Axolotl

Axolotl is a tool designed to streamline the fine-tuning of various AI models, offering support for multiple configurations and architectures.

Introduction
Supported Features
Quickstart
Installation
Dataset
- How to Add Custom Prompts
- How to Use Custom Pretokenized Dataset
Config
Common Errors
Need Help?
Badge
Community Showcase
Contributing

Axolotl provides a unified repository for fine-tuning
a variety of AI models with ease

Go ahead and axolotl questions!!

Axolotl supports

	fp16/fp32	lora	qlora	gptq	gptq w/flash attn	flash attn	xformers attn
llama	✅	✅	✅	✅	✅	✅	✅
Pythia	✅	✅	✅	❌	❌	❌	❓
cerebras	✅	✅	✅	❌	❌	❌	❓
mpt	✅	❌	❓	❌	❌	❌	❓
falcon	✅	✅	✅	❌	❌	❌	❓
gpt-j	✅	✅	✅	❌	❌	❓	❓
XGen	✅	❓	✅	❓	❓	❓	✅

Quickstart ⚡

Get started with Axolotl in just a few steps! This quickstart guide will walk you through setting up and running a basic fine-tuning task.

Requirements: Python >=3.9 and Pytorch >=2.0.

git clone https://github.com/OpenAccess-AI-Collective/axolotl
cd axolotl

pip3 install -e .[flash-attn]
pip3 install -U git+https://github.com/huggingface/peft.git

# finetune lora
accelerate launch scripts/finetune.py examples/openllama-3b/lora.yml

# inference
accelerate launch scripts/finetune.py examples/openllama-3b/lora.yml \
    --inference --lora_model_dir="./lora-out"

Installation

Environment

Docker
```
docker run --gpus '"all"' --rm -it winglian/axolotl:main-py3.10-cu118-2.0.1
```
- winglian/axolotl-runpod:main-latest: for runpod or use this direct link
Or run on the current files for development:
```
docker compose up -d
```
Conda/Pip venv
1. Install python >=3.9
2. Install pytorch stable https://pytorch.org/get-started/locally/
3. Install axolotl along with python dependencies
```
pip3 install -e .[flash-attn]
```

LambdaLabs

Click to Expand

Install python

sudo apt update
sudo apt install -y python3.9

sudo update-alternatives --install /usr/bin/python python /usr/bin/python3.9 1
sudo update-alternatives --config python # pick 3.9 if given option
python -V # should be 3.9

Install pip

wget https://bootstrap.pypa.io/get-pip.py
python get-pip.py

Install torch

pip3 install -U torch --index-url https://download.pytorch.org/whl/cu118

Axolotl

git clone https://github.com/OpenAccess-AI-Collective/axolotl
cd axolotl

pip3 install -e .
pip3 install protobuf==3.20.3
pip3 install -U --ignore-installed requests Pillow psutil scipy

Set path

export LD_LIBRARY_PATH=/usr/lib/x86_64-linux-gnu:$LD_LIBRARY_PATH

Windows: Please use WSL or Docker!

Dataset

Axolotl supports a variety of dataset formats. Below are some of the formats you can use. Have dataset(s) in one of the following format (JSONL recommended):

alpaca: instruction; input(optional)

{"instruction": "...", "input": "...", "output": "..."}

sharegpt:chat: conversations where from is human/gpt

{"conversations": [{"from": "...", "value": "..."}]}

completion: raw corpus
```
{"text": "..."}
```

See other formats

jeopardy: question and answer

{"question": "...", "category": "...", "answer": "..."}

oasst: instruction

{"INSTRUCTION": "...", "RESPONSE": "..."}

gpteacher: instruction; input(optional)

{"instruction": "...", "input": "...", "response": "..."}

reflection: instruction with reflect; input(optional)

{"instruction": "...", "input": "...", "output": "...", "reflection": "...", "corrected": "..."}

explainchoice: question, choices, (solution OR explanation)

{"question": "...", "choices": ["..."], "solution": "...", "explanation": "..."}

concisechoice: question, choices, (solution OR explanation)

