diff --git a/app.py b/app.py
index 73cf796..fcdbdc2 100644
--- a/app.py
+++ b/app.py
@@ -101,6 +101,8 @@ def create_model_instance(model_id, settings, is_reasoning=False):
         api_key_id = "AlibabaApiKey"
     elif "gemini" in model_id.lower() or "google" in model_id.lower():
         api_key_id = "GoogleApiKey"
+    elif "doubao" in model_id.lower():
+        api_key_id = "DoubaoApiKey"
     
     # 首先尝试从本地配置获取API密钥
     api_key = get_api_key(api_key_id)
@@ -156,6 +158,10 @@ def create_model_instance(model_id, settings, is_reasoning=False):
             custom_base_url = api_base_urls.get('google')
             if custom_base_url:
                 base_url = custom_base_url
+        elif "doubao" in model_id.lower():
+            custom_base_url = api_base_urls.get('doubao')
+            if custom_base_url:
+                base_url = custom_base_url
     
     # 创建模型实例
     model_instance = ModelFactory.create_model(
diff --git a/config/api_base_urls.json b/config/api_base_urls.json
index f5136e7..192c0b7 100644
--- a/config/api_base_urls.json
+++ b/config/api_base_urls.json
@@ -3,5 +3,6 @@
   "OpenaiApiBaseUrl": "",
   "DeepseekApiBaseUrl": "",
   "AlibabaApiBaseUrl": "",
-  "GoogleApiBaseUrl": ""
+  "GoogleApiBaseUrl": "",
+  "DoubaoApiBaseUrl": ""
 }
\ No newline at end of file
diff --git a/config/models.json b/config/models.json
index bdd2481..3d66838 100644
--- a/config/models.json
+++ b/config/models.json
@@ -24,6 +24,11 @@
             "name": "Google",
             "api_key_id": "GoogleApiKey",
             "class_name": "GoogleModel"
+        },
+        "doubao": {
+            "name": "Doubao",
+            "api_key_id": "DoubaoApiKey",
+            "class_name": "DoubaoModel"
         }
     },
     "models": {
@@ -91,13 +96,13 @@
             "version": "latest",
             "description": "阿里通义千问VL-MAX模型，视觉理解能力最强，支持图像理解和复杂任务"
         },
-        "gemini-2.5-pro-preview-03-25": {
+        "gemini-2.5-pro": {
             "name": "Gemini 2.5 Pro",
             "provider": "google",
             "supportsMultimodal": true,
             "isReasoning": true,
-            "version": "preview-03-25",
-            "description": "Google最强大的Gemini 2.5 Pro模型，支持图像理解"
+            "version": "latest",
+            "description": "Google最强大的Gemini 2.5 Pro模型，支持图像理解（需要付费API密钥）"
         },
         "gemini-2.0-flash": {
             "name": "Gemini 2.0 Flash",
@@ -105,7 +110,15 @@
             "supportsMultimodal": true,
             "isReasoning": false,
             "version": "latest",
-            "description": "Google更快速的Gemini 2.0 Flash模型，支持图像理解，响应更迅速"
+            "description": "Google更快速的Gemini 2.0 Flash模型，支持图像理解，有免费配额"
+        },
+        "doubao-seed-1-6-250615": {
+            "name": "Doubao-Seed-1.6",
+            "provider": "doubao",
+            "supportsMultimodal": true,
+            "isReasoning": false,
+            "version": "latest",
+            "description": "支持auto/thinking/non-thinking三种思考模式、支持多模态、256K长上下文"
         }
     }
 } 
\ No newline at end of file
diff --git a/config/proxy_api.json b/config/proxy_api.json
index 0b26cb6..98e2832 100644
--- a/config/proxy_api.json
+++ b/config/proxy_api.json
@@ -4,7 +4,8 @@
     "anthropic": "",
     "deepseek": "",
     "google": "",
-    "openai": ""
+    "openai": "",
+    "doubao": ""
   },
   "enabled": true
 }
\ No newline at end of file
diff --git a/models/__init__.py b/models/__init__.py
index 336f66e..43783ce 100644
--- a/models/__init__.py
+++ b/models/__init__.py
@@ -4,6 +4,7 @@ from .openai import OpenAIModel
 from .deepseek import DeepSeekModel
 from .alibaba import AlibabaModel
 from .google import GoogleModel
+from .doubao import DoubaoModel
 from .factory import ModelFactory
 
