diff --git a/README.md b/README.md
index 5de6a32..2b93168 100644
--- a/README.md
+++ b/README.md
@@ -10,6 +10,63 @@ Now you can visit [`localhost:4000`](http://localhost:4000) from your browser.
 
 Ready to run in production? Please [check our deployment guides](https://hexdocs.pm/phoenix/deployment.html).
 
+## AI Provider Configuration
+
+Bodhi supports multiple AI providers that can be switched via configuration.
+
+### Available Providers
+
+#### OpenRouter (Default)
+- **Module:** `Bodhi.OpenRouter`
+- **Default Model:** `deepseek/deepseek-r1-0528:free`
+- **Environment Variable:** `OPENROUTER_API_KEY`
+- **Website:** https://openrouter.ai/
+
+#### Google Gemini
+- **Module:** `Bodhi.Gemini`
+- **Model:** `gemini-2.0-flash`
+- **Environment Variable:** `GEMINI_API_KEY`
+
+### Switching Providers
+
+To switch AI providers, update `config/config.exs`:
+
+```elixir
+# Use OpenRouter (default)
+config :bodhi, :ai_client, Bodhi.OpenRouter
+
+# Use Google Gemini
+config :bodhi, :ai_client, Bodhi.Gemini
+```
+
+### Setting Up API Keys
+
+1. **OpenRouter:**
+   - Get API key from: https://openrouter.ai/keys
+   - Set in `.envrc`: `export OPENROUTER_API_KEY=sk-or-v1-your_api_key_here`
+
+2. **Google Gemini:**
+   - Get API key from: https://aistudio.google.com/app/apikey
+   - Set in `.envrc`: `export GEMINI_API_KEY=your_api_key_here`
+
+3. Reload environment: `direnv allow` (if using direnv)
+
+### Changing OpenRouter Model
+
+Edit `lib/bodhi/open_router.ex` and modify the `@default_model` attribute:
+
+```elixir
+@default_model "deepseek/deepseek-r1-0528:free"  # Current default
+
+# Other popular models:
+# @default_model "anthropic/claude-3.5-sonnet"
+# @default_model "openai/gpt-4-turbo"
+# @default_model "meta-llama/llama-3.1-70b-instruct"
+# @default_model "google/gemini-pro-1.5"
+```
+
+See all available models at: https://openrouter.ai/models
+
 ## Learn more
 
   * Official website: https://www.phoenixframework.org/
diff --git a/config/config.exs b/config/config.exs
index 395b64f..047a4cc 100644
--- a/config/config.exs
+++ b/config/config.exs
@@ -81,6 +81,6 @@ config :posthog,
 
 # Configure behaviour implementations (can be overridden in env-specific configs)
 config :bodhi, :telegram_client, Bodhi.Telegram.TelegexAdapter
-config :bodhi, :ai_client, Bodhi.Gemini
+config :bodhi, :ai_client, Bodhi.OpenRouter
 
 import_config "#{config_env()}.exs"
diff --git a/config/runtime.exs b/config/runtime.exs
index afb6552..de99932 100644
--- a/config/runtime.exs
+++ b/config/runtime.exs
@@ -13,7 +13,8 @@ if System.get_env("PHX_SERVER") && System.get_env("RELEASE_NAME") do
 end
 
 config :bodhi,
-  gemini_token: "#{System.get_env("GEMINI_API_KEY")}"
+  gemini_token: "#{System.get_env("GEMINI_API_KEY")}",
+  openrouter_token: "#{System.get_env("OPENROUTER_API_KEY")}"
 
 config :telegex,
   token: "#{System.get_env("TG_TOKEN")}"
diff --git a/lib/bodhi/ai.ex b/lib/bodhi/ai.ex
index 36567f9..6f40bdb 100644
--- a/lib/bodhi/ai.ex
+++ b/lib/bodhi/ai.ex
@@ -10,8 +10,8 @@ defmodule Bodhi.AI do
   Asks the AI to generate a response based on message history.
   """
   @impl true
-  def ask_gemini(messages) do
-    impl().ask_gemini(messages)
+  def ask_llm(messages) do
+    impl().ask_llm(messages)
   end
 