{"question": "...", "choices": ["..."], "solution": "...", "explanation": "..."}

summarizetldr: article and summary
```
{"article": "...", "summary": "..."}
```

alpaca_chat: basic instruct for alpaca chat

{"instruction": "...", "input": "...", "response": "..."}

alpaca_chat.load_qa: question and answer for alpaca chat
```
{"question": "...", "answer": "..."}
```
alpaca_chat.load_concise: question and answer for alpaca chat, for concise answers
```
{"instruction": "...", "input": "...", "response": "..."}
```
alpaca_chat.load_camel_ai: question and answer for alpaca chat, for load_camel_ai
```
{"message_1": "...", "message_2": "..."}
```
alpaca_w_system.load_open_orca: support for open orca datasets with included system prompts, instruct
```
{"system_prompt": "...", "question": "...", "response": "..."}
```

context_qa: in context question answering from an article

{"article": "...", "question": "...", "answer": "..."}

context_qa.load_404: in context question answering from an article, with default response for no answer from context
```
{"article": "...", "unanswerable_question": "..."}
```
creative_acr.load_answer: instruction and revision
```
{"instruction": "...", "revision": "..."}
```

creative_acr.load_critique: critique

{"scores": "...", "critiques": "...", "instruction": "...", "answer": "..."}

creative_acr.load_revise: critique and revise

{"scores": "...", "critiques": "...", "instruction": "...", "answer": "...", "revision": "..."}

pygmalion: pygmalion

{"conversations": [{"role": "...", "value": "..."}]}

metharme: instruction, adds additional eos tokens
```
{"prompt": "...", "generation": "..."}
```
sharegpt_simple.load_role: conversations where role is used instead of from
```
{"conversations": [{"role": "...", "value": "..."}]}
```
sharegpt_simple.load_guanaco: conversations where from is prompter/assistant instead of default sharegpt
```
{"conversations": [{"from": "...", "value": "..."}]}
```
sharegpt_jokes: creates a chat where bot is asked to tell a joke, then explain why the joke is funny
```
{"conversations": [{"title": "...", "text": "...", "explanation": "..."}]}
```

How to add custom prompts

Using yaml. Example:

datasets:
  - path: repo
    type:
      system_prompt: ""
      no_input_format: |-
        User: {instruction}<|end_of_turn|>
        Assistant:
      format: |-
        User: {instruction}
        {input}<|end_of_turn|>
        Assistant:

Using file:

Add your method to a file in prompt_strategies. Please see other files as example.
Use your custom file name as the dataset type <prompt_strategies_file>.load_<load_fn>.

How to use your custom pretokenized dataset

Do not pass a type:
Dataset must contain input_ids, attention_mask, labels in columns

Config

See examples for quick start. It is recommended to duplicate and modify to your needs. The most important options are:

model

base_model: ./llama-7b-hf # local or huggingface repo

Note: The code will load the right architecture.

dataset

sequence_len: 2048 # max token length for prompt

# huggingface repo
datasets:
  - path: vicgalle/alpaca-gpt4
    type: alpaca # format from earlier

# huggingface repo with specific configuration/subset
datasets:
  - path: EleutherAI/pile
    name: enron_emails
    type: completion # format from earlier

# huggingface repo with multiple named configurations/subsets
datasets:
  - path: bigcode/commitpackft
    name:
      - ruby
      - python
      - typescript
    type: ... # unimplemented custom format

# local
datasets:
  - path: data.jsonl # or json
    ds_type: json # see other options below
    type: alpaca

load_in_4bit: true
load_in_8bit: true
bf16: true # require >=ampere
fp16: true
tf32: true # require >=ampere
bfloat16: true # require >=ampere, use instead of bf16 when you don't want AMP (automatic mixed precision)
float16: true # use instead of fp16 when you don't want AMP

Note: Repo does not do 4-bit quantization.

lora

adapter: lora # qlora or leave blank for full finetune
lora_r: 8
lora_alpha: 16
lora_dropout: 0.05
lora_target_modules:
  - q_proj
  - v_proj

