There are two examples:

• prompt_example.yaml shows how to pull from portkey's prompt management platform. It requires you to set PORTKEY_API_KEY and OPENAI_API_KEY environment variables. Replace the portkey prompt with your own portkey prompt id.
• provider_example.yaml shows how to use portkey's gateway. It requires the PORTKEY_API_KEY environment variable.

Then run:

promptfoo eval

Afterwards, you can view the results by running promptfoo view