   defp impl do
diff --git a/lib/bodhi/application.ex b/lib/bodhi/application.ex
index 1b901f7..5373a4d 100644
--- a/lib/bodhi/application.ex
+++ b/lib/bodhi/application.ex
@@ -20,7 +20,7 @@ defmodule Bodhi.Application do
       BodhiWeb.Endpoint,
       Bodhi.TgWebhookHandler,
       {Finch,
-       name: Gemini,
+       name: LLM,
        pools: %{
          :default => [size: 10]
        }},
diff --git a/lib/bodhi/behaviours/ai_client.ex b/lib/bodhi/behaviours/ai_client.ex
index 38e958c..0cf6857 100644
--- a/lib/bodhi/behaviours/ai_client.ex
+++ b/lib/bodhi/behaviours/ai_client.ex
@@ -8,5 +8,5 @@ defmodule Bodhi.Behaviours.AIClient do
   @doc """
   Asks the AI to generate a response based on message history.
   """
-  @callback ask_gemini([Message.t()]) :: {:ok, String.t()} | {:error, String.t()}
+  @callback ask_llm([Message.t()]) :: {:ok, String.t()} | {:error, String.t()}
 end
diff --git a/lib/bodhi/gemini.ex b/lib/bodhi/gemini.ex
index 8625bf6..c5660d4 100644
--- a/lib/bodhi/gemini.ex
+++ b/lib/bodhi/gemini.ex
@@ -16,8 +16,8 @@ defmodule Bodhi.Gemini do
   Request Gemini for bot's response in dialogue.
   """
   @impl true
-  @spec ask_gemini([Message.t()]) :: {:ok, String.t()} | {:error, String.t()}
-  def ask_gemini(messages) do
+  @spec ask_llm([Message.t()]) :: {:ok, String.t()} | {:error, String.t()}
+  def ask_llm(messages) do
     %Prompt{text: prompt} = Prompts.get_latest_prompt!()
 
     messages
@@ -43,7 +43,7 @@ defmodule Bodhi.Gemini do
       [{"x-goog-api-key", Application.get_env(:bodhi, :gemini_token)}],
       body
     )
-    |> Finch.request!(Gemini)
+    |> Finch.request!(LLM)
     |> handle_finch_response()
     |> Jason.decode!()
   end
diff --git a/lib/bodhi/open_router.ex b/lib/bodhi/open_router.ex
new file mode 100644
index 0000000..ba81fd0
--- /dev/null
+++ b/lib/bodhi/open_router.ex
@@ -0,0 +1,88 @@
+defmodule Bodhi.OpenRouter do
+  @moduledoc """
+  OpenRouter API wrapper
+  OpenRouter provides unified access to multiple AI models through OpenAI-compatible API.
+  """
+  @behaviour Bodhi.Behaviours.AIClient
+
+  @openrouter_url "https://openrouter.ai/api/v1/chat/completions"
+  @default_model "deepseek/deepseek-r1-0528:free"
+
+  alias Bodhi.Chats.Message
+  alias Bodhi.Prompts
+  alias Bodhi.Prompts.Prompt
+
+  require Logger
+
+  @doc """
+  Request OpenRouter for bot's response in dialogue.
+  """
+  @impl true
+  @spec ask_llm([Message.t()]) :: {:ok, String.t()} | {:error, String.t()}
+  def ask_llm(messages) do
+    %Prompt{text: prompt} = Prompts.get_latest_prompt!()
+
+    messages
+    |> prepare_messages()
+    |> request_openrouter(prompt)
+    |> parse_response()
+  end
+
+  defp prepare_messages(messages), do: Enum.map(messages, &build_message/1)
+
+  defp build_message(%Message{text: text, chat_id: user_id, user_id: user_id}),
+    do: %{role: "user", content: text}
+
+  defp build_message(%Message{text: text}), do: %{role: "assistant", content: text}
+
+  defp request_openrouter(messages, prompt) do
+    body = build_body(messages, prompt)
+
+    :post
+    |> Finch.build(
+      @openrouter_url,
+      [
+        {"Authorization", "Bearer #{Application.get_env(:bodhi, :openrouter_token)}"},
+        {"Content-Type", "application/json"},
+        {"HTTP-Referer", "https://lamabot.io"},
+        {"X-Title", "Lama Bot"}
+      ],
+      body
+    )
+    |> Finch.request!(LLM)
+    |> handle_finch_response()
+    |> Jason.decode!()
+  end
+
+  defp build_body(messages, prompt) do
+    %{
+      model: @default_model,
+      messages: [
+        %{role: "system", content: prompt}
+        | messages
+      ]
+    }
+    |> Jason.encode!()
+  end
+
+  defp handle_finch_response(%Finch.Response{status: 200, body: body}), do: body
+
+  defp handle_finch_response(%Finch.Response{status: code, body: body}) do
+    Logger.warning("OpenRouter request error code: #{code}, body: '#{body}'")
+    body
+  end
+
+  defp parse_response(%{"choices" => [%{"message" => %{"content" => content}} | _]}) do
+    {:ok, content}
+  end
+
+  defp parse_response(%{"error" => error}) do
+    Logger.error("OpenRouter API error: #{inspect(error)}")
+    {:error, "OpenRouter API error: #{inspect(error)}"}
+  end
+
+  defp parse_response(response) do
+    Logger.error("Unexpected OpenRouter response format: #{inspect(response)}")
+    {:error, "Unexpected response format"}
+  end
+end
diff --git a/lib/bodhi/tg_webhook_handler.ex b/lib/bodhi/tg_webhook_handler.ex
index 6984b3e..ba2294f 100644
--- a/lib/bodhi/tg_webhook_handler.ex
+++ b/lib/bodhi/tg_webhook_handler.ex
@@ -128,7 +128,7 @@ defmodule Bodhi.TgWebhookHandler do
 
