---
license: other
license_name: yi-license
license_link: https://huggingface.co./01-ai/Yi-34B/blob/main/LICENSE
language:
- en
library_name: transformers
pipeline_tag: text-generation
---

**NousResearch/Nous-Capybara-34B**, **migtissera/Tess-M-v1.2** and **migtissera/Tess-M-v1.3** merged with a new, experimental implementation of "dare ties" via mergekit. See:

> Language Models are Super Mario: Absorbing Abilities from Homologous Models as a Free Lunch

https://github.com/yule-BUAA/MergeLM

https://github.com/cg123/mergekit/tree/dare-tokenizer

It was quantized with exllamav2 on 200 rows (400K tokens) on a long Vicuna format chat, a single sci fi story and a single fantasy story. This should hopefully yield better chat performance than the default wikitext quantization.

Quantized to 4bpw, enough for **~45K context on a 24GB GPU.**
***

Merged with the following config, and the tokenizer from Yi Llamafied:
```
models:
  - model: /home/alpha/Storage/Models/Raw/larryvrh_Yi-34B-200K-Llamafied
    # no parameters necessary for base model
  - model: /home/alpha/Storage/Models/Raw/migtissera_Tess-M-v1.3
    parameters:
      weight: 0.50
      density: 0.56
  - model: /home/alpha/Storage/Models/Raw/migtissera_Tess-M-v1.2
    parameters:
      weight: 0.20
      density: 0.50
  - model: /home/alpha/Storage/Models/Raw/Nous-Capybara-34B
    parameters:
      weight: 0.50
      density: 0.56
merge_method: dare_ties
base_model: /home/alpha/Storage/Models/Raw/larryvrh_Yi-34B-200K-Llamafied
parameters:
  int8_mask: true
dtype: bfloat16
```

Tess 1.2 (at a low weight) and 1.3 were used because, according to the trainer, they were trained on different datasets: https://migel.substack.com/p/learnings-from-training-tess

I chose not to include other finetunes, such as Dolphin, because they aren't trained on the 200K base. If any other 200K finetunes pop up, let me know.

***


First exllama quantization pass, on 80 rows so it will fit in memory:
```
python convert.py --in_dir /home/alpha/FastModels/Capybara-Tess-34B-200K-DARE -o /home/alpha/FastModels/scratch -om /home/alpha/FastModels/capytess13mes.json --cal_dataset /home/alpha/Documents/smol.parquet -l 2048 -r 80 -ml 2048 -mr 40 -gr 40 -ss 4096 -nr -b 4.0 -hb 6
```

Second exllama quantization pass. 200 rows:
```
python convert.py --in_dir /home/alpha/FastModels/Capybara-Tess-34B-200K-DARE -o /home/alpha/FastModels/scratch -m /home/alpha/FastModels/capytess13mes.json --cal_dataset /home/alpha/Documents/medium.parquet -l 2048 -r 200 -ml 2048 -mr 40 -gr 200 -ss 4096 -b 4.0 -hb 6 -cf /home/alpha/FastModels/Capybara-Tess-34B-200K-DARE-exl2-4bpw-fiction -nr
```


***
## Prompt template: Orca-Vicuna

```
SYSTEM: {system_message}
USER: {prompt}
ASSISTANT:

```
Being a Yi model, try disabling the BOS token and/or running a lower temperature with MinP if output doesn't seem right.

Sometimes the model "spells out" the stop token as `</s>` like Capybara, so you may need to add `</s>` as an additional stopping condition. 

***

Credits:

https://github.com/cg123/mergekit/tree/dare-tokenizer

https://huggingface.co./NousResearch/Nous-Capybara-34B/

https://huggingface.co./migtissera/Tess-M-v1.2

https://huggingface.co./migtissera/Tess-M-v1.3

https://huggingface.co./larryvrh/Yi-34B-200K-Llamafied

https://huggingface.co./01-ai/Yi-34B-200K