README.md

---
license: apache-2.0
library_name: peft
tags:
- alignment-handbook
- trl
- sft
- generated_from_trainer
base_model: mistralai/Mistral-7B-v0.1
model-index:
- name: Cimphony-Mistral-Law-7B
  results:
  - task: 
      type: text-generation
    dataset: 
      type: cais/mmlu
      name: MMLU
    metrics:
    - name: International Law
      type: accuracy
      value: 0.802
      verified: false
  - task: 
      type: text-generation
    dataset: 
      type: cais/mmlu
      name: MMLU
    metrics:
    - name: Jurisprudence
      type: accuracy
      value: 0.704
      verified: false
  - task: 
      type: text-generation
    dataset: 
      type: cais/mmlu
      name: MMLU
    metrics:
    - name: Professional Law
      type: accuracy
      value: 0.416
      verified: false
  - task: 
      type: text-generation
    dataset: 
      type: coastalcph/lex_glue
      name: LexGLUE
    metrics:
    - name: ECtHR A
      type: balanced accuracy
      value: 0.631
      verified: false
  - task: 
      type: text-generation
    dataset: 
      type: coastalcph/lex_glue
      name: LexGLUE
    metrics:
    - name: LEDGAR
      type: balanced accuracy
      value: 0.741
      verified: false
  - task: 
      type: text-generation
    dataset: 
      type: coastalcph/lex_glue
      name: LexGLUE
    metrics:
    - name: CaseHOLD
      type: accuracy
      value: 0.776
      verified: false
  - task: 
      type: text-generation
    dataset: 
      type: coastalcph/lex_glue
      name: LexGLUE
    metrics:
    - name: Unfair-ToS
      type: balanced accuracy
      value: 0.809
      verified: false
      
pipeline_tag: text-generation
---

# Cimphony-Mistral-Law-7B

We introduce Cimphony-Mistral-Law-7B, a fine-tuned version of [mistralai/Mistral-7B-v0.1](https://huggingface.co./mistralai/Mistral-7B-v0.1).

Cimphony’s LLMs present state-of-the-art performance on legal benchmarks, suppressing models trained on a much larger corpus with significantly more resources, even GPT-4, OpenAI’s flagship model.

Checkout and register on our [https://cimphony.ai](https://app.cimphony.ai/signup?callbackUrl=https://app.cimphony.ai/)

![image/png](https://cdn-uploads.huggingface.co/production/uploads/657d36d3647c0211e7746ed9/Yjx96bC58SPgNwmDxx_yx.png)

## Model description

The model was trained on 600M tokens. We use novel methods to expose the model to this corpus during training, blending a variety of legal reading comprehension tasks, as well as general language data.


## Legal Evaluation Results

We evaluate on the legal splits of the MMLU benchmark, as well as LexGLUE. While both are multiple option benchmarks, prompts were adapted so that the models output a single answer. In some cases, additional post-processing was required.

Benchmarks for which the labels were A-E multiple-choice options use an accuracy mertic. Benchmarks that have a closed list of options (e.g. Unfair-ToS) use a balanced-accuracy metric, as classes may not be balanced.

| Model / Benchmark                  | International Law (MMLU)  | Jurisprudence (MMLU)  | Professional law (MMLU)  | ECtHR A (LexGlue)  | LEDGAR (LexGlue)  | CaseHOLD (LexGlue)  | Unfair-ToS (LexGlue)   |
|:-----------------------------------|:--------------------------|:----------------------|:-------------------------|:-------------------|:------------------|:--------------------|:-----------------------|
| Mistral-7B-Instruct-v0.2           | 73.6%                     | 69.4%                 | 41.2%                    |  67.5%             | 50.6%             |  56.3%              | 36.6%                  |
| AdaptLLM                           | 57.0%                     | 52.8%                 | 36.1%                    | 51.9%              | 46.3%             |  50.0%              | 51.3%                  |
| Saul-7B                            | 69.4%                     | 63.0%                 | **43.2%**                | **71.2%**          | 55.9%             | 65.8%               | 80.3%                  |
|<tr style="background-color:yellow;"><td>Cimphony-7B</td><td>**80.2%**</td><td>**70.4%**</td><td>41.6%</td><td>63.1%</td><td>**74.1%**</td><td>**77.6%**</td><td>**80.9%**</td></tr>|
 
## Training and evaluation data

Following the framework presented in [AdaptLLM](https://huggingface.co./AdaptLLM/law-chat), we convert the raw legal text into reading comprehension. Taking inspiration from human learning via reading comprehension - practice after reading improves the ability to answer questions based on the learned knowledge.

We developed a high-quality prompt database, considering the capabilities we’d like the model to possess. LLMs were prompt with the raw text and a collection of prompts, and it returned answers, additional questions, and transformations relevant to the input data. With further post-processing of these outputs, we created our legal reading comprehension dataset.


| Domain             | Dataset             | Tokens | License     |
|:-------------------|:--------------------|:------:|:------------|
| Legal              | The Pile (FreeLaw)  | 180M   | MIT         |
| Legal              | LexGlue (train split only) | 108M   | CC-BY-4.0   |
| Legal              | USClassActions      | 12M    | GPL-3.0     |
| Math (CoT)         | AQUA-RAT            | 3M     | Apache-2.0  |
| Commonsense (CoT)  | ECQA                | 2.4M   | Apache-2.0  |
| Reasoning (CoT)    | EntailmentBank      | 1.8M   | Apache-2.0  |
| Chat               | UltraChat           | 90M    | MIT         |
| Code               | Code-Feedback       | 36M    | Apache-2.0  |
| Instruction        | OpenOrca            | 180M   | MIT         |


## Intended uses & limitations

This model can be used for use cases involving legal domain text generation.

As with any language model, users must not solely relay on model generations. This model has not gone through a human-feedback alignment (RLHF). The model may generate responses containing hallucinations and biases.

Example use:
```python
from transformers import AutoModelForCausalLM, AutoTokenizer
from peft import PeftModel

tokenizer = AutoTokenizer.from_pretrained("cimphonyadmin/Cimphony-Mistral-Law-7B")
model = AutoModelForCausalLM.from_pretrained("mistralai/Mistral-7B-v0.1")
model = PeftModel.from_pretrained(model, "cimphonyadmin/Cimphony-Mistral-Law-7B")

# Put your input here:
user_input = '''What can you tell me about ex post facto laws?'''

# Apply the prompt template
prompt = tokenizer.apply_chat_template(user_input, tokenize=False)

inputs = tokenizer(prompt, return_tensors="pt", add_special_tokens=False).input_ids.to(model.device)
outputs = model.generate(input_ids=inputs, max_length=4096)[0]

answer_start = int(inputs.shape[-1])
pred = tokenizer.decode(outputs[answer_start:], skip_special_tokens=True)

print(f'### User Input:\n{user_input}\n\n### Assistant Output:\n{pred}')
```

## Training procedure

### Training hyperparameters

The following hyperparameters were used during training:
- learning_rate: 0.0005
- train_batch_size: 8
- eval_batch_size: 24
- seed: 42
- distributed_type: multi-GPU
- num_devices: 4
- gradient_accumulation_steps: 4
- total_train_batch_size: 128
- total_eval_batch_size: 96
- optimizer: Adam with betas=(0.9,0.999) and epsilon=1e-08
- lr_scheduler_type: cosine
- lr_scheduler_warmup_ratio: 0.05
- num_epochs: 1


### Framework versions

- PEFT 0.8.2
- Transformers 4.37.2
- Pytorch 2.1.2+cu121
- Datasets 2.14.6
- Tokenizers 0.15.2