File size: 8,165 Bytes
c22a863 a3312c9 c22a863 bdb4db5 c22a863 d753a42 c22a863 094681d c22a863 bdb4db5 |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 |
---
license: apache-2.0
thumbnail: https://i.ibb.co/28dVbkB/alfred-mini-1.png
datasets:
- Anthropic/hh-rlhf
- OpenAssistant/oasst1
- databricks/databricks-dolly-15k
language:
- en
- fr
- de
- es
- it
tags:
- falcon-40b
- rlhf
- falcon
---
# Model Card for Alfred-40B-0723
`Alfred-40B-0723` is a finetuned version of [Falcon-40B](https://huggingface.co/tiiuae/falcon-40b), obtained with Reinforcement Learning from Human Feedback (RLHF).
Finetuning was performed in July 2023. It is the first of a series of RLHF models based on Falcon-40B that will be regularly released. It is made available under the Apache 2.0 License.
## Model Details
### Model Description
- **Developed by:** [LightOn](https://www.lighton.ai/) - [Axel Marmet](https://huggingface.co/WeightsnWizardry) (lead), [Oskar Hallström](https://huggingface.co/ohallstrom) (reward models), [Clement Thiriet](https://huggingface.co/cthiriet) (data infrastructure), [Julien Seailles](https://huggingface.co/Jseailleslighton), [Othman Hicheur](https://huggingface.co/othmanlighton), [Amelie Chatelain](https://huggingface.co/ameliechatelain) (data collection)
- **Model type:** Causal decoder-only;
- **Language(s) (NLP):** English, German, Spanish, French (and limited capabilities in Italian, Portuguese, Polish, Dutch, Romanian, Czech, Swedish);
- **License:** Apache 2.0 license.
- **Finetuned from model:** [Falcon-40B](https://huggingface.co/tiiuae/falcon-40b)
- **Training date:** July 2023 (`0723`).
## Uses
### Direct Use
`Alfred-40B-0723` can be used as an instruct or chat model. We encourage its usage for research on large language models finetuned with RLHF as well.
The prefix to use Alfred in chat mode is:
```
Alfred is a large language model trained by LightOn. Knowledge cutoff: November 2022. Current date: 31 July, 2023
User: {user query}
Alfred:
```
The stop word `User:` should be used.
### Out-of-Scope Use
Production use without adequate assessment of risks and mitigation; any use cases which may be considered irresponsible or harmful.
## Bias, Risks, and Limitations
`Alfred-40B-0723` is a finetune of Falcon-40B. As such, it is trained mostly on English, German, Spanish, French, with limited capabilities also in in Italian, Portuguese, Polish, Dutch, Romanian, Czech, Swedish. It will not generalize appropriately to other languages. Furthermore, as it is trained on a large-scale corpora representative of the web, it will carry the stereotypes and biases commonly encountered online.
### Recommendations
We recommend users of `Alfred-40B-0723` to implement appropriate guardrails and precautions in any production use.
### Observed failure modes
From internal testing, the following failure modes have been observed:
* The model has a tendency to respond in Spanish to very short prompts in English, such as shorter greetings (e.g. "Hello", "Hi");
* At times, the model encloses its response in quotes;
* A times, the model adds a sentiment in brackets to its output (e.g. "[sadly] *model response*")
These are mainly due to certain patterns prevalent in the open source datasets used, and will be adressed in future iterations of Alfred.
If you encounter any other recurring failure modes, please open a community discussion, or contact us.
## How to Get Started with the Model
Use the code below to get started with the model.
```
from transformers import AutoTokenizer, AutoModelForCausalLM
import transformers
import torch
model = "lightonai/alfred-40b-0723"
tokenizer = AutoTokenizer.from_pretrained(model)
pipeline = transformers.pipeline(
"text-generation",
model=model,
tokenizer=tokenizer,
torch_dtype=torch.bfloat16,
trust_remote_code=True,
device_map="auto",
)
sequences = pipeline(
"Write a short text to announce that the new transformer model Alfred is available in open-source on Huggingface, include emojis.",
max_length=200,
do_sample=True,
top_k=10,
num_return_sequences=1,
eos_token_id=tokenizer.eos_token_id,
)
for seq in sequences:
print(f"Result: {seq['generated_text']}")
```
## Training Details
### Training Data
Alfred-40B-0723 was trained on a mixture of publicly available and in-house curated datasets.
| **Data source** |
|--------------------|
| [oasst1](https://huggingface.co/datasets/OpenAssistant/oasst1) |
| [hh-rlhf](https://huggingface.co/datasets/Anthropic/hh-rlhf) |
| [dolly](https://huggingface.co/datasets/databricks/databricks-dolly-15k) |
| [NatInstV2](https://github.com/allenai/natural-instructions) |
| momentum-internal |
`momentum-internal` is a collection of prompts rated as gold quality from the staff of LightOn in their daily workflow.
### Training Procedure
`Alfred-40B-0723` was trained on 128 A100 40GB GPUs, using a 3D parallelism strategy (TP=8, PP=4, DP=4) combined with ZeRO. The value model is initialized from the reward model and does not have any shared parameters with the policy network.
#### Preprocessing
Samples from each of the datasets have been programmatically formatted to chat, instructions and few-shot promtps.
#### Training Hyperparameters
##### Policy and Value Optimizer Config
| **Hyperparameter** | **Value** | **Comment** |
|--------------------|------------|-------------------------------------------|
| Precision | `bfloat16` | |
| Optimizer | AdamW | |
| Learning rate | 1.85e-6 | 10 warm-up steps, cosine decay over a 100 steps to 1.85e-7 |
##### Trainer config
| **Hyperparameter** | **Value** |
|--------------------|------------|
| Num Rollouts | 1024 |
| Policy Epochs | 1 |
| Value Epochs | 1 |
| KL Coef | 0.01 |
| Gamma | 1.0 |
| GAE Lambda | 0.95 |
| Clip Range Policy | 0.2 |
| Clip Range Value | 0.2 |
| Whiten Advantages | `true` |
| Whiten Rewards | `false` |
| Score on EOD | `true` |
| Max Steps | 200 |
| PPO steps/epoch | 1 |
| Value steps/epoch | 8 |
##### Trajectory data config
| **Hyperparameter** | **Value** |
|----------------------|------------|
| Continuation Max Len | 1024 |
| Continuation Min Len | 0 |
| Top P | 1.0 |
| Temperature | 1.0 |
##### Of interest to the community
The following hyper parameters have not been extensively explored and should not be taken as a gold standard:
- learning rate
- number of rollouts
- number of epochs
- steps per epoch
## Evaluation
Initial evaluation results derived from the EleutherAI harness are as follows:
- Arithmetic capabilities exhibit a significant decline.
- Common Sense, Paraphrase, Reasoning, and Reading Comprehension remain relatively stable.
- Natural Language Inference (NLI) demonstrates improvement while Question Answering (QA) shows deterioration.
These outcomes align with existing literature expectations. It is worth noting that benchmark metrics do not necessarily align with human preferences. Moreover, all these metrics employ a Select methodology which penalizes RLHF models due to their sub-standard calibration compared to raw LLMs.
**Human evaluation is currently underway.**
### Compute Infrastructure
#### Hardware
Alfred-40B-0723 was trained on AWS SageMaker, on 128 A100 40GB GPUs in P4d instances.
#### Software
Alfred-40B-0723 was trained with a custom RLHF codebase. Training leverages a 3D parallelism approach combined with ZeRO, as well as high-performance kernels such as FlashAttention.
## Model Card Contact
[email protected] |