---
library_name: pytorch
license: apache-2.0
pipeline_tag: text-generation
tags:
- llm
- generative_ai
- quantized
- android

---

![](https://qaihub-public-assets.s3.us-west-2.amazonaws.com/qai-hub-models/models/baichuan2_7b_quantized/web-assets/model_demo.png)

# Baichuan2-7B: Optimized for Mobile Deployment
## State-of-the-art large language model useful on a variety of language understanding and generation tasks


Baichuan2-7B is a family of LLMs. It achieves the state-of-the-art performance of its size on standard Chinese and English authoritative benchmarks (C-EVAL/MMLU). 4-bit weights and 16-bit activations making it suitable for on-device deployment. For Prompt and output length specified below, the time to first token is Baichuan2-PromptProcessor-Quantized's latency and average time per addition token is Baichuan2-TokenGenerator-Quantized's latency.

This model is an implementation of Baichuan2-7B found [here](https://github.com/baichuan-inc/Baichuan-7B/).


More details on model performance accross various devices, can be found [here](https://aihub.qualcomm.com/models/baichuan2_7b_quantized).

### Model Details

- **Model Type:** Text generation
- **Model Stats:**
  - Input sequence length for Prompt Processor: 128
  - Context length: 4096
  - Number of parameters: 7.07B
  - Precision: w4a16 + w8a16 (few layers)
  - Num of key-value heads: 8
  - Information about the model parts: Prompt Processor and Token Generator are split into 5 parts each. Each corresponding Prompt Processor and Token Generator part share weights.
  - Prompt processor model size: 5.06 GB
  - Prompt processor input (part1): 128 tokens
  - Prompt processor output (part1): Embeddings output
  - Prompt processor input (other parts): 128 tokens + KVCache initialized with pad token
  - Prompt processor output (other parts): 128 output tokens + KVCache for token generator
  - Token generator model size: 5.06 GB
  - Token generator input (part1): 128 tokens
  - Token generator output (part1): Embeddings output
  - Token generator input (other parts): 1 input token + past KVCache
  - Token generator output (other parts): 1 output token + KVCache for next iteration
  - Use: Initiate conversation with prompt-processor and then token generator for subsequent iterations.
  - Supported languages: Chinese and English.
  - Minimum QNN SDK version required: 2.27.7
  - TTFT: Time To First Token is the time it takes to generate the first response token. This is expressed as a range because it varies based on the length of the prompt. The lower bound is for a short prompt (up to 128 tokens, i.e., one iteration of the prompt processor) and the upper bound is for a prompt using the full context length (4096 tokens).
  - Response Rate: Rate of response generation after the first response token.

| Model | Device | Chipset | Target Runtime | Response Rate (tokens per second) | Time To First Token (range, seconds)
|---|---|---|---|---|---|
| Baichuan2-7B | Snapdragon 8 Elite QRD | Snapdragon® 8 Elite | QNN | 7.72 | 0.20804799999999998 - 6.6575359999999995 | -- | Use Export Script |

## Deploying Baichuan2-7B on-device

Please follow the [LLM on-device deployment]({genie_url}) tutorial.



## License
* The license for the original implementation of Baichuan2-7B can be found [here](https://github.com/baichuan-inc/Baichuan-7B/blob/main/LICENSE).
* The license for the compiled assets for on-device deployment can be found [here](https://github.com/baichuan-inc/Baichuan-7B/blob/main/LICENSE)



## References
* [Baichuan 2: Open Large-scale Language Models](https://arxiv.org/abs/2309.10305)
* [Source Model Implementation](https://github.com/baichuan-inc/Baichuan-7B/)



## Community
* Join [our AI Hub Slack community](https://qualcomm-ai-hub.slack.com/join/shared_invite/zt-2d5zsmas3-Sj0Q9TzslueCjS31eXG2UA#/shared-invite/email) to collaborate, post questions and learn more about on-device AI.
* For questions or feedback please [reach out to us](mailto:ai-hub-support@qti.qualcomm.com).

## Usage and Limitations

Model may not be used for or in connection with any of the following applications:

- Accessing essential private and public services and benefits;
- Administration of justice and democratic processes;
- Assessing or recognizing the emotional state of a person;
- Biometric and biometrics-based systems, including categorization of persons based on sensitive characteristics;
- Education and vocational training;
- Employment and workers management;
- Exploitation of the vulnerabilities of persons resulting in harmful behavior;
- General purpose social scoring;
- Law enforcement;
- Management and operation of critical infrastructure;
- Migration, asylum and border control management;
- Predictive policing;
- Real-time remote biometric identification in public spaces;
- Recommender systems of social media platforms;
- Scraping of facial images (from the internet or otherwise); and/or
- Subliminal manipulation