Qwen 1.5 Chat (72B) overview
Qwen 1.5 Chat (72B) by Alibaba Cloud
Qwen 1.5 Chat (72B) is an advanced AI model that utilizes natural language processing techniques to engage in dynamic and engaging conversations with users.
Qwen 1.5 Chat (72B) specs
- Developer
- Alibaba Cloud
- Input
- Text
- Output
- Text
- API
- OpenAI-compatible, base URL
https://api.aimlapi.com/v1
Qwen 1.5 Chat (72B) Description
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.
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.
Use cases
- Chatbots and virtual assistants
- Multilingual translation and communication
- AI agents requiring tool use and external system interaction
- Retrieval-augmented generation to enhance information accuracy
- Content moderation and filtering
- Instruction-following applications in natural language processing
Capabilities
- Function calling
- Streaming
- Structured outputs
Qwen 1.5 Chat (72B) API pricing
| Usage | Price | Unit |
|---|---|---|
| Input | $0.945 | 1M tokens |
| Output | $0.945 | 1M tokens |
Qwen 1.5 Chat (72B) is deprecated on AI/ML API. The rates apply to existing integrations; the models below are current alternatives.
Prices from the AI/ML API price list, checked on Nov 4, 2026.
Qwen 1.5 Chat (72B) vs other models: token prices
AI/ML API input and output rates for 5 models, per million tokens.
| Model | Input | Output |
|---|---|---|
| $0.945 | $0.945 | |
| $0.15 | $0.47 | |
| $0.16 | $0.47 | |
| $0.4761 | $3.39 | |
| $4.23 | $12.7 |
Related articles
Qwen 1.5 Chat (72B) FAQ
Does Qwen 1.5 Chat (72B) support streaming?
Yes, Qwen 1.5 Chat (72B) can stream responses as they are generated.
Does Qwen 1.5 Chat (72B) support tool calling and structured outputs?
Yes, Qwen 1.5 Chat (72B) supports both function calling and structured outputs.
Who created Qwen 1.5 Chat (72B)?
Qwen 1.5 Chat (72B) was built by Alibaba Cloud.
Which API endpoint version does Qwen 1.5 Chat (72B) use?
It is accessed via the v1 endpoint.

