We opensource **Qwen-7B** and **Qwen-7B-Chat** on both **🤖 ModelScope** and **🤗 Hugging Face** (Click the logos on top to the repos with codes and checkpoints). This repo includes the brief introduction to Qwen-7B, the usage guidance, and also a technical memo [link](tech_memo.md) that provides more information.
Qwen-7B is the 7B-parameter version of the large language model series, Qwen (abbr. Tongyi Qianwen), proposed by Alibaba Cloud. Qwen-7B is a Transformer-based large language model, which is pretrained on a large volume of data, including web texts, books, codes, etc. Additionally, based on the pretrained Qwen-7B, we release Qwen-7B-Chat, a large-model-based AI assistant, which is trained with alignment techniques. The features of the Qwen-7B series include:
1.**Trained with high-quality pretraining data**. We have pretrained Qwen-7B on a self-constructed large-scale high-quality dataset of over 2.2 trillion tokens. The dataset includes plain texts and codes, and it covers a wide range of domains, including general domain data and professional damain data.
2.**Strong performance**. In comparison with the models of the similar model size, we outperform the competitors on a series of benchmark datasets, which evaluates natural language understanding, mathematics, coding, etc.
3.**Better support of languages**. Our tokenizer, based on a large vocabulary of over 150K tokens, is a more efficient one compared with other tokenizers. It is friendly to many languages, and it is helpful for users to further finetune `Qwen-7B` for the extension of understanding a certain language.
4.**Support of 8K Context Length**. Both Qwen-7B and Qwen-7B-Chat supports the context length of 8K, which allows inputs with long contexts.
5.**Support of Plugins**. Qwen-7B-Chat is trained with plugin-related alignment data, and thus it is capable of using tools, including APIs, models, databases, etc., and it is capable of playing as an agent.
## News
* 2023.8.3 We release both Qwen-7B and Qwen-7B-Chat on ModelScope and Hugging Face. We also provide a technical memo for more details about the model, including training details and model performance.
## Performance
In general, Qwen-7B outperforms the baseline models of a similar model size, and even outperform larger models of around 13B parameters, on a series of benchmark datasets, e.g., MMLU, C-Eval, GSM8K, HumanEval, and WMT22, etc., which evaluate the models' capabilities on natural language understanding, mathematic problem solving, coding, etc. See the results below.
For more experimental results (detailed model performance on more benchmark datasets) and details, please refer to our techinical memo by clicking [here](techmemo-draft.md).
## Quickstart
Below, we provide simple examples to show how to use Qwen-7B with 🤖 ModelScope and 🤗 Transformers.
Before running the code, make sure you have setup the environment and installed the required packages. Make sure the pytorch version is higher than `1.12`, and then install the dependent libraries.
>>> response, history = model.chat(tokenizer, "给这个故事起一个标题", history=history)
>>> print(response)
《奋斗创业：一个年轻人的成功之路》
```
#### 🤖 ModelScope
ModelScope is an opensource platform for Model-as-a-Service (MaaS), which provides flexible and cost-effective model service to AI developers. Similarly, you can run the models with ModelScope as shown below:
With this method, it is available to load Qwen-7B in `NF4` and `Int8`, which saves you memory usage. We provide related statistics of model performance below. We find that the quantization downgrades the effectiveness slightly but significantly increases inference efficiency and reduces memory costs.
| Precision | MMLU | Memory |
| :---------: | -------: | -------: |
| BF16 | 56.7 | 16.2G |
| Int8 | 52.8 | 10.1G |
| NF4 | 48.9 | 7.4G |
## Tool Usage
Qwen-7B-Chat is specifically optimized for tool usage, including API, database, models, etc., so that users can build their own Qwen-7B-based LangChain, Agent, and Code Interpreter. In the soon-to-be-released internal evaluation benchmark for assessing tool usage capabilities, we find that Qwen-7B reaches stable performance.
For how to write and use prompts for ReAct Prompting, please refer to [the ReAct examples](examples/react_prompt.md). The use of tools can enable the model to better perform tasks.
Additionally, we provide experimental results to show its capabilities of playing as an agent. See [Hugging Face Agent](https://huggingface.co/docs/transformers/transformers_agents) for more information. Its performance on the run-mode benchmark provided by Hugging Face is as follows:
| Model | Tool Selection↑ | Tool Used↑ | Code↑ |
|-|-|-|-|
|GPT-4 | **100** | **100** | **97.41** |
|GPT-3.5 | 95.37 | 96.30 | 87.04 |
|StarCoder-15.5B | 87.04 | 87.96 | 68.89 |
| **Qwen-7B** | 90.74 | 92.59 | 74.07 |
## Long-Context Understanding
To extend the context length and break the botteneck of training sequence length, we introduce several techniques, including NTK-aware interpolation, window attention, LogN attention scaling, to extend the context length to over 8K tokens. We conduct language modeling experiments on the arXiv dataset with the PPL evaluation and find that Qwen-7B can reach outstanding performance in the scenario of long context. Results are demonstrated below:
For your reproduction of the model performance on benchmark datasets, we provide scripts for you to reproduce the results and improve your own model. Check [eval/EVALUATION.md](eval/EVALUATION.md) for more information.
## License Agreement
Researchers and developers are free to use the codes and model weights of both Qwen-7B and Qwen-7B-Chat. We also allow their commercial use. Check our license at [LICENSE](LICENSE) for more details.
## Contact Us
If you are interested to leave a message to either our research team or product team, feel free to send an email to qianwen_opensource@alibabacloud.com.