All yaml options

# this is the huggingface model that contains *.pt, *.safetensors, or *.bin files
# this can also be a relative path to a model on disk
base_model: ./llama-7b-hf
# you can specify an ignore pattern if the model repo contains more than 1 model type (*.pt, etc)
base_model_ignore_patterns:
# if the base_model repo on hf hub doesn't include configuration .json files,
# you can set that here, or leave this empty to default to base_model
base_model_config: ./llama-7b-hf
# you can specify to choose a specific model revision from huggingface hub
model_revision:
# Optional tokenizer configuration override in case you want to use a different tokenizer
# than the one defined in the base model
tokenizer_config:
# If you want to specify the type of model to load, AutoModelForCausalLM is a good choice too
model_type: AutoModelForCausalLM
# Corresponding tokenizer for the model AutoTokenizer is a good choice
tokenizer_type: AutoTokenizer
# Trust remote code for untrusted source
trust_remote_code:
# use_fast option for tokenizer loading from_pretrained, default to True
tokenizer_use_fast:
# Whether to use the legacy tokenizer setting, defaults to True
tokenizer_legacy:
# resize the model embeddings when new tokens are added to multiples of 32
# this is reported to improve training speed on some models
resize_token_embeddings_to_32x:

# whether you are training a 4-bit GPTQ quantized model
gptq: true
gptq_groupsize: 128 # group size
gptq_model_v1: false # v1 or v2

# this will attempt to quantize the model down to 8 bits and use adam 8 bit optimizer
load_in_8bit: true
# use bitsandbytes 4 bit
load_in_4bit:

# Use CUDA bf16
bf16: true # bool or 'full' for `bf16_full_eval`. require >=ampere
# Use CUDA fp16
fp16: true
# Use CUDA tf32
tf32: true # require >=ampere

# No AMP (automatic mixed precision)
bfloat16: true # require >=ampere
float16: true

# a list of one or more datasets to finetune the model with
datasets:
  # hf dataset repo | "json" for local dataset, make sure to fill data_files
  - path: vicgalle/alpaca-gpt4
  # The type of prompt to use for training. [alpaca, sharegpt, gpteacher, oasst, reflection]
    type: alpaca # format | format:<prompt_style> (chat/instruct) | <prompt_strategies>.load_<load_fn>
    ds_type: # Optional[str] (json|arrow|parquet) defines the datatype when path is a file
    data_files: # path to source data files
    shards: # number of shards to split data into
    name: # name of dataset configuration to load

  # custom user prompt
  - path: repo
    type:
      # the below are defaults. only set what's needed.
      system_prompt: ""
      field_system: system
      field_instruction: instruction
      field_output: input

      # customizable to be single line or multi-line
      system_format: "{system}"
      # 'format' can include {input}
      format: |-
        User: {instruction} {input}
        Assistant:
      # 'no_input_format' cannot include {input}
      no_input_format: "{instruction} "

# axolotl attempts to save the dataset as an arrow after packing the data together so
# subsequent training attempts load faster, relative path
dataset_prepared_path: data/last_run_prepared
# push prepared dataset to hub
push_dataset_to_hub: # repo path
# push checkpoints to hub
hub_model_id: # repo path to push finetuned model
# how to push checkpoints to hub
# https://huggingface.co/docs/transformers/v4.31.0/en/main_classes/trainer#transformers.TrainingArguments.hub_strategy
hub_strategy:
# whether to use hf `use_auth_token` for loading datasets. Useful for fetching private datasets
# required to be true when used in combination with `push_dataset_to_hub`
hf_use_auth_token: # boolean
# How much of the dataset to set aside as evaluation. 1 = 100%, 0.50 = 50%, etc. 0 for no eval.
val_set_size: 0.04
# Num shards for whole dataset
dataset_shard_num:
# Index of shard to use for whole dataset
dataset_shard_idx:

# the maximum length of an input to train with, this should typically be less than 2048
# as most models have a token/context limit of 2048
sequence_len: 2048
# pad inputs so each step uses constant sized buffers
# this will reduce memory fragmentation and may prevent OOMs, by re-using memory more efficiently
pad_to_sequence_len:
# max sequence length to concatenate training samples together up to
# inspired by StackLLaMA. see https://huggingface.co/blog/stackllama#supervised-fine-tuning
# FutureWarning: This will soon be DEPRECATED
max_packed_sequence_len: 1024
# use efficient multi-packing with block diagonal attention and per sequence position_ids. Recommend set to 'true'
sample_packing:
# you can set these packing optimizations AFTER starting a training at least once.
# The trainer will provide recommended values for these values.
sample_packing_eff_est:
total_num_tokens:

