LLM OpenAI

概述

LLM OpenAI 组件提供与 OpenAI 及 OpenAI 兼容 API（Azure OpenAI、Ollama 等）的集成。

配置

设置

answers.json

{
  "component-llm-openai": {
    "api_key": "sk-xxx...",
    "api_base": "https://api.openai.com/v1",
    "default_model": "gpt-4"
  }
}

用于 Azure OpenAI

{
  "component-llm-openai": {
    "api_key": "your-azure-key",
    "api_base": "https://your-resource.openai.azure.com",
    "api_type": "azure",
    "api_version": "2024-02-15-preview",
    "deployment_name": "gpt-4"
  }
}

在 Flows 中使用

基础 Completion

- id: ask_llm
  type: llm
  config:
    model: "gpt-4"
    prompt: "What is the capital of France?"
  next: use_response

配合 System Prompt

- id: classify
  type: llm
  config:
    model: "gpt-4"
    system_prompt: |
      You are a customer service intent classifier.
      Classify the user's message into one of: greeting, question, complaint, other.
      Respond with JSON: {"intent": "...", "confidence": 0.0-1.0}
    prompt: "{{message}}"
    output_format: json
  next: route_intent

Chat Completion

- id: chat
  type: llm
  config:
    model: "gpt-4"
    messages:
      - role: system
        content: "You are a helpful assistant."
      - role: user
        content: "{{user_message}}"
    temperature: 0.7
    max_tokens: 500

配合 Function Calling

- id: extract_entities
  type: llm
  config:
    model: "gpt-4"
    prompt: "Extract order information from: {{message}}"
    functions:
      - name: extract_order
        description: "Extract order details"
        parameters:
          type: object
          properties:
            order_id:
              type: string
              description: "The order ID"
            product:
              type: string
              description: "Product name"
          required: ["order_id"]
    function_call: "auto"

参数

参数	类型	默认值	说明
model	string	”gpt-4”	模型名称
prompt	string	-	用户提示词
system_prompt	string	-	系统消息
messages	array	-	完整消息数组
temperature	float	1.0	创造性（0-2）
max_tokens	int	-	最大响应 token 数
output_format	string	”text”	"text" 或 "json"
functions	array	-	函数定义
function_call	string	”auto”	函数调用模式

响应处理

- id: ask_llm
  type: llm
  config:
    model: "gpt-4"
    prompt: "{{question}}"
  output: llm_response
  next: use_response

- id: use_response
  type: reply
  config:
    message: "{{llm_response}}"

错误处理

- id: safe_llm_call
  type: llm
  config:
    model: "gpt-4"
    prompt: "{{message}}"
    timeout: 30000
    retry_count: 3
  on_error: handle_error
  next: success

- id: handle_error
  type: reply
  config:
    message: "I'm having trouble processing that. Please try again."

下一步

• Templates Component
• fast2flow