Get LLM configuration

{
  "models": [
    {
      "id": "gpt-4",
      "name": "GPT-4",
      "modelType": "language",
      "description": "Most capable GPT-4 model for complex legal analysis",
      "pricing": {
        "input": 0.03,
        "output": 0.06,
        "currency": "USD",
        "unit": "1K tokens"
      }
    },
    {
      "id": "claude-3-opus",
      "name": "Claude 3 Opus",
      "modelType": "language",
      "description": "Anthropic's most powerful model for legal reasoning"
    },
    {
      "id": "text-embedding-3-large",
      "name": "Text Embedding 3 Large",
      "modelType": "embedding",
      "description": "High-performance embeddings for semantic search"
    }
  ]
}