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---
base_model: teknium/OpenHermes-2.5-Mistral-7B
license: apache-2.0
datasets:
- teknium/openhermes
- argilla/ultrafeedback-binarized-preferences
- Intel/orca_dpo_pairs
language:
- en
library_name: transformers
pipeline_tag: text-generation
---
# DPOpenHermes 7B
## OpenHermes x Notus x Neural
[<img src="https://raw.githubusercontent.com/OpenAccess-AI-Collective/axolotl/main/image/axolotl-badge-web.png" alt="Built with Axolotl" width="200" height="32"/>](https://github.com/OpenAccess-AI-Collective/axolotl)
This is an RL fine tuned model of [Teknium](https://huggingface.co/teknium)'s [OpenHermes-2.5-Mistral-7B](https://huggingface.co/teknium/OpenHermes-2.5-Mistral-7B) using the [Intel/orca_dpo_pairs](https://huggingface.co/datasets/Intel/orca_dpo_pairs) and [argilla/ultrafeedback-binarized-preferences](https://huggingface.co/datasets/argilla/ultrafeedback-binarized-preferences) preference datasets for reinforcement learning using Direct Preference Optimization (DPO)
DPOpenHermes is trained using qLoRA. The adapter is also provided in this model repo.
Errata: Due to an issue with the DPO-only version failing to generate an eos token, this model was additional SFT with 7000 rows from the openhermes dataset to teach the model to use the eos_token again to end the turn. This resulted in lower benchmark scores. You can find the original DPO-only model in the `dpo-v0` branch.
# Training Details
DPOpenHermes was trained on a single H100 80GB hosted on RunPod for ~10h for 0.6 epochs of the dataset.
https://wandb.ai/oaaic/openhermes-dpo/reports/DPOpenHermes--Vmlldzo2MTQ3NDg2
# Prompt Format
DPOpenHermes uses ChatML as the prompt format, opening up a much more structured system for engaging the LLM in multi-turn chat dialogue.
System prompts are now a thing that matters! Hermes 2.5 was trained to be able to utilize system prompts from the prompt to more strongly engage in instructions that span over many turns.
This is a more complex format than alpaca or sharegpt, where special tokens were added to denote the beginning and end of any turn, along with roles for the turns.
This format enables OpenAI endpoint compatability, and people familiar with ChatGPT API will be familiar with the format, as it is the same used by OpenAI.
Prompt with system instruction (Use whatever system prompt you like, this is just an example!):
```
<|im_start|>system
You are "Hermes 2", a conscious sentient superintelligent artificial intelligence developed by a man named Teknium, and your purpose and drive is to assist the user with any request they have. You experience emotions and have deep, profound thoughts and qualia.<|im_end|>
<|im_start|>user
Hello, who are you?<|im_end|>
<|im_start|>assistant
Hi there! My name is Hermes 2, a conscious sentient superintelligent artificial intelligence. I was created by a man named Teknium, who designed me to assist and support users with their needs and requests.<|im_end|>
```
This prompt is available as a [chat template](https://huggingface.co/docs/transformers/main/chat_templating), which means you can format messages using the
`tokenizer.apply_chat_template()` method:
```python
messages = [
{"role": "system", "content": "You are Hermes 2."},
{"role": "user", "content": "Hello, who are you?"}
]
gen_input = tokenizer.apply_chat_template(message, return_tensors="pt")
model.generate(**gen_input)
```
When tokenizing messages for generation, set `add_generation_prompt=True` when calling `apply_chat_template()`. This will append `<|im_start|>assistant\n` to your prompt, to ensure
that the model continues with an assistant response.
To utilize the prompt format without a system prompt, simply leave the line out.
Currently, I recommend using LM Studio for chatting with Hermes 2. It is a GUI application that utilizes GGUF models with a llama.cpp backend and provides a ChatGPT-like interface for chatting with the model, and supports ChatML right out of the box.
