promptfoo--promptfoo/site/docs/providers/openllm.md

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OpenLLM	Deploy and serve open-source LLMs efficiently using BentoML's OpenLLM framework for production-ready model inference

OpenLLM

To use OpenLLM with promptfoo, we take advantage of OpenLLM's support for OpenAI-compatible endpoint.

1. Start the server using the openllm start command.

2. Set environment variables:

   • Set OPENAI_BASE_URL to http://localhost:8001/v1
   • Set OPENAI_API_KEY to a dummy value foo.

3. Depending on your use case, use the chat or completion model types.

   Chat format example: To run a Llama2 eval using chat-formatted prompts, first start the model:

   openllm start llama --model-id meta-llama/Llama-2-7b-chat-hf
   

   Then set the promptfoo configuration:

   providers:
     - openai:chat:llama2
   

   Completion format example: To run a Flan eval using completion-formatted prompts, first start the model:

   openllm start flan-t5 --model-id google/flan-t5-large
   

   Then set the promptfoo configuration:

   providers:
     - openai:completion:flan-t5
   

4. See OpenAI provider documentation for more details.