metadata

license: apache-2.0
library_name: peft
tags:
  - mistral
datasets:
  - jondurbin/airoboros-2.2.1
  - Open-Orca/SlimOrca
  - garage-bAInd/Open-Platypus
inference: false
pipeline_tag: text-generation
base_model: mistralai/Mixtral-8x7B-v0.1

Mixtral-8x7B-Instruct-v0.1

A pretrained generative language model with ~47 billion parameters geared towards instruction-following capabilities.

Model Details

This model was built via parameter-efficient finetuning of the mistralai/Mixtral-8x7B-v0.1 base model on the first 20k rows in each of the jondurbin/airoboros-2.2.1, Open-Orca/SlimOrca, and garage-bAInd/Open-Platypus datasets.

Developed by: Daniel Furman
Model type: Causal language model (clm)
Language(s) (NLP): English
License: Apache 2.0
Finetuned from model: mistralai/Mixtral-8x7B-v0.1

Model Sources

Repository: here

Evaluation Results

Metric	Value
MMLU (5-shot)	Coming
ARC (25-shot)	Coming
HellaSwag (10-shot)	Coming
TruthfulQA (0-shot)	Coming
Avg.	Coming

We use Eleuther.AI's Language Model Evaluation Harness to run the benchmark tests above, the same version as Hugging Face's Open LLM Leaderboard.

Basic Usage

Setup

!pip install -q -U transformers peft torch accelerate einops sentencepiece

import torch
from peft import PeftModel, PeftConfig
from transformers import (
    AutoModelForCausalLM,
    AutoTokenizer,
)

peft_model_id = "dfurman/Mixtral-8x7B-Instruct-v0.1"
config = PeftConfig.from_pretrained(peft_model_id)

tokenizer = AutoTokenizer.from_pretrained(
    peft_model_id,
    use_fast=True,
    trust_remote_code=True,
)

model = AutoModelForCausalLM.from_pretrained(
    config.base_model_name_or_path,
    torch_dtype=torch.float16,
    device_map="auto",
    trust_remote_code=True,
)

model = PeftModel.from_pretrained(
    model, 
    peft_model_id
)

messages = [
    {"role": "user", "content": "Tell me a recipe for a mai tai."},
]

print("\n\n*** Prompt:")
input_ids = tokenizer.apply_chat_template(
    messages,
    tokenize=True,
    return_tensors="pt",
)
print(tokenizer.decode(input_ids[0]))

print("\n\n*** Generate:")
with torch.autocast("cuda", dtype=torch.bfloat16):
    output = model.generate(
        input_ids=input_ids.cuda(),
        max_new_tokens=1024,
        do_sample=True,
        temperature=0.7,
        return_dict_in_generate=True,
        eos_token_id=tokenizer.eos_token_id,
        pad_token_id=tokenizer.pad_token_id,
        repetition_penalty=1.2,
        no_repeat_ngram_size=5,
    )

response = tokenizer.decode(
    output["sequences"][0][len(input_ids[0]):], 
    skip_special_tokens=True
)
print(response)

Outputs

Prompt:

"<s> [INST] Tell me a recipe for a mai tai. [/INST]"

Generation:

"""1.5 oz White Rum
2 oz Dark Rum
1 oz Orange Curacao
0.5 oz Orgeat Syrup
0.5 oz Simple Syrup
0.75 oz Lime Juice

In a shaker filled with ice, combine the white rum, dark rum, orange curacao, orgeat syrup, simple syrup, and lime juice. Shake vigorously for 10-15 seconds.

Strain the mixture into a double old-fashioned glass filled with fresh ice. Garnish with a lime wedge and a sprig of mint.

Enjoy your delicious mai tai!"""

Speeds, Sizes, Times

runtime / 50 tokens (sec)	GPU	dtype	VRAM (GB)
3.21	1x A100 (40 GB SXM)	torch.bfloat16	16

Training

It took ~24 hours to train 2 epochs on 4x A6000s.

Prompt Format

This model was finetuned with the following format:

tokenizer.chat_template = "{{ bos_token }}{% for message in messages %}{% if (message['role'] == 'user') != (loop.index0 % 2 == 0) %}{{ raise_exception('Conversation roles must alternate user/assistant/user/assistant/...') }}{% endif %}{% if message['role'] == 'user' %}{{ '[INST] ' + message['content'] + ' [/INST] ' }}{% elif message['role'] == 'assistant' %}{{ message['content'] + eos_token + ' ' }}{% else %}{{ raise_exception('Only user and assistant roles are supported!') }}{% endif %}{% endfor %}"

This format is available as a chat template via the apply_chat_template() method. Here's an illustrative example:

messages = [
    {"role": "user", "content": "Tell me a recipe for a mai tai."},
    {"role": "assistant", "content": "1 oz light rum\n½ oz dark rum\n¼ oz orange curaçao\n2 oz pineapple juice\n¾ oz lime juice\nDash of orgeat syrup (optional)\nSplash of grenadine (for garnish, optional)\nLime wheel and cherry garnishes (optional)\n\nShake all ingredients except the splash of grenadine in a cocktail shaker over ice. Strain into an old-fashioned glass filled with fresh ice cubes. Gently pour the splash of grenadine down the side of the glass so that it sinks to the bottom. Add garnishes as desired."},
    {"role": "user", "content": "How can I make it more upscale and luxurious?"},
]

print("\n\n*** Prompt:")
input_ids = tokenizer.apply_chat_template(
    messages,
    tokenize=True,
    return_tensors="pt",
)
print(tokenizer.decode(input_ids[0]))

Output

"""<s> [INST] Tell me a recipe for a mai tai. [/INST] 1 oz light rum\n½ oz dark rum\n (...) Add garnishes as desired.</s>  [INST] How can I make it more upscale and luxurious? [/INST]"""

Training Hyperparameters

We use the SFTTrainer from trl to fine-tune LLMs on instruction-following datasets.

See here for the finetuning code, which contains an exhaustive view of the hyperparameters employed.

The following TrainingArguments config was used:

output_dir = "./results"
num_train_epochs = 2
auto_find_batch_size = True
gradient_accumulation_steps = 2
optim = "paged_adamw_32bit"
save_strategy = "epoch"
learning_rate = 3e-4
lr_scheduler_type = "cosine"
warmup_ratio = 0.03
logging_strategy = "steps"
logging_steps = 25
evaluation_strategy = "no"
bf16 = True

The following bitsandbytes quantization config was used:

quant_method: bitsandbytes
load_in_8bit: False
load_in_4bit: True
llm_int8_threshold: 6.0
llm_int8_skip_modules: None
llm_int8_enable_fp32_cpu_offload: False
llm_int8_has_fp16_weight: False
bnb_4bit_quant_type: nf4
bnb_4bit_use_double_quant: False
bnb_4bit_compute_dtype: bfloat16

Model Card Contact

dryanfurman at gmail

Mistral Research Citation

@misc{jiang2023mistral,
      title={Mistral 7B}, 
      author={Albert Q. Jiang and Alexandre Sablayrolles and Arthur Mensch and Chris Bamford and Devendra Singh Chaplot and Diego de las Casas and Florian Bressand and Gianna Lengyel and Guillaume Lample and Lucile Saulnier and Lélio Renard Lavaud and Marie-Anne Lachaux and Pierre Stock and Teven Le Scao and Thibaut Lavril and Thomas Wang and Timothée Lacroix and William El Sayed},
      year={2023},
      eprint={2310.06825},
      archivePrefix={arXiv},
      primaryClass={cs.CL}
}

Framework versions

PEFT 0.7.2.dev0