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---
inference: false
language:
- en
library_name: transformers
license: llama2
model_creator: OpenLemur
model_link: https://huggingface.co/OpenLemur/lemur-70b-chat-v1
model_name: Lemur 70B Chat v1
model_type: llama
pipeline_tag: text-generation
quantized_by: TheBloke
tags:
- text-generation
- code
- text-generation-inference
widget:
- example_title: Lemur favorite fruit
group: Python
text: What's lemur's favorite fruit?
- example_title: Merge Sort
group: Python
text: Write a Python function to merge two sorted lists into one sorted list without
using any built-in sort functions.
---
<!-- header start -->
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<div style="text-align:center; margin-top: 0em; margin-bottom: 0em"><p style="margin-top: 0.25em; margin-bottom: 0em;">TheBloke's LLM work is generously supported by a grant from <a href="https://a16z.com">andreessen horowitz (a16z)</a></p></div>
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# Lemur 70B Chat v1 - GGUF
- Model creator: [OpenLemur](https://huggingface.co/OpenLemur)
- Original model: [Lemur 70B Chat v1](https://huggingface.co/OpenLemur/lemur-70b-chat-v1)
## Description
This repo contains GGUF format model files for [OpenLemur's Lemur 70B Chat v1](https://huggingface.co/OpenLemur/lemur-70b-chat-v1).
<!-- README_GGUF.md-about-gguf start -->
### About GGUF
GGUF is a new format introduced by the llama.cpp team on August 21st 2023. It is a replacement for GGML, which is no longer supported by llama.cpp.
The key benefit of GGUF is that it is a extensible, future-proof format which stores more information about the model as metadata. It also includes significantly improved tokenization code, including for the first time full support for special tokens. This should improve performance, especially with models that use new special tokens and implement custom prompt templates.
As of August 25th, here is a list of clients and libraries that are known to support GGUF:
* [llama.cpp](https://github.com/ggerganov/llama.cpp).
* [text-generation-webui](https://github.com/oobabooga/text-generation-webui), the most widely used web UI. Supports GGUF with GPU acceleration via the ctransformers backend - llama-cpp-python backend should work soon too.
* [KoboldCpp](https://github.com/LostRuins/koboldcpp), now supports GGUF as of release 1.41! A powerful GGML web UI, with full GPU accel. Especially good for story telling.
* [LM Studio](https://lmstudio.ai/), version 0.2.2 and later support GGUF. A fully featured local GUI with GPU acceleration on both Windows (NVidia and AMD), and macOS.
* [LoLLMS Web UI](https://github.com/ParisNeo/lollms-webui), should now work, choose the `c_transformers` backend. A great web UI with many interesting features. Supports CUDA GPU acceleration.
* [ctransformers](https://github.com/marella/ctransformers), now supports GGUF as of version 0.2.24! A Python library with GPU accel, LangChain support, and OpenAI-compatible AI server.
* [llama-cpp-python](https://github.com/abetlen/llama-cpp-python), supports GGUF as of version 0.1.79. A Python library with GPU accel, LangChain support, and OpenAI-compatible API server.
* [candle](https://github.com/huggingface/candle), added GGUF support on August 22nd. Candle is a Rust ML framework with a focus on performance, including GPU support, and ease of use.
The clients and libraries below are expecting to add GGUF support shortly:
<!-- README_GGUF.md-about-gguf end -->
<!-- repositories-available start -->
## Repositories available
* [GPTQ models for GPU inference, with multiple quantisation parameter options.](https://huggingface.co/TheBloke/Lemur-70B-Chat-v1-GPTQ)
* [2, 3, 4, 5, 6 and 8-bit GGUF models for CPU+GPU inference](https://huggingface.co/TheBloke/Lemur-70B-Chat-v1-GGUF)
* [2, 3, 4, 5, 6 and 8-bit GGML models for CPU+GPU inference (deprecated)](https://huggingface.co/TheBloke/Lemur-70B-Chat-v1-GGML)
* [OpenLemur's original unquantised fp16 model in pytorch format, for GPU inference and for further conversions](https://huggingface.co/OpenLemur/lemur-70b-chat-v1)
<!-- repositories-available end -->
<!-- prompt-template start -->
## Prompt template: ChatML
```
<|im_start|>system
{system_message}<|im_end|>
<|im_start|>user
{prompt}<|im_end|>
<|im_start|>assistant
```
<!-- prompt-template end -->
<!-- compatibility_gguf start -->
## Compatibility
These quantised GGUF files are compatible with llama.cpp from August 21st 2023 onwards, as of commit [6381d4e110bd0ec02843a60bbeb8b6fc37a9ace9](https://github.com/ggerganov/llama.cpp/commit/6381d4e110bd0ec02843a60bbeb8b6fc37a9ace9)
As of August 24th 2023 they are now compatible with KoboldCpp, release 1.41 and later.
They are are not yet compatible with any other third-party UIS, libraries or utilities but this is expected to change very soon.