 __all__ = [
@@ -13,5 +14,6 @@ __all__ = [
     'DeepSeekModel',
     'AlibabaModel',
     'GoogleModel',
+    'DoubaoModel',
     'ModelFactory'
 ]
diff --git a/models/alibaba.py b/models/alibaba.py
index e6b3076..4402b3c 100644
--- a/models/alibaba.py
+++ b/models/alibaba.py
@@ -4,12 +4,13 @@ from openai import OpenAI
 from .base import BaseModel
 
 class AlibabaModel(BaseModel):
-    def __init__(self, api_key: str, temperature: float = 0.7, system_prompt: str = None, language: str = None, model_name: str = None):
+    def __init__(self, api_key: str, temperature: float = 0.7, system_prompt: str = None, language: str = None, model_name: str = None, api_base_url: str = None):
         # 如果没有提供模型名称，才使用默认值
         self.model_name = model_name if model_name else "QVQ-Max-2025-03-25"
         print(f"初始化阿里巴巴模型: {self.model_name}")
         # 在super().__init__之前设置model_name，这样get_default_system_prompt能使用它
         super().__init__(api_key, temperature, system_prompt, language)
+        self.api_base_url = api_base_url  # 存储API基础URL
     
     def get_default_system_prompt(self) -> str:
         """根据模型名称返回不同的默认系统提示词"""
diff --git a/models/deepseek.py b/models/deepseek.py
index 4c314db..f324734 100644
--- a/models/deepseek.py
+++ b/models/deepseek.py
@@ -6,9 +6,10 @@ from openai import OpenAI
 from .base import BaseModel
 
 class DeepSeekModel(BaseModel):
-    def __init__(self, api_key: str, temperature: float = 0.7, system_prompt: str = None, language: str = None, model_name: str = "deepseek-reasoner"):
+    def __init__(self, api_key: str, temperature: float = 0.7, system_prompt: str = None, language: str = None, model_name: str = "deepseek-reasoner", api_base_url: str = None):
         super().__init__(api_key, temperature, system_prompt, language)
         self.model_name = model_name
+        self.api_base_url = api_base_url  # 存储API基础URL
 
