Qwen 1.5 Chat (0.5B) API

Introducing Qwen 1.5 Chat (0.5B) API: the efficient solution for engaging and responsive AI-driven conversations. With half a billion parameters, this model offers smart, quick, and scalable chat capabilities, ideal for various applications.

Modalities
TextText
Model type
Chat
Status
Deprecated

Qwen 1.5 Chat (0.5B) overview

Qwen 1.5 Chat (0.5B) specs

Developer
Alibaba Cloud
Input
Text
Output
Text
API
OpenAI-compatible, base URL https://api.aimlapi.com/v1

Qwen 1.5 Chat (0.5B) Description

Qwen 1.5 Chat (0.5B) is an AI conversational model designed for efficiency and speed. With 500 million parameters, it provides a streamlined approach to generating responsive and coherent dialogues. This model is perfect for applications that require fast, reliable, and intelligent conversational interactions without the need for extensive computational resources.

How does it compare to other models?

Qwen 1.5 Chat (0.5B) is distinguished by its optimal balance between size and conversational ability. It's designed to deliver quality interactions efficiently, making it a suitable choice for those who need a capable conversational model without the larger footprint of higher-parameter counterparts. This makes it particularly attractive for smaller scale or resource-conscious applications.

Tips for Maximizing Interaction Quality

To maximize the quality of interactions with Qwen 1.5 Chat (0.5B), ensure that prompts are clear and contextually relevant. Regular training and updates based on user feedback can help the model better understand and respond to conversational nuances, enhancing the overall chat experience.

Optimizing for Different Scenarios

The adaptability of Qwen 1.5 Chat (0.5B) makes it effective across a variety of conversational scenarios. Whether for straightforward customer queries or more interactive engagements, the model can be fine-tuned to meet specific requirements. Its efficiency and scalability make it an excellent choice for organizations looking to implement intelligent conversational agents in their operations.

Use cases

  • Natural language understanding and generation
  • Multilingual translation and instruction following
  • Creative writing and role playing in chat
  • Coding assistance including code generation and completion
  • Mathematical reasoning and logical problem solving
  • Tool use and AI agent operation with precise external tool invocation
  • Long text generation and understanding of structured data (tables, JSON, etc.)

Capabilities

  • Function calling
  • Streaming
  • Structured outputs

Qwen 1.5 Chat (0.5B) API pricing

Qwen 1.5 Chat (0.5B) pricing in US dollars
UsagePriceUnit
Input$0.1051M tokens
Output$0.1051M tokens

Qwen 1.5 Chat (0.5B) 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 (0.5B) vs other models: token prices

AI/ML API input and output rates for 5 models, per million tokens.

AI/ML API model prices in USD per million tokens
ModelInputOutput
Qwen 1.5 Chat (0.5B)$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

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Qwen 1.5 Chat (0.5B) FAQ

Does Qwen 1.5 Chat (0.5B) support streaming?

Yes, Qwen 1.5 Chat (0.5B) can stream responses as they are generated.

Does Qwen 1.5 Chat (0.5B) support tool calling and structured outputs?

Yes, Qwen 1.5 Chat (0.5B) supports both function calling and structured outputs.

Who created Qwen 1.5 Chat (0.5B)?

Qwen 1.5 Chat (0.5B) was built by Alibaba Cloud.

Which API endpoint is used to access Qwen 1.5 Chat (0.5B)?

It is accessed via the v1 endpoint.

Start building with Qwen 1.5 Chat (0.5B)