Multiple GPTQ parameter permutations are provided; see Provided Files below for details of the options provided, their parameters, and the software used to create them.
These files were quantised using hardware kindly provided by Massed Compute.
This may not be a complete list; if you know of others, please let me know!
Provided files, and GPTQ parameters
Multiple quantisation parameters are provided, to allow you to choose the best one for your hardware and requirements.
Each separate quant is in a different branch. See below for instructions on fetching from different branches.
Most GPTQ files are made with AutoGPTQ. Mistral models are currently made with Transformers.
Explanation of GPTQ parameters
Bits: The bit size of the quantised model.
GS: GPTQ group size. Higher numbers use less VRAM, but have lower quantisation accuracy. "None" is the lowest possible value.
Act Order: True or False. Also known as desc_act. True results in better quantisation accuracy. Some GPTQ clients have had issues with models that use Act Order plus Group Size, but this is generally resolved now.
Damp %: A GPTQ parameter that affects how samples are processed for quantisation. 0.01 is default, but 0.1 results in slightly better accuracy.
GPTQ dataset: The calibration dataset used during quantisation. Using a dataset more appropriate to the model's training can improve quantisation accuracy. Note that the GPTQ calibration dataset is not the same as the dataset used to train the model - please refer to the original model repo for details of the training dataset(s).
Sequence Length: The length of the dataset sequences used for quantisation. Ideally this is the same as the model sequence length. For some very long sequence models (16+K), a lower sequence length may have to be used. Note that a lower sequence length does not limit the sequence length of the quantised model. It only impacts the quantisation accuracy on longer inference sequences.
ExLlama Compatibility: Whether this file can be loaded with ExLlama, which currently only supports Llama and Mistral models in 4-bit.
If you remove the --local-dir-use-symlinks False parameter, the files will instead be stored in the central Hugging Face cache directory (default location on Linux is: ~/.cache/huggingface), and symlinks will be added to the specified --local-dir, pointing to their real location in the cache. This allows for interrupted downloads to be resumed, and allows you to quickly clone the repo to multiple places on disk without triggering a download again. The downside, and the reason why I don't list that as the default option, is that the files are then hidden away in a cache folder and it's harder to know where your disk space is being used, and to clear it up if/when you want to remove a download model.
The cache location can be changed with the HF_HOME environment variable, and/or the --cache-dir parameter to huggingface-cli.
Note that using Git with HF repos is strongly discouraged. It will be much slower than using huggingface-hub, and will use twice as much disk space as it has to store the model files twice (it stores every byte both in the intended target folder, and again in the .git folder as a blob.)
Example Python code for interfacing with TGI (requires huggingface-hub 0.17.0 or later):
pip3 install huggingface-hub
python
1from huggingface_hub import InferenceClient
23endpoint_url ="https://your-endpoint-url-here"45prompt ="Tell me about AI"6prompt_template=f'''Below is an instruction that describes a task. Write a response that appropriately completes the request.
78### Instruction:
9{prompt}1011### Response:
12'''1314client = InferenceClient(endpoint_url)15response = client.text_generation(16 prompt_template,17 max_new_tokens=128,18 do_sample=True,19 temperature=0.7,20 top_p=0.95,21 top_k=40,22 repetition_penalty=1.123)2425print(f"Model output: {response}")
Python code example: inference from this GPTQ model
Install the necessary packages
Requires: Transformers 4.33.0 or later, Optimum 1.12.0 or later, and AutoGPTQ 0.4.2 or later.
shell
1pip3 install --upgrade transformers optimum
2# If using PyTorch 2.1 + CUDA 12.x:3pip3 install --upgrade auto-gptq
4# or, if using PyTorch 2.1 + CUDA 11.x:5pip3 install --upgrade auto-gptq --extra-index-url https://huggingface.github.io/autogptq-index/whl/cu118/
If you are using PyTorch 2.0, you will need to install AutoGPTQ from source. Likewise if you have problems with the pre-built wheels, you should try building from source:
1from transformers import AutoModelForCausalLM, AutoTokenizer, pipeline
23model_name_or_path ="TheBloke/Dr_Samantha-7B-GPTQ"4# To use a different branch, change revision5# For example: revision="gptq-4bit-32g-actorder_True"6model = AutoModelForCausalLM.from_pretrained(model_name_or_path,7 device_map="auto",8 trust_remote_code=False,9 revision="main")1011tokenizer = AutoTokenizer.from_pretrained(model_name_or_path, use_fast=True)1213prompt ="Write a story about llamas"14system_message ="You are a story writing assistant"15prompt_template=f'''Below is an instruction that describes a task. Write a response that appropriately completes the request.