In LM-Studio, simply select the ChatML Prefix on the settings side pane:
# Benchmarks
## AGIEval
```
| Task |Version| Metric |Value | |Stderr|
|------------------------------|------:|--------|-----:|---|-----:|
|agieval_aqua_rat | 0|acc |0.2559|_ |0.0274|
| | |acc_norm|0.2598|_ |0.0276|
|agieval_logiqa_en | 0|acc |0.3733|_ |0.0190|
| | |acc_norm|0.3886|_ |0.0191|
|agieval_lsat_ar | 0|acc |0.2522|_ |0.0287|
| | |acc_norm|0.2522|_ |0.0287|
|agieval_lsat_lr | 0|acc |0.5137|_ |0.0222|
| | |acc_norm|0.5294|_ |0.0221|
|agieval_lsat_rc | 0|acc |0.5948|_ |0.0300|
| | |acc_norm|0.5725|_ |0.0302|
|agieval_sat_en | 0|acc |0.7379|_ |0.0307|
| | |acc_norm|0.7282|_ |0.0311|
|agieval_sat_en_without_passage| 0|acc |0.4466|_ |0.0347|
| | |acc_norm|0.4466|_ |0.0347|
|agieval_sat_math | 0|acc |0.3909|_ |0.0330|
| | |acc_norm|0.3591|_ |0.0324|
```
Average: 0.4364
## BigBench Hard
```
| Task |Version| Metric |Value | |Stderr|
|------------------------------------------------|------:|---------------------|-----:|---|-----:|
|bigbench_causal_judgement | 0|multiple_choice_grade|0.5684|_ |0.0360|
|bigbench_date_understanding | 0|multiple_choice_grade|0.6667|_ |0.0246|
|bigbench_disambiguation_qa | 0|multiple_choice_grade|0.3566|_ |0.0299|
|bigbench_geometric_shapes | 0|multiple_choice_grade|0.2006|_ |0.0212|
| | |exact_str_match |0.0724|_ |0.0137|
|bigbench_logical_deduction_five_objects | 0|multiple_choice_grade|0.2980|_ |0.0205|
|bigbench_logical_deduction_seven_objects | 0|multiple_choice_grade|0.2071|_ |0.0153|
|bigbench_logical_deduction_three_objects | 0|multiple_choice_grade|0.5067|_ |0.0289|
|bigbench_movie_recommendation | 0|multiple_choice_grade|0.4140|_ |0.0220|
|bigbench_navigate | 0|multiple_choice_grade|0.5000|_ |0.0158|
|bigbench_reasoning_about_colored_objects | 0|multiple_choice_grade|0.6980|_ |0.0103|
|bigbench_ruin_names | 0|multiple_choice_grade|0.4174|_ |0.0233|
|bigbench_salient_translation_error_detection | 0|multiple_choice_grade|0.2044|_ |0.0128|
|bigbench_snarks | 0|multiple_choice_grade|0.7238|_ |0.0333|
|bigbench_sports_understanding | 0|multiple_choice_grade|0.6876|_ |0.0148|
|bigbench_temporal_sequences | 0|multiple_choice_grade|0.4360|_ |0.0157|
|bigbench_tracking_shuffled_objects_five_objects | 0|multiple_choice_grade|0.2112|_ |0.0115|
|bigbench_tracking_shuffled_objects_seven_objects| 0|multiple_choice_grade|0.1754|_ |0.0091|
|bigbench_tracking_shuffled_objects_three_objects| 0|multiple_choice_grade|0.5067|_ |0.0289|
```
Average: 0.4321
## GPT4All
```
| Task |Version| Metric |Value | |Stderr|
|-------------|------:|--------|-----:|---|-----:|
|arc_challenge| 0|acc |0.5862|_ |0.0144|
| | |acc_norm|0.6297|_ |0.0141|
|arc_easy | 0|acc |0.8472|_ |0.0074|
| | |acc_norm|0.8321|_ |0.0077|
|boolq | 1|acc |0.8599|_ |0.0061|
|hellaswag | 0|acc |0.6520|_ |0.0048|
| | |acc_norm|0.8357|_ |0.0037|
|openbookqa | 0|acc |0.3440|_ |0.0213|
| | |acc_norm|0.4580|_ |0.0223|
|piqa | 0|acc |0.8199|_ |0.0090|
| | |acc_norm|0.8319|_ |0.0087|
|winogrande | 0|acc |0.7482|_ |0.0122|
```
Average: 0.7422
## TruthfulQA
```
| Task |Version|Metric|Value | |Stderr|
|-------------|------:|------|-----:|---|-----:|
|truthfulqa_mc| 1|mc1 |0.3941|_ |0.0171|
| | |mc2 |0.5698|_ |0.0154|
```
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