     def get_default_system_prompt(self) -> str:
         return """You are an expert at analyzing questions and providing detailed solutions. When presented with an image of a question:
diff --git a/models/doubao.py b/models/doubao.py
new file mode 100644
index 0000000..6ac80b7
--- /dev/null
+++ b/models/doubao.py
@@ -0,0 +1,312 @@
+import json
+import os
+import base64
+from typing import Generator, Dict, Any, Optional
+import requests
+from .base import BaseModel
+
+class DoubaoModel(BaseModel):
+    """
+    豆包API模型实现类
+    支持字节跳动的豆包AI模型，可处理文本和图像输入
+    """
+    
+    def __init__(self, api_key: str, temperature: float = 0.7, system_prompt: str = None, language: str = None, model_name: str = None, api_base_url: str = None):
+        """
+        初始化豆包模型
+        
+        Args:
+            api_key: 豆包API密钥
+            temperature: 生成温度
+            system_prompt: 系统提示词
+            language: 首选语言
+            model_name: 指定具体模型名称，如不指定则使用默认值
+            api_base_url: API基础URL，用于设置自定义API端点
+        """
+        super().__init__(api_key, temperature, system_prompt, language)
+        self.model_name = model_name or self.get_model_identifier()
+        self.base_url = api_base_url or "https://ark.cn-beijing.volces.com/api/v3"
+        self.max_tokens = 4096  # 默认最大输出token数
+    
+    def get_default_system_prompt(self) -> str:
+        return """你是一个专业的问题分析专家。当看到问题图片时：
+1. 仔细阅读并理解问题
+2. 分解问题的关键组成部分
+3. 提供清晰的分步解决方案
+4. 如果相关，解释涉及的概念或理论
+5. 如果有多种方法，优先解释最有效的方法"""
+
+    def get_model_identifier(self) -> str:
+        """返回默认的模型标识符"""
+        return "doubao-seed-1-6-250615"  # Doubao-Seed-1.6
+    
+    def get_actual_model_name(self) -> str:
+        """根据配置的模型名称返回实际的API调用标识符"""
+        # 豆包API的实际模型名称映射
+        model_mapping = {
+            "doubao-seed-1-6-250615": "doubao-seed-1-6-250615"
+        }
+        
+        return model_mapping.get(self.model_name, "doubao-seed-1-6-250615")
+    
+    def analyze_text(self, text: str, proxies: dict = None) -> Generator[dict, None, None]:
+        """流式生成文本响应"""
+        try:
+            yield {"status": "started"}
+            
+            # 设置环境变量代理（如果提供）
+            original_proxies = None
+            if proxies:
+                original_proxies = {
+                    'http_proxy': os.environ.get('http_proxy'),
+                    'https_proxy': os.environ.get('https_proxy')
+                }
+                if 'http' in proxies:
+                    os.environ['http_proxy'] = proxies['http']
+                if 'https' in proxies:
+                    os.environ['https_proxy'] = proxies['https']
+            
+            try:
+                # 构建请求头
+                headers = {
+                    "Authorization": f"Bearer {self.api_key}",
+                    "Content-Type": "application/json"
+                }
+                
+                # 构建消息 - 根据官方API文档，暂时不使用系统提示词
+                messages = []
+                
+                # 添加用户查询
+                user_content = text
+                if self.language and self.language != 'auto':
+                    user_content = f"请使用{self.language}回答以下问题: {text}"
+                
+                messages.append({
+                    "role": "user",
+                    "content": user_content
+                })
+                
+                # 构建请求数据
+                data = {
+                    "model": self.get_actual_model_name(),
+                    "messages": messages,
+                    "temperature": self.temperature,
+                    "max_tokens": self.max_tokens,
+                    "stream": True
+                }
+                
+                # 发送流式请求
+                response = requests.post(
+                    f"{self.base_url}/chat/completions",
+                    headers=headers,
+                    json=data,
+                    stream=True,
+                    proxies=proxies if proxies else None,
+                    timeout=60
+                )
+                
+                if response.status_code != 200:
+                    error_text = response.text
+                    raise Exception(f"HTTP {response.status_code}: {error_text}")
+                
+                response.raise_for_status()
+                
+                # 初始化响应缓冲区
+                response_buffer = ""
+                
+                # 处理流式响应
+                for line in response.iter_lines():
+                    if not line:
+                        continue
+                    
+                    line = line.decode('utf-8')
+                    if not line.startswith('data: '):
+                        continue
+                    
+                    line = line[6:]  # 移除 'data: ' 前缀
+                    
+                    if line == '[DONE]':
+                        break
+                    
+                    try:
+                        chunk_data = json.loads(line)
+                        choices = chunk_data.get('choices', [])
+                        
+                        if choices and len(choices) > 0:
+                            delta = choices[0].get('delta', {})
+                            content = delta.get('content', '')
+                            
+                            if content:
+                                response_buffer += content
+                                
+                                # 发送响应进度
+                                yield {
+                                    "status": "streaming",
+                                    "content": response_buffer
+                                }
+                    
+                    except json.JSONDecodeError:
+                        continue
+                
+                # 确保发送完整的最终内容
+                yield {
+                    "status": "completed",
+                    "content": response_buffer
+                }
+            
+            finally:
+                # 恢复原始代理设置
+                if original_proxies:
+                    for key, value in original_proxies.items():
+                        if value is None:
+                            if key in os.environ:
+                                del os.environ[key]
+                        else:
+                            os.environ[key] = value
+                
+        except Exception as e:
+            yield {
+                "status": "error",
+                "error": f"豆包API错误: {str(e)}"
+            }
+    
+    def analyze_image(self, image_data: str, proxies: dict = None) -> Generator[dict, None, None]:
+        """分析图像并流式生成响应"""
+        try:
