**SUS-Chat** is a 34B bilingual Chinese-English dialogue model, jointly
released by the **Southern University of Science and Technology** and
**International Digital Economy Academy**. The SUS-Chat-34B model has
been fine-tuned on millions of high-quality, multilingual instruction
data. While maintaining the strong language capabilities of the base
model, the SUS-Chat-34B model has improved the modelâs response to human
instructions through high-quality instruction fine-tuning and excels at
imitating human thought processes through chains of thought. It
introduces inter-instruction attention sharing in long texts, expanding
the window size from 4K to 8K, significantly enhancing the usability of
multi-round dialogues.
It has surpassed all models of the same size in almost all benchmark
tests and is better suited to meet the practical needs of complex
multilingual tasks. Compared to larger models, SUS-Chat-34B remains
highly competitive and achieved state-of-the-art performance in our
comprehensive evaluations.
SUS-Chat powerfully demonstrates that through the right instruction
fine-tuning, academic institutions can achieve better performance
without increasing model parameters, using open-source datasets and
models. This bridges the gap between academia and industry in large
language models and opens new possibilities for collaboration between
academic and industrial sectors.
# Performance
To better evaluate the performance of the SUS-Chat-34B model, we
conducted assessments across multiple benchmark tests and have
open-sourced the evaluation framework
[TLEM](https://huggingface.co/spaces/SUSTech/tlem) to facilitate
replication and comparison by other researchers.
In TLEM, we utilized various benchmark tests including MMLU, CMMLU,
C-Eval, BBH, GSM-8K, and MATH, focusing on measuring the modelâs
knowledge and thinking capabilities. In these metrics, the SUS-Chat-34B
model achieved state-of-the-art performance. Additionally, we
incorporated
[lm-eval](https://github.com/EleutherAI/lm-evaluation-harness) to test
SUS-Chat and similar models on winogrande, hellaswag, arc, and
truthful-qa, assessing the modelâs common-sense reasoning ability and
susceptibility to illusions.
Overall, the SUS-Chat-34B model significantly outperformed models of
similar scale and achieved the most advanced comprehensive performance.
| model | mmlu-chat | cmmlu-chat | ceval-chat | gsm8k | BBH | MATH | winogrande | arc | hellaswag | truthfulqa | average |
|:------------------|----------:|-----------:|-----------:|------:|------:|------:|-----------:|------:|----------:|-----------:|--------:|
| GPT-4 | 83 | 71 | 69.9 | 91.4 | 86.7 | 45.8 | 87.5 | 94.5 | 91.4 | nan | 80.1333 |
| SUS-Chat-34B | 77.35 | 78.68 | 82.42 | 80.06 | 67.62 | 28.8 | 81.22 | 81.54 | 83.79 | 57.47 | 71.895 |
| Qwen-72B-Chat | 74.52 | 77.02 | 77.22 | 76.57 | 72.63 | 35.9 | 80.58 | 81.29 | 87.02 | 50.64 | 71.339 |
| DeepSeek-67B-Chat | 69.43 | 48.51 | 59.7 | 74.45 | 69.73 | 29.56 | 76.09 | 82.1 | 86.06 | 56.37 | 65.2 |
| OrionStar-34B | 68.51 | 66.88 | 65.13 | 54.36 | 62.88 | 12.8 | 77.27 | 80.19 | 84.54 | 53.24 | 62.58 |
| Yi-34B-Chat | 66.96 | 55.16 | 77.16 | 63.76 | 61.54 | 10.02 | 76.64 | 70.66 | 82.29 | 54.57 | 61.876 |
# Usage
SUS-Chat-34B is a standard LLaMA model and should be seamlessly
compatible with the LLaMA ecosystem. We provide the following example to
demonstrate how it can be used for multi-turn dialogues.
``` python
from transformers import AutoModelForCausalLM, AutoTokenizer
def chat_template(messages):
history = ""
for message in messages:
match message:
case {"role": "user", "content": message}:
history += f"### Human: {message}\n\n### Assistant: "
case {"role": "assistant", "content": message}:
history += message
return history
model_path = "SUSTech/SUS-Chat-34B"
tokenizer = AutoTokenizer.from_pretrained(model_path, use_fast=False)
model = AutoModelForCausalLM.from_pretrained(
model_path, device_map="auto", torch_dtype="auto"
).eval()
messages = [{"role": "user", "content": "hi"}]
input_ids = tokenizer.encode(chat_template(messages), return_tensors="pt").to("cuda")
output_ids = model.generate(input_ids.to("cuda"))
response = tokenizer.decode(
output_ids[0][input_ids.shape[1] :], skip_special_tokens=True
)
messages.append({"role": "assistant", "content": response})
# Second round
messages.append({"role": "user", "content": "What is the capital of China?"})
input_ids = tokenizer.encode(chat_template(messages), return_tensors="pt").to("cuda")
output_ids = model.generate(input_ids.to("cuda"))
response = tokenizer.decode(
output_ids[0][input_ids.shape[1] :], skip_special_tokens=True
)
messages.append({"role": "assistant", "content": response})
```
# Limitations
SUS-Chat has only undergone supervised fine-tuning and has not yet been
trained on human preference learning. As a result, it may produce
unreasonable responses in some situations and exacerbate existing issues
in language models, including hallucinations, non-determinism, and
cumulative errors. To achieve better performance for downstream tasks,
we recommend adjusting the generation configuration parameters
accordingly.
# Disclaimer
During the training process, we used data compliance check algorithms to
ensure the compliance of the training model as much as possible. Due to
the complexity of the data and the diverse use cases of language models,
we cannot guarantee that the model will produce correct and reasonable
outputs in all scenarios. Please be aware that there is still a risk of
the model generating problematic outputs. We will not be responsible for
any risks or issues arising from misuse, misguidance, illegal use, and
related misinformation, as well as data security issues related to the
model.
# License
This model is developed entirely for academic research and free
commercial use, but it must adhere to the
[license](https://github.com/SUSTech-IDEA/SUS-Chat/blob/main/MODEL_LICENSE_AGREEMENT.txt)
from 01-ai.