Task: Use an open-source LLM (via HuggingFace)

n8n workflow:
{"meta":{"instanceId":"408f9fb9940c3cb18ffdef0e0150fe342d6e655c3a9fac21f0f644e8bedabcd9","templateCredsSetupCompleted":true},"nodes":[{"id":"27e5f0c0-ba88-4c28-b3be-99c973be15cb","name":"Sticky Note","type":"n8n-nodes-base.stickyNote","position":[-480,-140],"parameters":{"width":1083,"height":357,"content":"## This is an example of basic LLM Chain connected to an open-source model\n### The Chain is connected to the Mistral-7B-Instruct-v0.1 model, but you can change this\n\nPlease note the initial prompt that guides the model:\n```\nYou are a helpful assistant.\nPlease reply politely to the users.\nUse emojis and a text.\nQ: {{ $json.input }}\nA: \n```\n\nThis way the model \"knows\" that it needs to answer the question right after the `A: `.\n\nSince Hugging Face node is this is an inference mode, it does not support LangChain Agents at the moment. Please use [Ollama Chat Model](https://docs.n8n.io/integrations/builtin/cluster-nodes/sub-nodes/n8n-nodes-langchain.lmchatollama/) node for that"},"typeVersion":1},{"id":"4756d5a8-7027-4942-b214-a5ff8310869a","name":"When chat message received","type":"@n8n/n8n-nodes-langchain.chatTrigger","position":[-200,280],"webhookId":"bf2e38b8-566a-4aeb-8efe-28240f4a6991","parameters":{"options":{}},"typeVersion":1.1},{"id":"20a36351-8579-4ac6-9746-526b072aeaa6","name":"Basic LLM Chain","type":"@n8n/n8n-nodes-langchain.chainLlm","position":[20,280],"parameters":{"messages":{"messageValues":[{"message":"=You are a helpful assistant. Please reply politely to the users. Use emojis and a text."}]}},"typeVersion":1.5},{"id":"9b88e307-3ad5-4167-8c5f-e5827f7444ac","name":"Hugging Face Inference Model","type":"@n8n/n8n-nodes-langchain.lmOpenHuggingFaceInference","position":[120,440],"parameters":{"model":"mistralai/Mistral-7B-Instruct-v0.1","options":{"maxTokens":512,"temperature":0.8,"frequencyPenalty":2}},"credentials":{"huggingFaceApi":{"id":"ARQ5mOhvBxi283Qk","name":"HuggingFaceApi account"}},"typeVersion":1}],"pinData":{},"connections":{"When chat message received":{"main":[[{"node":"Basic LLM Chain","type":"main","index":0}]]},"Hugging Face Inference Model":{"ai_languageModel":[[{"node":"Basic LLM Chain","type":"ai_languageModel","index":0}]]}}}