+            yield {"status": "started"}
+            
+            # 设置环境变量代理（如果提供）
+            original_proxies = None
+            if proxies:
+                original_proxies = {
+                    'http_proxy': os.environ.get('http_proxy'),
+                    'https_proxy': os.environ.get('https_proxy')
+                }
+                if 'http' in proxies:
+                    os.environ['http_proxy'] = proxies['http']
+                if 'https' in proxies:
+                    os.environ['https_proxy'] = proxies['https']
+            
+            try:
+                # 构建请求头
+                headers = {
+                    "Authorization": f"Bearer {self.api_key}",
+                    "Content-Type": "application/json"
+                }
+                
+                # 处理图像数据
+                if image_data.startswith('data:image'):
+                    # 如果是data URI，提取base64部分
+                    image_data = image_data.split(',', 1)[1]
+                
+                # 构建用户消息 - 使用豆包API官方示例格式
+                # 首先检查图像数据的格式，确保是有效的图像
+                image_format = "jpeg"  # 默认使用jpeg
+                if image_data.startswith('/9j/'):  # JPEG magic number in base64
+                    image_format = "jpeg"
+                elif image_data.startswith('iVBORw0KGgo'):  # PNG magic number in base64
+                    image_format = "png"
+                
+                user_content = [
+                    {
+                        "type": "text",
+                        "text": f"请使用{self.language}分析这张图片并提供详细解答。" if self.language and self.language != 'auto' else "请分析这张图片并提供详细解答?"
+                    },
+                    {
+                        "type": "image_url",
+                        "image_url": {
+                            "url": f"data:image/{image_format};base64,{image_data}"
+                        }
+                    }
+                ]
+                
+                messages = [
+                    {
+                        "role": "user",
+                        "content": user_content
+                    }
+                ]
+                
+                # 构建请求数据
+                data = {
+                    "model": self.get_actual_model_name(),
+                    "messages": messages,
+                    "temperature": self.temperature,
+                    "max_tokens": self.max_tokens,
+                    "stream": True
+                }
+                
+                # 发送流式请求
+                response = requests.post(
+                    f"{self.base_url}/chat/completions",
+                    headers=headers,
+                    json=data,
+                    stream=True,
+                    proxies=proxies if proxies else None,
+                    timeout=60
+                )
+                
+                if response.status_code != 200:
+                    error_text = response.text
+                    raise Exception(f"HTTP {response.status_code}: {error_text}")
+                
+                response.raise_for_status()
+                
+                # 初始化响应缓冲区
+                response_buffer = ""
+                
+                # 处理流式响应
+                for line in response.iter_lines():
+                    if not line:
+                        continue
+                    
+                    line = line.decode('utf-8')
+                    if not line.startswith('data: '):
+                        continue
+                    
+                    line = line[6:]  # 移除 'data: ' 前缀
+                    
+                    if line == '[DONE]':
+                        break
+                    
+                    try:
+                        chunk_data = json.loads(line)
+                        choices = chunk_data.get('choices', [])
+                        
+                        if choices and len(choices) > 0:
+                            delta = choices[0].get('delta', {})
+                            content = delta.get('content', '')
+                            
+                            if content:
+                                response_buffer += content
+                                
+                                # 发送响应进度
+                                yield {
+                                    "status": "streaming",
+                                    "content": response_buffer
+                                }
+                    
+                    except json.JSONDecodeError:
+                        continue
+                
+                # 确保发送完整的最终内容
+                yield {
+                    "status": "completed",
+                    "content": response_buffer
+                }
+            
+            finally:
+                # 恢复原始代理设置
+                if original_proxies:
+                    for key, value in original_proxies.items():
+                        if value is None:
+                            if key in os.environ:
+                                del os.environ[key]
+                        else:
+                            os.environ[key] = value
+                
+        except Exception as e:
+            yield {
+                "status": "error",
+                "error": f"豆包图像分析错误: {str(e)}"
+            }
diff --git a/models/factory.py b/models/factory.py
index ad5f6e2..7e07e92 100644
--- a/models/factory.py
+++ b/models/factory.py
@@ -114,6 +114,25 @@ class ModelFactory:
             )
         # 对于阿里巴巴模型，也需要传递正确的模型名称
         elif 'qwen' in model_name.lower() or 'qvq' in model_name.lower() or 'alibaba' in model_name.lower():
+            return model_class(
+                api_key=api_key,
+                temperature=temperature,
+                system_prompt=system_prompt,
+                language=language,
+                model_name=model_name
+            )
+        # 对于Google模型，也需要传递正确的模型名称
+        elif 'gemini' in model_name.lower() or 'google' in model_name.lower():
+            return model_class(
+                api_key=api_key,
+                temperature=temperature,
+                system_prompt=system_prompt,
+                language=language,
+                model_name=model_name,
+                api_base_url=api_base_url
+            )
+        # 对于豆包模型，也需要传递正确的模型名称
+        elif 'doubao' in model_name.lower():
             return model_class(
                 api_key=api_key,
                 temperature=temperature,
diff --git a/models/google.py b/models/google.py
index 6904bfe..8c7e2fb 100644
--- a/models/google.py
+++ b/models/google.py
@@ -46,7 +46,7 @@ class GoogleModel(BaseModel):
 