# if you want to use 'lora' or 'qlora' or leave blank to train all parameters in original model
adapter: lora
# if you already have a lora model trained that you want to load, put that here
# lora hyperparameters
lora_model_dir:
lora_r: 8
lora_alpha: 16
lora_dropout: 0.05
lora_target_modules:
  - q_proj
  - v_proj
#  - k_proj
#  - o_proj
#  - gate_proj
#  - down_proj
#  - up_proj
lora_target_linear: # if true, will target all linear layers
lora_modules_to_save:
#  - embed_tokens
#  - lm_head
lora_out_dir:
lora_fan_in_fan_out: false

# ReLoRA configuration
# must use either 'lora' or 'qlora' adapter, and does not support fsdp or deepspeed
relora_steps: # number of steps per ReLoRA restart
relora_warmup_steps: # number of per-restart warmup steps
relora_cpu_offload: # true to perform lora weight merges on cpu during restarts, for modest gpu memory savings

# wandb configuration if you're using it
wandb_mode: # "offline" to save run metadata locally and not sync to the server, "disabled" to turn off wandb
wandb_project: # your wandb project name
wandb_entity: # a wandb Team name if using a Team
wandb_watch:
wandb_run_id: # set the name of your wandb run
wandb_log_model: # "checkpoint" to log model to wandb Artifacts every `save_steps` or "end" to log only at the end of training

# where to save the finished model to
output_dir: ./completed-model

# training hyperparameters
gradient_accumulation_steps: 1
micro_batch_size: 2
eval_batch_size: 2
num_epochs: 3
warmup_steps: 100
learning_rate: 0.00003
lr_quadratic_warmup:
logging_steps:
save_strategy: # set to `no` to skip checkpoint saves
save_steps: # leave empty to save at each epoch
eval_steps: # leave empty to eval at each epoch
save_total_limit: # checkpoints saved at a time
max_steps:

# save model as safetensors (require safetensors package)
save_safetensors:

# whether to mask out or include the human's prompt from the training labels
train_on_inputs: false
# group similarly sized data to minimize padding
# may be slower to start, as it must download and sort the entire dataset
# note that training loss may have an oscillating pattern with this enabled
group_by_length: false

# Whether to use gradient checkpointing https://huggingface.co/docs/transformers/v4.18.0/en/performance#gradient-checkpointing
gradient_checkpointing: false

# stop training after this many evaluation losses have increased in a row
# https://huggingface.co/transformers/v4.2.2/_modules/transformers/trainer_callback.html#EarlyStoppingCallback
early_stopping_patience: 3

# specify a scheduler and kwargs to use with the optimizer
lr_scheduler: # 'one_cycle' | 'log_sweep' | empty for cosine
lr_scheduler_kwargs:

# for one_cycle optim
lr_div_factor: # learning rate div factor

# for log_sweep optim
log_sweep_min_lr:
log_sweep_max_lr:

# specify optimizer
optimizer:
# specify weight decay
weight_decay:
# adamw hyperparams
adam_beta1:
adam_beta2:
adam_epsilon:
# Gradient clipping max norm
max_grad_norm:

# whether to bettertransformers
flash_optimum:
# whether to use xformers attention patch https://github.com/facebookresearch/xformers:
xformers_attention:
# whether to use flash attention patch https://github.com/Dao-AILab/flash-attention:
flash_attention:
# whether to use scaled-dot-product attention
# https://pytorch.org/docs/stable/generated/torch.nn.functional.scaled_dot_product_attention.html
sdp_attention:
# Landmark attention (only llama)
landmark_attention:
# xpos RoPE see https://github.com/kaiokendev/cutoff-len-is-context-len/blob/main/util/xpos_rope_llama_monkey_patch.py
# llama only
xpos_rope:
# RoPE Scaling https://github.com/huggingface/transformers/pull/24653
rope_scaling:
  type: # linear | dynamic
  factor: # float

