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---
base_model:
- stepfun-ai/Step-3.5-Flash
pipeline_tag: text-generation
---
## Model Details
This model is an int4 model with group_size 128 and symmetric quantization of [stepfun-ai/Step-3.5-Flash](https://huggingface.co/stepfun-ai/Step-3.5-Flash) generated by [intel/auto-round](https://github.com/intel/auto-round). Please follow the license of the original model.
## How To Use
### INT4 Inference
start a vllm server:
```bash
vllm serve INC4AI/Step-3.5-Flash-int4-AutoRound --dtype half --trust-remote-code \
--host localhost --port 4321 --served-model-name step3p5-flash --data-parallel-size 4 \
--enable-expert-parallel --disable-cascade-attn --reasoning-parser step3p5 \
--enable-auto-tool-choice --tool-call-parser step3p5 --hf-overrides '{"num_nextn_predict_layers": 1}'
```
benchmark test:
```bash
vllm bench serve --backend vllm --model INC4AI/Step-3.5-Flash-int4-AutoRound --endpoint /v1/completions \
--served-model-name step3p5-flash --dataset-name random --random-input 2048 --random-output 1024 \
--max-concurrency 10 --num-prompt 100 --port 4321
```
<!--
## Generate the Model
```bash
auto_round --enable_torch_compile --iters 200 --model=stepfun-ai/Step-3.5-Flash --fp_layers=moe.gate,share_expert
``` -->
## Ethical Considerations and Limitations
The model can produce factually incorrect output, and should not be relied on to produce factually accurate information. Because of the limitations of the pretrained model and the finetuning datasets, it is possible that this model could generate lewd, biased or otherwise offensive outputs.
Therefore, before deploying any applications of the model, developers should perform safety testing.
## Caveats and Recommendations
Users (both direct and downstream) should be made aware of the risks, biases and limitations of the model.
Here are a couple of useful links to learn more about Intel's AI software:
- [Intel Neural Compressor](https://github.com/intel/neural-compressor)
- [AutoRound](https://github.com/intel/auto-round)
## Disclaimer
The license on this model does not constitute legal advice. We are not responsible for the actions of third parties who use this model. Please consult an attorney before using this model for commercial purposes.
## Cite
```
@article{cheng2023optimize,
title={Optimize weight rounding via signed gradient descent for the quantization of llms},
author={Cheng, Wenhua and Zhang, Weiwei and Shen, Haihao and Cai, Yiyang and He, Xin and Lv, Kaokao and Liu, Yi},
journal={arXiv preprint arXiv:2309.05516},
year={2023}
}
```
[arxiv](https://arxiv.org/abs/2309.05516) [github](https://github.com/intel/auto-round)
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