Introduction

Qwen1.5-72B-Chat is the beta version of Qwen2, a transformer-based decoder-only language model developed by researchers from Alibaba Cloud. It boasts significant improvements over its predecessor Qwen, including enhanced performance in aligning with human preference for chat models, multilingual support, and stable support for a 32K context length.

The Model

Qwen1.5-72B-Chat is part of a series of language models that includes decoder models of varying sizes. This is a finetuned version of the base model Qwen1.5-72B, it is recommended for all conversational and instruction-following tasks. Same as the other models in the series, it utilizes the Transformer architecture with features such as SwiGLU activation, attention QKV bias, group query attention, and a mixture of sliding window attention and full attention. The model also features an improved tokenizer adaptive to multiple natural languages and codes, although certain elements like GQA and the mixture of SWA and full attention are temporarily excluded in the beta version.

Use Cases for the Model Qwen 1.5 Chat

Text Generation

Qwen1.5-72B-Chat is well-suited for building chatbots due to its large size and impressive language generation capabilities. It can engage in meaningful and contextually relevant conversations across a variety of topics, providing a natural and human-like interaction experience.

Retrieval Augmented Generation and Function Calling

This model is applicable for Retrieval-Augmented Generation (RAG) applications, where it can effectively mitigate issues such as hallucination and real-time data shortage. Qwen1.5-72B-Chat demonstrates strong performance in retrieval-augmented generation benchmarks, surpassing Llama-2-70B and Mixtral 8x7b on many of them. The model is showcasing its ability to integrate external knowledge seamlessly into generated text. Moreover, it excels in function calling tasks (tool-use benchmark), accurately selecting and utilizing external tools with high precision, making it a preferable choice for AI agents requiring interaction with external systems.

Content Moderation

Qwen1.5-72B-Chat can be employed for content moderation tasks, leveraging its language understanding capabilities to identify and moderate inappropriate or harmful content effectively. Its large size allows for comprehensive analysis of text content, enabling accurate detection and filtering of undesirable material across various platforms and applications.

Multilingual Applications

With its impressive multilingual capabilities, Qwen1.5-72B-Chat is suitable for multilingual tasks, catering to a diverse range of language needs. Whether it's communication, translation, or understanding content in multiple languages, this model consistently delivers strong performance across various linguistic contexts, as shown by its evaluation over a diverse set of 12 languages including French, Spanish, Japanese and others. Its ability to comprehend and generate high-quality content in languages from different regions makes it particularly useful for applications requiring multilingual support.

How It Compares to Competitors

Qwen1.5-72B-Chat is benchmarked against competitors - Llama-2-70B, GPT-4 and others, showcasing promising instruction-following capabilities. In particular, the model has shown strong performance in aligning with human preference on the two common benchmarks - MT-Bench and Alpaca-Eval. It also benefits from stable support for a large 32K context length.

Tips

You can utilize the model for your application by signing up for AI/ML API access on this website.

If you want to test the Qwen1.5-72B-Chat model locally, it is recommended to install the latest Huggingface transformers library (version >= 4.37.0). Users should also pay attention to provided hyper-parameters in generation_config.json to address issues like code switching or other undesirable outcomes (check the model's repository for more details).

License Agreement

The Qwen1.5-72B-Chat model is governed by the Tongyi Qianwen license agreement, which can be accessed on the model's repository on GitHub or Huggingface. You don't need to submit any request for commercial use, unless your product or service has more than 100 million monthly active users.

Conclusion

In conclusion, Qwen1.5-72B-Chat represents a significant advancement in the field of open-source transformer-based language models, offering improved performance and versatility across various natural language processing tasks. This beta version lays the foundation for future developments and optimizations, promising even greater capabilities in the field of AI-driven language processing.

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