1617### Instruction:
18{prompt}1920### Response:
21'''2223print("\n\n*** Generate:")2425input_ids = tokenizer(prompt_template, return_tensors='pt').input_ids.cuda()26output = model.generate(inputs=input_ids, temperature=0.7, do_sample=True, top_p=0.95, top_k=40, max_new_tokens=512)27print(tokenizer.decode(output[0]))2829# Inference can also be done using transformers' pipeline3031print("*** Pipeline:")32pipe = pipeline(33"text-generation",34 model=model,35 tokenizer=tokenizer,36 max_new_tokens=512,37 do_sample=True,38 temperature=0.7,39 top_p=0.95,40 top_k=40,41 repetition_penalty=1.142)4344print(pipe(prompt_template)[0]['generated_text'])
Compatibility
The files provided are tested to work with Transformers. For non-Mistral models, AutoGPTQ can also be used directly.
ExLlama is compatible with Llama architecture models (including Mistral, Yi, DeepSeek, SOLAR, etc) in 4-bit. Please see the Provided Files table above for per-file compatibility.
For a list of clients/servers, please see "Known compatible clients / servers", above.
Discord
For further support, and discussions on these models and AI in general, join us at:
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If you're able and willing to contribute it will be most gratefully received and will help me to keep providing more models, and to start work on new AI projects.
Donaters will get priority support on any and all AI/LLM/model questions and requests, access to a private Discord room, plus other benefits.
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Original model card: Sethu Iyer's Dr Samantha 7B
Dr. Samantha
SynthIQ
Overview
Dr. Samantha is a language model made by merging Severus27/BeingWell_llama2_7b and ParthasarathyShanmugam/llama-2-7b-samantha using mergekit.
Has capabilities of a medical knowledge-focused model (trained on USMLE databases and doctor-patient interactions) with the philosophical, psychological, and relational understanding of the Samantha-7b model.
As both a medical consultant and personal counselor, Dr.Samantha could effectively support both physical and mental wellbeing - important for whole-person care.
Yaml Config
yaml
12slices:3-sources:4-model: Severus27/BeingWell_llama2_7b
5layer_range:[0,32]6-model: ParthasarathyShanmugam/llama-2-7b-samantha
7layer_range:[0,32]89merge_method: slerp
10base_model: TinyPixel/Llama-2-7B-bf16-sharded
1112parameters:13t:14-filter: self_attn
15value:[0,0.5,0.3,0.7,1]16-filter: mlp
17value:[1,0.5,0.7,0.3,0]18-value:0.5# fallback for rest of tensors19tokenizer_source: union
2021dtype: bfloat16
22
Prompt Template
text
1Below is an instruction that describes a task. Write a response that appropriately completes the request.
23### Instruction:
4What is your name?
56### Response:
7My name is Samantha.
OpenLLM Leaderboard Performance
T
Model
Average
ARC
Hellaswag
MMLU
TruthfulQA
Winogrande
GSM8K
1
sethuiyer/Dr_Samantha-7b
52.95
53.84
77.95
47.94
45.58
73.56
18.8
2
togethercomputer/LLaMA-2-7B-32K-Instruct
50.02
51.11
78.51
46.11
44.86
73.88
5.69
3
togethercomputer/LLaMA-2-7B-32K
47.07
47.53
76.14
43.33
39.23
71.9
4.32
Subject-wise Accuracy
Subject
Accuracy (%)
Clinical Knowledge
52.83
Medical Genetics
49.00
Human Aging
58.29
Human Sexuality
55.73
College Medicine
38.73
Anatomy
41.48
College Biology
52.08
College Medicine
38.73
High School Biology
53.23
Professional Medicine
38.73
Nutrition
50.33
Professional Psychology
46.57
Virology
41.57
High School Psychology
66.60
Average
48.85%
Evaluation by GPT-4 across 25 random prompts from ChatDoctor-200k Dataset
Overall Rating: 83.5/100
Pros:
Demonstrates extensive medical knowledge through accurate identification of potential causes for various symptoms.
Responses consistently emphasize the importance of seeking professional diagnoses and treatments.
Advice to consult specialists for certain concerns is well-reasoned.
Practical interim measures provided for symptom management in several cases.
Consistent display of empathy, support, and reassurance for patients' well-being.
Clear and understandable explanations of conditions and treatment options.
Prompt responses addressing all aspects of medical inquiries.
Cons:
Could occasionally place stronger emphasis on urgency when symptoms indicate potential emergencies.
Discussion of differential diagnoses could explore a broader range of less common causes.
Details around less common symptoms and their implications need more depth at times.
Opportunities exist to gather clarifying details on symptom histories through follow-up questions.
Consider exploring full medical histories to improve diagnostic context where relevant.
Caution levels and risk factors associated with certain conditions could be underscored more.