     def get_model_identifier(self) -> str:
         """返回默认的模型标识符"""
-        return "gemini-2.5-pro-preview-03-25"
+        return "gemini-2.0-flash"  # 使用有免费配额的模型作为默认值
     
     def analyze_text(self, text: str, proxies: dict = None) -> Generator[dict, None, None]:
         """流式生成文本响应"""
diff --git a/static/js/settings.js b/static/js/settings.js
index 87c1e2b..9783e04 100644
--- a/static/js/settings.js
+++ b/static/js/settings.js
@@ -381,6 +381,7 @@ class SettingsManager {
             'DeepseekApiKey': '',
             'AlibabaApiKey': '',
             'GoogleApiKey': '',
+            'DoubaoApiKey': '',
             'MathpixAppId': '',
             'MathpixAppKey': ''
         };
@@ -391,7 +392,8 @@ class SettingsManager {
             'OpenaiApiBaseUrl': '',
             'DeepseekApiBaseUrl': '',
             'AlibabaApiBaseUrl': '',
-            'GoogleApiBaseUrl': ''
+            'GoogleApiBaseUrl': '',
+            'DoubaoApiBaseUrl': ''
         };
         
         // 加载模型配置
@@ -759,6 +761,8 @@ class SettingsManager {
             apiKeyToHighlight = document.querySelector('.api-key-status:nth-child(4)'); // Alibaba
         } else if (modelType && (modelType.toLowerCase().includes('gemini') || modelType.toLowerCase().includes('google'))) {
             apiKeyToHighlight = document.querySelector('.api-key-status:nth-child(5)'); // Google
+        } else if (modelType && modelType.toLowerCase().includes('doubao')) {
+            apiKeyToHighlight = document.querySelector('.api-key-status:nth-child(6)'); // 豆包
         }
         
         if (apiKeyToHighlight) {
@@ -869,6 +873,9 @@ class SettingsManager {
             if (this.apiBaseUrlValues['GoogleApiBaseUrl']) {
                 apiBaseUrls.google = this.apiBaseUrlValues['GoogleApiBaseUrl'];
             }
+            if (this.apiBaseUrlValues['DoubaoApiBaseUrl']) {
+                apiBaseUrls.doubao = this.apiBaseUrlValues['DoubaoApiBaseUrl'];
+            }
         }
         
