> ## Documentation Index
> Fetch the complete documentation index at: https://docs.galadriel.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Models

## Large language models

The Proof of Sentience API chat API currently supports all OpenAI models.

### Fine-tuned models

The API supports using fine-tuned models hosted by OpenAI. To use your fine-tuned model, you need to:

1. Specify your fine-tuned model name in the model field. For example: `ft:gpt-4o-2024-08-06:personal::abcdefg`
2. Add an extra header `Fine-Tune-Authorization` with your OpenAI API key that has the correct access to your model in Bearer format(see code examples below).

<CodeGroup>
  ```python Python theme={null}
  from openai import OpenAI

  client = OpenAI(
      base_url="https://api.galadriel.com/v1/verified",
      api_key=GALADRIEL_API_KEY
  )

  completion = client.chat.completions.create(
      model="ft:gpt-4o-2024-08-06:personal::abcdefg",
      messages=[
          {"role": "system", "content": "You are a helpful assistant."},
          {"role": "user", "content": "Hello!"}
      ],
      extra_headers={
          "Fine-Tune-Authorization": "Bearer your-openai-fine-tune-api-key"
      }
  )

  print(f"Message: {completion.choices[0].message}")
  print(f"Hash: {completion.hash}")
  print(f"Signed public key: {completion.public_key}")
  print(f"Signature: {completion.signature}")
  print(f"Tx hash: {completion.tx_hash}")
  print(f"Attestation: {completion.attestation}")

  ```

  ```javascript Javascript theme={null}
  import OpenAI from "openai";

  const openai = new OpenAI({
    apiKey: process.env.GALADRIEL_API_KEY,
    baseURL: "https://api.galadriel.com/v1/verified",
  });

  const completion = await openai.chat.completions.create({
    model: "ft:gpt-4o-2024-08-06:personal::abcdefg",
    messages: [
      { role: "system", content: "You are a helpful assistant." },
      { role: "user", content: "Hello!" },
    ],
    headers: {
      "Fine-Tune-Authorization": "Bearer your-openai-fine-tune-api-key"
    }
  });

  console.log(`Message: ${completion.choices[0].message}`);
  console.log(`Hash: ${completion.hash}`);
  console.log(`Signed public key: ${completion.public_key}`);
  console.log(`Signature: ${completion.signature}`);
  console.log(`Tx hash: ${completion.tx_hash}`);
  console.log(`Attestation: ${completion.attestation}`);
  ```

  ```bash cURL theme={null}
  curl -X 'POST' \
    'https://api.galadriel.com/v1/verified/chat/completions' \
    -H 'accept: application/json' \
    -H 'Authorization: Bearer $GALADRIEL_API_KEY' \
    -H 'Fine-Tune-Authorization: Bearer your-openai-fine-tune-api-key' \
    -H 'Content-Type: application/json' \
    -d '{
    "model": "ft:gpt-4o-2024-08-06:personal::abcdefg",
    "messages": [
      {
        "content": "You are a helpful assistant.",
        "role": "system"
      },
      {
        "content": "Hello!",
        "role": "user"
      }
    ]
  }'
  ```
</CodeGroup>