Benchmark LLM Performance on Legal Documents with Google Sheets and OpenRouter

## Data format
Our Tests Sheet contains the following columns:
- ID: A unique identifier for each row
- Test No.: The test that the LLM was given
- AI Platform: The LLM that was given the test.
- Relevant Source: The file name of the source document that was given to the LLM.
- URL: The Google Drive URL where the file is stored.
- Input: The input prompt that the LLM was given.
- Output: The response that the LLM gave.