diff --git a/bin/console b/bin/console
index f32609139..458a8436e 100755
--- a/bin/console
+++ b/bin/console
@@ -15,6 +15,7 @@ RubyLLM.configure do |config|
   config.bedrock_session_token = ENV.fetch('AWS_SESSION_TOKEN', nil)
   config.deepseek_api_key = ENV.fetch('DEEPSEEK_API_KEY', nil)
   config.gemini_api_key = ENV.fetch('GEMINI_API_KEY', nil)
+  config.gemini_api_base = ENV.fetch('GEMINI_API_BASE', nil)
   config.gpustack_api_base = ENV.fetch('GPUSTACK_API_BASE', nil)
   config.gpustack_api_key = ENV.fetch('GPUSTACK_API_KEY', nil)
   config.mistral_api_key = ENV.fetch('MISTRAL_API_KEY', nil)
diff --git a/lib/ruby_llm/configuration.rb b/lib/ruby_llm/configuration.rb
index eda2c3354..2593c3fdc 100644
--- a/lib/ruby_llm/configuration.rb
+++ b/lib/ruby_llm/configuration.rb
@@ -10,6 +10,7 @@ class Configuration
                   :openai_use_system_role,
                   :anthropic_api_key,
                   :gemini_api_key,
+                  :gemini_api_base,
                   :vertexai_project_id,
                   :vertexai_location,
                   :deepseek_api_key,
diff --git a/lib/ruby_llm/providers/gemini.rb b/lib/ruby_llm/providers/gemini.rb
index 30e90b449..c80609da4 100644
--- a/lib/ruby_llm/providers/gemini.rb
+++ b/lib/ruby_llm/providers/gemini.rb
@@ -13,7 +13,7 @@ class Gemini < Provider
       include Gemini::Media
 
       def api_base
-        'https://generativelanguage.googleapis.com/v1beta'
+        @config.gemini_api_base || 'https://generativelanguage.googleapis.com/v1beta'
       end
 
       def headers