         return {
@@ -2260,6 +2267,7 @@ class SettingsManager {
             'DeepseekApiKey': '',
             'AlibabaApiKey': '',
             'GoogleApiKey': '',
+            'DoubaoApiKey': '',
             'MathpixAppId': '',
             'MathpixAppKey': ''
         };
@@ -2359,7 +2367,8 @@ class SettingsManager {
                     'OpenaiApiBaseUrl': proxyApiConfig.apis?.openai || '',
                     'DeepseekApiBaseUrl': proxyApiConfig.apis?.deepseek || '',
                     'AlibabaApiBaseUrl': proxyApiConfig.apis?.alibaba || '',
-                    'GoogleApiBaseUrl': proxyApiConfig.apis?.google || ''
+                    'GoogleApiBaseUrl': proxyApiConfig.apis?.google || '',
+                    'DoubaoApiBaseUrl': proxyApiConfig.apis?.doubao || ''
                 };
                 this.updateApiBaseUrlStatus(apiBaseUrls);
                 console.log('API基础URL状态已刷新');
@@ -2449,6 +2458,9 @@ class SettingsManager {
                 case 'GoogleApiBaseUrl':
                     config.apis.google = value;
                     break;
+                case 'DoubaoApiBaseUrl':
+                    config.apis.doubao = value;
+                    break;
             }
             
             // 确保启用中转API
diff --git a/templates/index.html b/templates/index.html
index 5432c2e..d2eee26 100644
--- a/templates/index.html
+++ b/templates/index.html
@@ -425,6 +425,28 @@
                                 </div>
                             </div>
                         </div>
+                        <div class="api-key-status">
+                            <span class="key-name">Doubao API:</span>
+                            <div class="key-status-wrapper">
+                                <!-- 显示状态 -->
+                                <div class="key-display">
+                                    <span id="DoubaoApiKeyStatus" class="key-status" data-key="DoubaoApiKey">未设置</span>
+                                    <button class="btn-icon edit-api-key" data-key-type="DoubaoApiKey" title="编辑此密钥">
+                                        <i class="fas fa-edit"></i>
+                                    </button>
+                                </div>
+                                <!-- 编辑状态 -->
+                                <div class="key-edit hidden">
+                                    <input type="password" class="key-input" data-key-type="DoubaoApiKey" placeholder="输入Doubao API key">
+                                    <button class="btn-icon toggle-visibility">
+                                        <i class="fas fa-eye"></i>
+                                    </button>
+                                    <button class="btn-icon save-api-key" data-key-type="DoubaoApiKey" title="保存密钥">
+                                        <i class="fas fa-save"></i>
+                                    </button>
+                                </div>
+                            </div>
+                        </div>
                         <div class="api-key-status">
                             <span class="key-name">Mathpix App ID:</span>
                             <div class="key-status-wrapper">
@@ -577,6 +599,25 @@
                                         </div>
                                     </div>
                                 </div>
+                                <div class="api-key-status">
+                                    <span class="key-name">Doubao API URL:</span>
+                                    <div class="key-status-wrapper">
+                                        <!-- 显示状态 -->
+                                        <div class="key-display">
+                                            <span id="DoubaoApiBaseUrlStatus" class="key-status" data-key="DoubaoApiBaseUrl">未设置</span>
+                                            <button class="btn-icon edit-api-base-url" data-key-type="DoubaoApiBaseUrl" title="编辑此URL">
+                                                <i class="fas fa-edit"></i>
+                                            </button>
+                                        </div>
+                                        <!-- 编辑状态 -->
+                                        <div class="key-edit hidden">
+                                            <input type="text" class="key-input" data-key-type="DoubaoApiBaseUrl" placeholder="https://ark.cn-beijing.volces.com/api/v3">
+                                            <button class="btn-icon save-api-base-url" data-key-type="DoubaoApiBaseUrl" title="保存URL">
+                                                <i class="fas fa-save"></i>
+                                            </button>
+                                        </div>
+                                    </div>
+                                </div>
                             </div>
                         </div>
                     </div>