## Explanation of quantisation methods
<details>
<summary>Click to see details</summary>
The new methods available are:
* GGML_TYPE_Q2_K - "type-1" 2-bit quantization in super-blocks containing 16 blocks, each block having 16 weight. Block scales and mins are quantized with 4 bits. This ends up effectively using 2.5625 bits per weight (bpw)
* GGML_TYPE_Q3_K - "type-0" 3-bit quantization in super-blocks containing 16 blocks, each block having 16 weights. Scales are quantized with 6 bits. This end up using 3.4375 bpw.
* GGML_TYPE_Q4_K - "type-1" 4-bit quantization in super-blocks containing 8 blocks, each block having 32 weights. Scales and mins are quantized with 6 bits. This ends up using 4.5 bpw.
* GGML_TYPE_Q5_K - "type-1" 5-bit quantization. Same super-block structure as GGML_TYPE_Q4_K resulting in 5.5 bpw
* GGML_TYPE_Q6_K - "type-0" 6-bit quantization. Super-blocks with 16 blocks, each block having 16 weights. Scales are quantized with 8 bits. This ends up using 6.5625 bpw
Refer to the Provided Files table below to see what files use which methods, and how.
</details>
<!-- compatibility_gguf end -->
<!-- README_GGUF.md-provided-files start -->
## Provided files
| Name | Quant method | Bits | Size | Max RAM required | Use case |
| ---- | ---- | ---- | ---- | ---- | ----- |
| [lemur-70b-chat-v1.Q2_K.gguf](https://huggingface.co/TheBloke/Lemur-70B-Chat-v1-GGUF/blob/main/lemur-70b-chat-v1.Q2_K.gguf) | Q2_K | 2 | 29.28 GB| 31.78 GB | smallest, significant quality loss - not recommended for most purposes |
| [lemur-70b-chat-v1.Q3_K_S.gguf](https://huggingface.co/TheBloke/Lemur-70B-Chat-v1-GGUF/blob/main/lemur-70b-chat-v1.Q3_K_S.gguf) | Q3_K_S | 3 | 29.92 GB| 32.42 GB | very small, high quality loss |
| [lemur-70b-chat-v1.Q3_K_M.gguf](https://huggingface.co/TheBloke/Lemur-70B-Chat-v1-GGUF/blob/main/lemur-70b-chat-v1.Q3_K_M.gguf) | Q3_K_M | 3 | 33.19 GB| 35.69 GB | very small, high quality loss |
| [lemur-70b-chat-v1.Q3_K_L.gguf](https://huggingface.co/TheBloke/Lemur-70B-Chat-v1-GGUF/blob/main/lemur-70b-chat-v1.Q3_K_L.gguf) | Q3_K_L | 3 | 36.15 GB| 38.65 GB | small, substantial quality loss |
| [lemur-70b-chat-v1.Q4_K_S.gguf](https://huggingface.co/TheBloke/Lemur-70B-Chat-v1-GGUF/blob/main/lemur-70b-chat-v1.Q4_K_S.gguf) | Q4_K_S | 4 | 39.07 GB| 41.57 GB | small, greater quality loss |
| [lemur-70b-chat-v1.Q4_K_M.gguf](https://huggingface.co/TheBloke/Lemur-70B-Chat-v1-GGUF/blob/main/lemur-70b-chat-v1.Q4_K_M.gguf) | Q4_K_M | 4 | 41.42 GB| 43.92 GB | medium, balanced quality - recommended |
| [lemur-70b-chat-v1.Q5_K_S.gguf](https://huggingface.co/TheBloke/Lemur-70B-Chat-v1-GGUF/blob/main/lemur-70b-chat-v1.Q5_K_S.gguf) | Q5_K_S | 5 | 47.46 GB| 49.96 GB | large, low quality loss - recommended |
| [lemur-70b-chat-v1.Q5_K_M.gguf](https://huggingface.co/TheBloke/Lemur-70B-Chat-v1-GGUF/blob/main/lemur-70b-chat-v1.Q5_K_M.gguf) | Q5_K_M | 5 | 48.75 GB| 51.25 GB | large, very low quality loss - recommended |
| lemur-70b-chat-v1.Q6_K.gguf | q6_K | 6 | 56.82 GB | 59.32 GB | very large, extremely low quality loss |
| lemur-70b-chat-v1.Q8_0.gguf | q8_0 | 8 | 73.29 GB | 75.79 GB | very large, extremely low quality loss - not recommended |
**Note**: the above RAM figures assume no GPU offloading. If layers are offloaded to the GPU, this will reduce RAM usage and use VRAM instead.
### Q6_K and Q8_0 files are split and require joining
**Note:** HF does not support uploading files larger than 50GB. Therefore I have uploaded the Q6_K and Q8_0 files as split files.
