openai-compatible: add usage example

Author: kasimeka

examples/openai_compatible_example.exs

@@ -0,0 +1,34 @@
+# Sample script demonstrating AI.generate_text usage with an openai-compatible api
+# Run from the elixir-ai-sdk root directory with: 
+# mix run examples/openai_compatible_example.exs
+
+# Make sure you've set the GOOGLE_API_KEY environment variable
+
+defmodule OpenAICompatibleExample do
+  def run do
+    IO.puts("Starting generate_text example...\n")
+
+    api_key = System.get_env("GOOGLE_API_KEY")
+
+    if is_nil(api_key) do
+      IO.puts("Error: GOOGLE_API_KEY environment variable not set")
+      System.halt(1)
+    end
+
+    {:ok, result} =
+      AI.generate_text(%{
+        prompt: "is elixir a statically typed programming language?",
+        model:
+          AI.openai_compatible(
+            "gemini-2.5-flash",
+            base_url: "https://generativelanguage.googleapis.com/v1beta/openai",
+            api_key: api_key
+          )
+      })
+
+    IO.puts(result.text)
+  end
+end
+
+# Run the example
+OpenAICompatibleExample.run()