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Authentication

Configure authentication for Hugging Face Hub and W&B.

Hugging Face Token

Environment Variable

export HF_TOKEN="hf_xxxxxxxxxxxxxxxxxxxxx"

In Python

from autotrain.trainers.clm.params import LLMTrainingParams

params = LLMTrainingParams(
    model="google/gemma-3-270m",
    data_path="./data.jsonl",
    project_name="my-model",
    token="hf_xxxxxxxxxxxxxxxxxxxxx",  # HF token
)

Getting a Token

  1. Go to huggingface.co/settings/tokens
  2. Click “New token”
  3. Select “Write” access for push to hub
  4. Copy the token

W&B Token

Environment Variable

export WANDB_API_KEY="xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"

In Python

params = LLMTrainingParams(
    model="google/gemma-3-270m",
    data_path="./data.jsonl",
    project_name="my-model",
    log="wandb",
    wandb_token="xxxxxxxxxxxxxxxxxxxxxxxx",
)

Getting a Token

  1. Go to wandb.ai/authorize
  2. Copy your API key

Push to Hub

To push models to Hugging Face Hub:
params = LLMTrainingParams(
    model="google/gemma-3-270m",
    data_path="./data.jsonl",
    project_name="my-model",
    push_to_hub=True,
    username="your-hf-username",
    token="hf_xxxxxxxxxxxxxxxxxxxxx",
)

Private Models

Access private models with your token:
# Set environment variable
import os
os.environ["HF_TOKEN"] = "hf_xxxxxxxxxxxxxxxxxxxxx"

# Or pass directly
params = LLMTrainingParams(
    model="your-org/private-model",
    data_path="./data.jsonl",
    project_name="my-model",
    token="hf_xxxxxxxxxxxxxxxxxxxxx",
)

Private Datasets

Access private datasets:
params = LLMTrainingParams(
    model="google/gemma-3-270m",
    data_path="your-org/private-dataset",  # HF dataset ID
    project_name="my-model",
    token="hf_xxxxxxxxxxxxxxxxxxxxx",
)

Secure Token Handling

Using .env Files

# .env
HF_TOKEN=hf_xxxxxxxxxxxxxxxxxxxxx
WANDB_API_KEY=xxxxxxxxxxxxxxxxxxxxxxxx
from dotenv import load_dotenv
import os

load_dotenv()

params = LLMTrainingParams(
    model="google/gemma-3-270m",
    data_path="./data.jsonl",
    project_name="my-model",
    token=os.getenv("HF_TOKEN"),
)

Never Commit Tokens

Add to .gitignore:
.env
*.token

Next Steps