[Bug]: 自定义模型没有使用自定义api_host

[zodiacg]

这个bug是否已存在现有issue了？

• 我确认没有已有issue，且已阅读常见问题。

错误表现

使用自定义模型添加模型：

"extra_model_metadata": {
        "GLM-4": {
            "model_type": "OpenAIVision",
            "model_name": "glm-4",
            "multimodal": false,
            "api_host": "http://one-api:3000/",
            "api_key": "sk-XXXXXXXXXXXXXXXXXX",
         }
}

选择模型进行使用时，会报错：

{    "error": {        "message": "Incorrect API key provided: sk-XX*****************************XXX. You can find your API key at https://platform.openai.com/account/api-keys.",        "type": "invalid_request_error",        "param": null,        "code": "invalid_api_key"    }}

经检查发现OpenAPIVision中第40行处，虽然使用api_host生成了新的API URL，但并没有使用。实际使用中使用的是shared.state中的对应OpenAI原始URL

复现操作

1. Docker部署Chuanhu Chat和OneAPI
2. 使用自定义模型添加模型：

"extra_model_metadata": {
        "GLM-4": {
            "model_type": "OpenAIVision",
            "model_name": "glm-4",
            "multimodal": false,
            "api_host": "http://one-api:3000/",
            "api_key": "sk-XXXXXXXXXXXXXXXXXX",
         }
}

4. 使用时选择自定义模型
5. 控制台报错Incorrect API key

错误日志

No response

运行环境

• OS: Ubuntu 22.04
• Browser: Firefox
• Gradio version:
• Python version:

帮助解决

• 我愿意协助解决！

补充说明

No response

[GaiZhenbiao]

我看看

[vc12345679]

举例： extra_model_metadata 设置如下时

"extra_model_metadata": {
      "DeepSeek V2": {
            "model_name": "deepseek-chat",
            "description": "This is DeepSeek's powerful open source LLM.",
            "model_type": "OpenAIVision",
            "multimodal": false,
            "api_host": "https://api.deepseek.com",
            "api_key": "sk-xxxxxxxx",
            "token_limit": 4096,
            "system": "You are a helpful AI assistant.",
            "placeholder": {
                "logo": "https://avatars.githubusercontent.com/u/148330874",
            }
      },
},

OpenAIVision.py 里 __init__(), _get_response(), _single_query_at_once() 三个函数中的变量分别为

self.api_host				https://api.deepseek.com
self.chat_completion_url		https://api.deepseek.com/v1/chat/completions
self.images_completion_url		https://api.deepseek.com/v1/images/generations
self.openai_api_base			https://api.deepseek.com/v1
self.balance_api_url			https://api.deepseek.com/dashboard/billing/credit_grants
self.usage_api_url			https://api.deepseek.com/dashboard/billing/usage
shared.state.chat_completion_url	https://api.openai.com/v1/chat/completions
CHAT_COMPLETION_URL			https://api.openai.com/v1/chat/completions

但 requests.post() 时的 url 为 shared.state.chat_completion_url，应更正为 self.chat_completion_url #1125 。更正后运行正常