# resume from a specific checkpoint dir
resume_from_checkpoint:
# if resume_from_checkpoint isn't set and you simply want it to start where it left off
# be careful with this being turned on between different models
auto_resume_from_checkpoints: false

# don't mess with this, it's here for accelerate and torchrun
local_rank:

# add or change special tokens
special_tokens:
  # bos_token: "<s>"
  # eos_token: "</s>"
  # unk_token: "<unk>"
# add extra tokens
tokens:

# FSDP
fsdp:
fsdp_config:

# Deepspeed config path
deepspeed:

# Advanced DDP Arguments
ddp_timeout:
ddp_bucket_cap_mb:
ddp_broadcast_buffers:

# Path to torch distx for optim 'adamw_anyprecision'
torchdistx_path:

# Set to HF dataset for type: 'completion' for streaming instead of pre-tokenize
pretraining_dataset:

# Debug mode
debug:

# Seed
seed:

# Allow overwrite yml config using from cli
strict:

Train

Run

accelerate launch scripts/finetune.py your_config.yml

Multi-GPU

You can optionally pre-tokenize dataset with the following before finetuning:

CUDA_VISIBLE_DEVICES="" accelerate ... --prepare_ds_only

Config

llama FSDP

fsdp:
  - full_shard
  - auto_wrap
fsdp_config:
  fsdp_offload_params: true
  fsdp_state_dict_type: FULL_STATE_DICT
  fsdp_transformer_layer_cls_to_wrap: LlamaDecoderLayer

llama Deepspeed

deepspeed: deepspeed/zero3.json

Weights & Biases Logging

wandb options

wandb_mode:
wandb_project:
wandb_entity:
wandb_watch:
wandb_run_id:
wandb_log_model:

Inference

Pass the appropriate flag to the train command:

Pretrained LORA:

--inference --lora_model_dir="./lora-output-dir"

Full weights finetune:

--inference --base_model="./completed-model"

Full weights finetune w/ a prompt from a text file:

cat /tmp/prompt.txt | python scripts/finetune.py configs/your_config.yml \
  --base_model="./completed-model" --inference --prompter=None --load_in_8bit=True

Merge LORA to base

Add below flag to train command above

--merge_lora --lora_model_dir="./completed-model" --load_in_8bit=False --load_in_4bit=False

If you run out of CUDA memory, you can try to merge in system RAM with

CUDA_VISIBLE_DEVICES="" python3 scripts/finetune.py ...

Common Errors 🧰

If you encounter a 'Cuda out of memory' error, it means your GPU ran out of memory during the training process. Here's how to resolve it:

Please reduce any below

micro_batch_size
eval_batch_size
gradient_accumulation_steps
sequence_len

failed (exitcode: -9)

Usually means your system has run out of system memory. Similarly, you should consider reducing the same settings as when you run out of VRAM. Additionally, look into upgrading your system RAM which should be simpler than GPU upgrades.

RuntimeError: expected scalar type Float but found Half

Try set fp16: true

NotImplementedError: No operator found for memory_efficient_attention_forward ...

Try to turn off xformers.

accelerate config missing

It's safe to ignore it.

NCCL Timeouts during training

See the NCCL guide.

Need help? 🙋♂️

Join our Discord server where we can help you

Badge ❤🏷️

Building something cool with Axolotl? Consider adding a badge to your model card.

[<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)

Community Showcase

Check out some of the projects and models that have been built using Axolotl! Have a model you'd like to add to our Community Showcase? Open a PR with your model.

Open Access AI Collective

PocketDoc Labs

Dan's PersonalityEngine 13b LoRA

Contributing 🤝

Please read the contributing guide

Bugs? Please check the open issues else create a new Issue.

PRs are greatly welcome!

Please run below to setup env

pip3 install -r requirements-dev.txt -r requirements-tests.txt
pre-commit install

# test
pytest tests/

Glavin001/axolotl

Axolotl

Table of Contents

Axolotl supports

Quickstart ⚡

Installation

Environment

Dataset

How to add custom prompts

How to use your custom pretokenized dataset

Config

Train

Multi-GPU

Config

Weights & Biases Logging

Inference

Merge LORA to base

Common Errors 🧰

Need help? 🙋♂️

Badge ❤🏷️

Community Showcase

Contributing 🤝