Qwen 1.5 Chat (4B) overview
Qwen 1.5 Chat (4B) specs
- Developer
- Alibaba Cloud
- Input
- Text
- Output
- Text
- API
- OpenAI-compatible, base URL
https://api.aimlapi.com/v1
Qwen 1.5 Chat (4B) Description
Qwen 1.5 Chat (4B) is an advanced conversational AI model that offers a blend of performance and efficiency. With 4 billion parameters, it provides a sophisticated level of language understanding and generation, facilitating engaging and coherent conversations. This model is optimized for speed and accuracy, making it ideal for real-time interaction in various applications.
How does it compare to other models?
Qwen 1.5 Chat (4B) stands out for its efficient handling of conversational AI tasks. It strikes a balance between computational resource usage and conversational quality, making it a cost-effective solution for many businesses and developers. While it may have fewer parameters compared to larger models, it maintains a high standard of dialogue and user engagement.
Tips for Maximizing Interaction Quality
To maximize the effectiveness of Qwen 1.5 Chat (4B), it's crucial to use precise and context-rich prompts. The model's performance can be further enhanced by regular training and updating based on specific user interactions and feedback, which helps in refining its conversational abilities and ensuring relevancy.
Optimizing for Different Scenarios
Qwen 1.5 Chat (4B) is adaptable to a wide range of conversational needs. Whether it's casual chatting, technical support, or specific topic inquiries, the model can be fine-tuned to understand and generate appropriate responses. This flexibility, combined with its linguistic capabilities, makes Qwen 1.5 Chat (4B) a versatile and powerful tool for creating advanced, efficient, and engaging conversational experiences.
Use cases
- Chatbots and conversational agents
- E-commerce conversational interfaces
- Any application requiring real-time natural language understanding and generation
Capabilities
- Function calling
- Streaming
- Structured outputs
Qwen 1.5 Chat (4B) API pricing
| Usage | Price | Unit |
|---|---|---|
| Input | $0.105 | 1M tokens |
| Output | $0.105 | 1M tokens |
Qwen 1.5 Chat (4B) 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 (4B) vs other models: token prices
AI/ML API input and output rates for 5 models, per million tokens.
| Model | Input | Output |
|---|---|---|
 Qwen 1.5 Chat (4B) | $0.105 | $0.105 |
| Qwen3.8 Omni Flash | $0.15 | $0.47 |
| Qwen3.8-Flash | $0.16 | $0.47 |
| Qwen 3.8 27B | $0.4761 | $3.39 |
| Qwen3.8 Max Prime | $4.23 | $12.7 |
Models similar to Qwen 1.5 Chat (4B)
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Qwen 1.5 Chat (4B) FAQ
Does Qwen 1.5 Chat (4B) support streaming?
Yes, Qwen 1.5 Chat (4B) can stream responses as they are generated.
Does Qwen 1.5 Chat (4B) support tool calling and structured outputs?
Yes, Qwen 1.5 Chat (4B) supports both function calling and structured outputs.
Who created Qwen 1.5 Chat (4B)?
Qwen 1.5 Chat (4B) was built by Alibaba Cloud.
What endpoint is used to access Qwen 1.5 Chat (4B)?
The model is available at the v1 endpoint.