Qwen 2 1.5B Instruct overview
Qwen 2 1.5B Instruct by Alibaba Cloud
Qwen2 1.5B Instruct API offers advanced language processing capabilities, supporting multiple languages and tasks with improved performance and efficiency for developers.
Qwen 2 1.5B Instruct specs
- Developer
- Alibaba Cloud
- Input
- Text
- Output
- Text
- API
- OpenAI-compatible, base URL
https://api.aimlapi.com/v1
Basic Information
Model Name: Qwen2 1.5B Instruct
Developer/Creator: Qwen team (Alibaba Group)
Model Type: Text-to-text language model
Overview
Qwen2 1.5B Instruct is a compact, instruction-tuned language model designed for efficient natural language processing tasks. It offers a balance between performance and resource requirements, making it suitable for a wide range of applications.
Key Features
- Instruction-tuned for improved task performance
- Group Query Attention (GQA) for faster inference and reduced memory usage
- Tied embeddings for parameter efficiency
- Context length supports input of up to 128,000 tokens and can produce outputs containing up to 8,000 tokens.
- Multilingual support for 27 languages besides English and Chinese
Intended Use
Qwen2 1.5B Instruct is designed for various natural language processing tasks, including:
Language Support
The model supports 29 languages, including Chinese, English, French, Spanish, Portuguese, German, Italian, Russian, Japanese, Korean, Vietnamese, Thai, and Arabic.
Architecture
Qwen2 1.5B Instruct is based on the Transformer architecture with the following enhancements:
- Improved tokenizer for multiple natural languages and code
Use cases
- multilingual chatbots and conversational AI assistants
- code generation and interpretation for software developers
- educational platforms focusing on STEM subjects including math and science
- content generation for marketing, writing, and creative industries
- question answering and knowledge management across multiple languages
- research and prototyping for multilingual NLP and instruction-following systems
- long-context document summarization and analysis
Capabilities
- Function calling
- Streaming
- Structured outputs
Qwen 2 1.5B Instruct API pricing
| Usage | Price | Unit |
|---|---|---|
| Input | $0.525 | 1M tokens |
| Output | $0.525 | 1M tokens |
Prices from the AI/ML API price list, checked on Nov 4, 2026.
Qwen 2 1.5B Instruct vs other models: token prices
AI/ML API input and output rates for 5 models, per million tokens.
| Model | Input | Output |
|---|---|---|
| $0.525 | $0.525 | |
| $0.15 | $0.47 | |
| $0.16 | $0.47 | |
| $0.4761 | $3.39 | |
| $4.23 | $12.7 |
Qwen 2 1.5B Instruct FAQ
How much does Qwen 2 1.5B Instruct cost?
Qwen 2 1.5B Instruct costs $0.525 input and $0.525 output per 1M tokens on AI/ML API, billed as you go with no subscription.
Does Qwen 2 1.5B Instruct support streaming?
Yes, Qwen 2 1.5B Instruct can stream responses as they are generated.
Does Qwen 2 1.5B Instruct support tool calling and structured outputs?
Yes, Qwen 2 1.5B Instruct supports both function calling and structured outputs.
Who created Qwen 2 1.5B Instruct?
Qwen 2 1.5B Instruct was built by Alibaba Cloud.
Which endpoint is used to access Qwen 2 1.5B Instruct?
It is accessed via the v1 endpoint.