<details>
<summary>Click for instructions regarding Q6_K and Q8_0 files</summary>
### q6_K
Please download:
* `lemur-70b-chat-v1.Q6_K.gguf-split-a`
* `lemur-70b-chat-v1.Q6_K.gguf-split-b`
### q8_0
Please download:
* `lemur-70b-chat-v1.Q8_0.gguf-split-a`
* `lemur-70b-chat-v1.Q8_0.gguf-split-b`
To join the files, do the following:
Linux and macOS:
```
cat lemur-70b-chat-v1.Q6_K.gguf-split-* > lemur-70b-chat-v1.Q6_K.gguf && rm lemur-70b-chat-v1.Q6_K.gguf-split-*
cat lemur-70b-chat-v1.Q8_0.gguf-split-* > lemur-70b-chat-v1.Q8_0.gguf && rm lemur-70b-chat-v1.Q8_0.gguf-split-*
```
Windows command line:
```
COPY /B lemur-70b-chat-v1.Q6_K.gguf-split-a + lemur-70b-chat-v1.Q6_K.gguf-split-b lemur-70b-chat-v1.Q6_K.gguf
del lemur-70b-chat-v1.Q6_K.gguf-split-a lemur-70b-chat-v1.Q6_K.gguf-split-b
COPY /B lemur-70b-chat-v1.Q8_0.gguf-split-a + lemur-70b-chat-v1.Q8_0.gguf-split-b lemur-70b-chat-v1.Q8_0.gguf
del lemur-70b-chat-v1.Q8_0.gguf-split-a lemur-70b-chat-v1.Q8_0.gguf-split-b
```
</details>
<!-- README_GGUF.md-provided-files end -->
<!-- README_GGUF.md-how-to-run start -->
## How to run in `llama.cpp`
Make sure you are using `llama.cpp` from commit [6381d4e110bd0ec02843a60bbeb8b6fc37a9ace9](https://github.com/ggerganov/llama.cpp/commit/6381d4e110bd0ec02843a60bbeb8b6fc37a9ace9) or later.
For compatibility with older versions of llama.cpp, or for use with third-party clients and libaries, please use GGML files instead.
```
./main -t 10 -ngl 32 -m lemur-70b-chat-v1.q4_K_M.gguf --color -c 4096 --temp 0.7 --repeat_penalty 1.1 -n -1 -p "### Instruction: Write a story about llamas\n### Response:"
```
Change `-t 10` to the number of physical CPU cores you have. For example if your system has 8 cores/16 threads, use `-t 8`.
Change `-ngl 32` to the number of layers to offload to GPU. Remove it if you don't have GPU acceleration.
Change `-c 4096` to the desired sequence length for this model. For extended sequence models - eg 8K, 16K, 32K - the necessary RoPE scaling parameters are read from the GGUF file and set by llama.cpp automatically.
If you want to have a chat-style conversation, replace the `-p <PROMPT>` argument with `-i -ins`
For other parameters and how to use them, please refer to [the llama.cpp documentation](https://github.com/ggerganov/llama.cpp/blob/master/examples/main/README.md)
## How to run in `text-generation-webui`
Further instructions here: [text-generation-webui/docs/llama.cpp.md](https://github.com/oobabooga/text-generation-webui/blob/main/docs/llama.cpp.md).
<!-- README_GGUF.md-how-to-run end -->
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Thank you to all my generous patrons and donaters!
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<!-- footer end -->
<!-- original-model-card start -->
# Original model card: OpenLemur's Lemur 70B Chat v1
# lemur-70b-chat-v1
<p align="center">
<img src="https://huggingface.co/datasets/OpenLemur/assets/resolve/main/lemur_icon.png" width="300" height="300" alt="Lemur">
</p>
<div align="center">
<img src="https://huggingface.co/datasets/OpenLemur/assets/resolve/main/lemur_chat_radar.png">
</div>
## Use
### Setup
First, we have to install all the libraries listed in `requirements.txt` in [GitHub](https://github.com/OpenLemur/lemur-v1):
```bash
pip install -r requirements.txt
```
### Generation
```python
from transformers import AutoTokenizer, AutoModelForCausalLM
tokenizer = AutoTokenizer.from_pretrained("OpenLemur/lemur-70b-chat-v1")
model = AutoModelForCausalLM.from_pretrained("OpenLemur/lemur-70b-chat-v1", device_map="auto", load_in_8bit=True)
# Text Generation Example
prompt = """<|im_start|>system
You are a helpful, respectful, and honest assistant.
<|im_end|>
<|im_start|>user
What's a lemur's favorite fruit?<|im_end|>
<|im_start|>assistant
"""
input = tokenizer(prompt, return_tensors="pt")
output = model.generate(**input, max_length=50, num_return_sequences=1)
generated_text = tokenizer.decode(output[0], skip_special_tokens=True)
print(generated_text)
# Code Generation Example
prompt = """<|im_start|>system
Below is an instruction that describes a task. Write a response that appropriately completes the request.
<|im_end|>
<|im_start|>user
Write a Python function to merge two sorted lists into one sorted list without using any built-in sort functions.<|im_end|>
<|im_start|>assistant
"""
input = tokenizer(prompt, return_tensors="pt")
output = model.generate(**input, max_length=200, num_return_sequences=1)
generated_code = tokenizer.decode(output[0], skip_special_tokens=True)
print(generated_code)
```
# License
The model is licensed under a CC BY-NC-4.0 license focused on research use cases.
# Acknowledgements
The Lemur project is an open collaborative research effort between [XLang Lab](https://www.xlang.ai/) and Salesforce Research. We thank Salesforce, Google Research and Amazon AWS for their gift support.
<!-- original-model-card end -->
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