diff --git a/README.md b/README.md
index c1ef90a4..33ef5f09 100644
--- a/README.md
+++ b/README.md
@@ -45,7 +45,7 @@ TradingAgents 支援業界領先的多家 LLM 提供商，並為每個模型配
 |--------|---------|----------|----------------|
 | **OpenAI** | GPT-5.1, GPT-5 Mini/Nano, GPT-4.1 Mini/Nano, o4-mini | `https://api.openai.com/v1` | ✅ 是 |
 | **Anthropic** | Claude Haiku 4.5, Claude Sonnet 4.5/4.0, Claude 3.5 Haiku, Claude 3 Haiku | `https://api.anthropic.com/` | ✅ 是 |
-| **Gemini** | Gemini 2.5 Pro, Gemini 2.5 Flash, Gemini 2.5 Flash Lite, Gemini 2.0 Flash, Gemini 2.0 Flash Lite | `https://generativelanguage.googleapis.com/v1beta` | ✅ 是 |
+| **Gemini** | Gemini 2.5 Pro, Gemini 2.5 Flash, Gemini 2.5 Flash Lite, Gemini 2.0 Flash, Gemini 2.0 Flash Lite | `https://generativelanguage.googleapis.com/v1beta/openai/` | ✅ 是 |
 | **Grok (xAI)** | Grok-4.1 Fast, Grok-4 Fast, Grok-4, Grok-3, Grok-3 Mini | `https://api.x.ai/v1` | ✅ 是 |
 | **DeepSeek** | DeepSeek Reasoner, DeepSeek Chat | `https://api.deepseek.com` | ✅ 是 |
 | **Qwen (Alibaba)** | Qwen3-Max, Qwen-Plus, Qwen Flash | `https://dashscope-intl.aliyuncs.com/compatible-mode/v1` | ✅ 是 |
diff --git a/cli/utils.py b/cli/utils.py
index 01ea4756..e865dda4 100644
--- a/cli/utils.py
+++ b/cli/utils.py
@@ -429,7 +429,7 @@ def select_llm_provider() -> tuple[str, str]:
     BASE_URLS = [
         ("OpenAI", "https://api.openai.com/v1"),
         ("Anthropic", "https://api.anthropic.com/"),
-        ("Google", "https://generativelanguage.googleapis.com/v1beta"),
+        ("Google", "https://generativelanguage.googleapis.com/v1beta/openai/"),
         ("Grok", "https://api.x.ai/v1"),
         ("DeepSeek", "https://api.deepseek.com"),
         ("Qwen", "https://dashscope-intl.aliyuncs.com/compatible-mode/v1"),
diff --git a/frontend/components/analysis/AnalysisForm.tsx b/frontend/components/analysis/AnalysisForm.tsx
index 99900e49..e65274b5 100644
--- a/frontend/components/analysis/AnalysisForm.tsx
+++ b/frontend/components/analysis/AnalysisForm.tsx
@@ -533,7 +533,7 @@ export function AnalysisForm({ onSubmit, loading = false }: AnalysisFormProps) {
                         <SelectItem value="https://api.anthropic.com/">
                           Anthropic
                         </SelectItem>
-                        <SelectItem value="https://generativelanguage.googleapis.com/v1">
+                        <SelectItem value="https://generativelanguage.googleapis.com/v1beta/openai/">
                           Google (Gemini)
                         </SelectItem>
                         <SelectItem value="https://api.x.ai/v1">
@@ -552,7 +552,7 @@ export function AnalysisForm({ onSubmit, loading = false }: AnalysisFormProps) {
                     {(![
                       "https://api.openai.com/v1",
                       "https://api.anthropic.com/",
-                      "https://generativelanguage.googleapis.com/v1",
+                      "https://generativelanguage.googleapis.com/v1beta/openai/",
                       "https://api.x.ai/v1",
                       "https://api.deepseek.com",
                       "https://dashscope-intl.aliyuncs.com/compatible-mode/v1",
@@ -632,7 +632,7 @@ export function AnalysisForm({ onSubmit, loading = false }: AnalysisFormProps) {
                         <SelectItem value="https://api.anthropic.com/">
                           Anthropic
                         </SelectItem>
-                        <SelectItem value="https://generativelanguage.googleapis.com/v1">
+                        <SelectItem value="https://generativelanguage.googleapis.com/v1beta/openai/">
                           Google (Gemini)
                         </SelectItem>
                         <SelectItem value="https://api.x.ai/v1">
@@ -651,7 +651,7 @@ export function AnalysisForm({ onSubmit, loading = false }: AnalysisFormProps) {
                     {(![
                       "https://api.openai.com/v1",
                       "https://api.anthropic.com/",
-                      "https://generativelanguage.googleapis.com/v1",
+                      "https://generativelanguage.googleapis.com/v1beta/openai/",
                       "https://api.x.ai/v1",
                       "https://api.deepseek.com",
                       "https://dashscope-intl.aliyuncs.com/compatible-mode/v1",