feat: show gpt mini (#6583)

codex-rs/app-server/tests/suite/v2/model_list.rs

@@ -68,6 +68,25 @@ async fn list_models_returns_all_models_with_large_limit() -> Result<()> {
             default_reasoning_effort: ReasoningEffort::Medium,
             is_default: true,
         },
+        Model {
+            id: "gpt-5.1-codex-mini".to_string(),
+            model: "gpt-5.1-codex-mini".to_string(),
+            display_name: "gpt-5.1-codex-mini".to_string(),
+            description: "Optimized for codex. Cheaper, faster, but less capable.".to_string(),
+            supported_reasoning_efforts: vec![
+                ReasoningEffortOption {
+                    reasoning_effort: ReasoningEffort::Medium,
+                    description: "Dynamically adjusts reasoning based on the task".to_string(),
+                },
+                ReasoningEffortOption {
+                    reasoning_effort: ReasoningEffort::High,
+                    description: "Maximizes reasoning depth for complex or ambiguous problems"
+                        .to_string(),
+                },
+            ],
+            default_reasoning_effort: ReasoningEffort::Medium,
+            is_default: false,
+        },
         Model {
             id: "gpt-5.1".to_string(),
             model: "gpt-5.1".to_string(),
@@ -154,8 +173,30 @@ async fn list_models_pagination_works() -> Result<()> {
     } = to_response::<ModelListResponse>(second_response)?;
 
     assert_eq!(second_items.len(), 1);
-    assert_eq!(second_items[0].id, "gpt-5.1");
-    assert!(second_cursor.is_none());
+    assert_eq!(second_items[0].id, "gpt-5.1-codex-mini");
+    let third_cursor = second_cursor.ok_or_else(|| anyhow!("cursor for third page"))?;
+
+    let third_request = mcp
+        .send_list_models_request(ModelListParams {
+            limit: Some(1),
+            cursor: Some(third_cursor.clone()),
+        })
+        .await?;
+
+    let third_response: JSONRPCResponse = timeout(
+        DEFAULT_TIMEOUT,
+        mcp.read_stream_until_response_message(RequestId::Integer(third_request)),
+    )
+    .await??;
+
+    let ModelListResponse {
+        data: third_items,
+        next_cursor: third_cursor,
+    } = to_response::<ModelListResponse>(third_response)?;
+
+    assert_eq!(third_items.len(), 1);
+    assert_eq!(third_items[0].id, "gpt-5.1");
+    assert!(third_cursor.is_none());
     Ok(())
 }
 

codex-rs/common/src/model_presets.rs

@@ -173,14 +173,11 @@ const PRESETS: &[ModelPreset] = &[
     },
 ];
 
-pub fn builtin_model_presets(auth_mode: Option<AuthMode>) -> Vec<ModelPreset> {
-    let allow_codex_mini = matches!(auth_mode, Some(AuthMode::ChatGPT));
+pub fn builtin_model_presets(_auth_mode: Option<AuthMode>) -> Vec<ModelPreset> {
+    // leave auth mode for later use
     PRESETS
         .iter()
-        .filter(|preset| {
-            (allow_codex_mini || preset.id != "gpt-5.1-codex-mini")
-                && preset.recommended_upgrade_model.is_none()
-        })
+        .filter(|preset| preset.recommended_upgrade_model.is_none())
         .copied()
         .collect()
 }

codex-rs/tui/src/chatwidget/snapshots/codex_tui__chatwidget__tests__model_selection_popup.snap

@@ -5,7 +5,9 @@ expression: popup
   Select Model and Effort
   Access legacy models by running codex -m <model_name> or in your config
 
-› 1. gpt-5.1-codex  Optimized for codex.
-  2. gpt-5.1        Broad world knowledge with strong general reasoning.
+› 1. gpt-5.1-codex       Optimized for codex.
+  2. gpt-5.1-codex-mini  Optimized for codex. Cheaper, faster, but less
+                         capable.
+  3. gpt-5.1             Broad world knowledge with strong general reasoning.
 
   Press enter to select reasoning effort, or esc to dismiss.