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LlamaEdge allows you to chat with LLMs of GGUF format both locally and via chat service.
  • LlamaEdgeChatService provides developers an OpenAI API compatible service to chat with LLMs via HTTP requests.
  • LlamaEdgeChatLocal enables developers to chat with LLMs locally (coming soon).
Both LlamaEdgeChatService and LlamaEdgeChatLocal run on the infrastructure driven by WasmEdge Runtime, which provides a lightweight and portable WebAssembly container environment for LLM inference tasks.

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Chat via API Service

LlamaEdgeChatService works on the llama-api-server. Following the steps in llama-api-server quick-start, you can host your own API service so that you can chat with any models you like on any device you have anywhere as long as the internet is available. 
from langchain_community.chat_models.llama_edge import LlamaEdgeChatService
from langchain.messages import HumanMessage, SystemMessage

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Chat with LLMs in the non-streaming mode

# service url
service_url = "https://b008-54-186-154-209.ngrok-free.app"

# create wasm-chat service instance
chat = LlamaEdgeChatService(service_url=service_url)

# create message sequence
system_message = SystemMessage(content="You are an AI assistant")
user_message = HumanMessage(content="What is the capital of France?")
messages = [system_message, user_message]

# chat with wasm-chat service
response = chat.invoke(messages)

print(f"[Bot] {response.content}")

[Bot] Hello! The capital of France is Paris.

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Chat with LLMs in the streaming mode

# service url
service_url = "https://b008-54-186-154-209.ngrok-free.app"

# create wasm-chat service instance
chat = LlamaEdgeChatService(service_url=service_url, streaming=True)

# create message sequence
system_message = SystemMessage(content="You are an AI assistant")
user_message = HumanMessage(content="What is the capital of Norway?")
messages = [
    system_message,
    user_message,
]

output = ""
for chunk in chat.stream(messages):
    # print(chunk.content, end="", flush=True)
    output += chunk.content

print(f"[Bot] {output}")

[Bot]   Hello! I'm happy to help you with your question. The capital of Norway is Oslo.
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