diff --git a/custom_components/configurable_llm/const.py b/custom_components/configurable_llm/const.py
index 99ec8cc..10207c6 100644
--- a/custom_components/configurable_llm/const.py
+++ b/custom_components/configurable_llm/const.py
@@ -26,7 +26,7 @@
 
 # `reasoning_effort` choices offered for OpenAI-compatible providers. Servers and
 # models vary in what they accept; "none" means "do not send the parameter".
-REASONING_EFFORT_OPTIONS = ["none", "low", "medium", "high"]
+REASONING_EFFORT_OPTIONS = ["none", "minimal", "low", "medium", "high"]
 
 CONF_WEB_FETCH_MAX_USES = "web_fetch_max_uses"
 CONF_WEB_SEARCH = "web_search"
diff --git a/custom_components/configurable_llm/strings.json b/custom_components/configurable_llm/strings.json
index 7bf7453..3727e94 100644
--- a/custom_components/configurable_llm/strings.json
+++ b/custom_components/configurable_llm/strings.json
@@ -245,6 +245,7 @@
     "reasoning_effort": {
       "options": {
         "none": "Default (none)",
+        "minimal": "Minimal",
         "low": "Low",
         "medium": "Medium",
         "high": "High"
diff --git a/custom_components/configurable_llm/translations/en.json b/custom_components/configurable_llm/translations/en.json
index 7bf7453..3727e94 100644
--- a/custom_components/configurable_llm/translations/en.json
+++ b/custom_components/configurable_llm/translations/en.json
@@ -245,6 +245,7 @@
     "reasoning_effort": {
       "options": {
         "none": "Default (none)",
+        "minimal": "Minimal",
         "low": "Low",
         "medium": "Medium",
         "high": "High"
diff --git a/tests/providers/test_openai_chat_provider.py b/tests/providers/test_openai_chat_provider.py
index 9a085a1..66eba1b 100644
--- a/tests/providers/test_openai_chat_provider.py
+++ b/tests/providers/test_openai_chat_provider.py
@@ -409,6 +409,14 @@ async def test_build_request_sampling_params(hass: HomeAssistant) -> None:
     assert "reasoning_effort" not in request
 
 
+async def test_build_request_reasoning_effort_minimal(hass: HomeAssistant) -> None:
+    """'minimal' effort is forwarded verbatim, not treated like 'none'."""
+    options = {**DEFAULT_OPENAI, CONF_REASONING_EFFORT: "minimal"}
+    request, _ = await provider.build_request(_ctx(options=options))
+
+    assert request["reasoning_effort"] == "minimal"
+
+
 async def test_build_request_tools(hass: HomeAssistant) -> None:
     """HA tools become Chat Completions function tools."""
     request, _ = await provider.build_request(_ctx(with_tools=True))