DCLM-7B-Chat
This is a fine-tuned version of the DCLM-7B baseline model trained for chat completions.
Quick start
To use the model, open_lm
must first be installed:
pip install git+https://github.com/mlfoundations/open_lm.git
Then simply load the model and generate responses:
from open_lm.hf import *
from transformers import (
AutoModelForCausalLM,
AutoTokenizer,
)
model = AutoModelForCausalLM.from_pretrained("mathewhe/DCLM-7B-Chat")
tokenizer = AutoTokenizer.from_pretrained("mathewhe/DCLM-7B-Chat")
messages = [
{"role": "user", "content": "What is an LLM?"},
]
inputs = tokenizer.apply_chat_template(messages)
print(tokenizer.decode(model.generate(**inputs)[0]))
Alternatively, copy the included chat_class.py
module into your local
directory and just import the Chat
class:
from chat_class import Chat
chat = Chat() # default args: Chat("mathewhe/DCLM-7B-Chat", device="cuda")
# for one-off instructions
instruction = "Write a list of ingredients for banana pudding."
print(chat.instruct(instruction))
# for multi-turn chat
response1 = chat.message("Who was Stan Lee?")
response2 = chat.message("What was his wife's name?")
# to reset the chat
chat.reset()
Chat template
This model uses the following chat template and does not support a separate system prompt:
<|endoftext|>[INST] <user-message> [/INST][ASST] <llm-response> [/ASST]<|endoftext|>
The included tokenizer will correctly format messages, so you should not have to manually format the input text.
Instead, use the tokenizer's apply_chat_template()
method on a list of
messages.
Each message should be a dict with two keys:
- "role": Either "user" or "assistant".
- "content": The message to include.
For example:
from transformers import AutoTokenizer
tokenizer = AutoTokenizer.from_pretrained("mathewhe/DCLM-7B-Chat")
messages = [
{"role": "user", "content": "Solve for x: 3x=4"},
{"role": "assistant", "content": "3x=4\n(3x)/3=(4)/3\nx=4/3"},
{"role": "user", "content": "Please explain your work."},
]
print(tokenizer.apply_chat_template(messages, tokenize=False)
outputs
<|endoftext|>[INST] Solve for x: 3x=4 [/INST][ASST] 3x=4
(3x)/3=(4)/3
x=4/3 [/ASST]<|endoftext|><|endoftext|>[INST] Please explain your work [/INST]
See the example code in the included chat_class.py
module for more details.
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