAI/OpenSeek-Small-v1",trust_remote_code=True)

inputs = tokenizer("The future of AI is", return_tensors="pt")
outputs = model.generate(**inputs, max_length=50)
print(tokenizer.decode(outputs[0]))
```

# Acknowledgements

This work is supported by the National Science and Technology Major Project (No. 2022ZD0116314).

本项目受新一代人工智能国家科技重大专项（No. 2022ZD0116314）支持。