   defp get_answer(%_{chat_id: chat_id}, _) do
     messages = Bodhi.Chats.get_chat_messages(chat_id)
-    {:ok, _answer} = Bodhi.AI.ask_gemini(messages)
+    {:ok, _answer} = Bodhi.AI.ask_llm(messages)
   end
 
   defp get_start_message(lang) do
diff --git a/test/bodhi/tg_webhook_handler_test.exs b/test/bodhi/tg_webhook_handler_test.exs
index bd9eb71..4d92fc7 100644
--- a/test/bodhi/tg_webhook_handler_test.exs
+++ b/test/bodhi/tg_webhook_handler_test.exs
@@ -135,7 +135,7 @@ defmodule Bodhi.TgWebhookHandlerTest do
 
     # Set up expectations based on test parameters
     if gemini? do
-      expect(Bodhi.GeminiMock, :ask_gemini, fn _messages ->
+      expect(Bodhi.GeminiMock, :ask_llm, fn _messages ->
         {:ok, Faker.Lorem.paragraph()}
       end)
     end
diff --git a/test/support/conn_case.ex b/test/support/conn_case.ex
index deb12e8..5478408 100644
--- a/test/support/conn_case.ex
+++ b/test/support/conn_case.ex
@@ -88,7 +88,7 @@ defmodule BodhiWeb.ConnCase do
 
     # Set up default stub for Gemini mock
     Bodhi.GeminiMock
-    |> stub(:ask_gemini, fn _ ->
+    |> stub(:ask_llm, fn _ ->
       {:ok, Faker.Lorem.paragraph()}
     end)
 
diff --git a/test/support/oban_case.ex b/test/support/oban_case.ex
index 0c94f96..57b209f 100644
--- a/test/support/oban_case.ex
+++ b/test/support/oban_case.ex
@@ -87,7 +87,7 @@ defmodule Bodhi.ObanCase do
 
     # Set up default stub for Gemini mock
     Bodhi.GeminiMock
-    |> stub(:ask_gemini, fn _ ->
+    |> stub(:ask_llm, fn _ ->
       {:ok, Faker.Lorem.paragraph()}
     end)
 
diff --git a/test/test_helper.exs b/test/test_helper.exs
index 61767b4..a52788a 100644
--- a/test/test_helper.exs
+++ b/test/test_helper.exs
@@ -3,6 +3,7 @@
 # Define Mox mocks
 Mox.defmock(Bodhi.TelegramMock, for: Bodhi.Behaviours.TelegramClient)
 Mox.defmock(Bodhi.GeminiMock, for: Bodhi.Behaviours.AIClient)
+Mox.defmock(Bodhi.OpenRouterMock, for: Bodhi.Behaviours.AIClient)
 
 Ecto.Adapters.SQL.Sandbox.mode(Bodhi.Repo, :manual)
 ExUnit.start()