fix: typos in model picker (#6859)

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codex-rs/core/src/config/edit.rs

@@ -845,6 +845,36 @@ hide_gpt5_1_migration_prompt = true
         assert_eq!(contents, expected);
     }
 
+    #[test]
+    fn blocking_set_hide_arcticfox_migration_prompt_preserves_table() {
+        let tmp = tempdir().expect("tmpdir");
+        let codex_home = tmp.path();
+        std::fs::write(
+            codex_home.join(CONFIG_TOML_FILE),
+            r#"[notice]
+existing = "value"
+"#,
+        )
+        .expect("seed");
+        apply_blocking(
+            codex_home,
+            None,
+            &[ConfigEdit::SetNoticeHideModelMigrationPrompt(
+                "hide_arcticfox_migration_prompt".to_string(),
+                true,
+            )],
+        )
+        .expect("persist");
+
+        let contents =
+            std::fs::read_to_string(codex_home.join(CONFIG_TOML_FILE)).expect("read config");
+        let expected = r#"[notice]
+existing = "value"
+hide_arcticfox_migration_prompt = true
+"#;
+        assert_eq!(contents, expected);
+    }
+
     #[test]
     fn blocking_replace_mcp_servers_round_trips() {
         let tmp = tempdir().expect("tmpdir");

codex-rs/core/src/config/mod.rs

@@ -62,11 +62,11 @@ pub mod profile;
 pub mod types;
 
 #[cfg(target_os = "windows")]
-pub const OPENAI_DEFAULT_MODEL: &str = "gpt-5.1";
+pub const OPENAI_DEFAULT_MODEL: &str = "arcticfox";
 #[cfg(not(target_os = "windows"))]
-pub const OPENAI_DEFAULT_MODEL: &str = "gpt-5.1-codex";
-const OPENAI_DEFAULT_REVIEW_MODEL: &str = "gpt-5.1-codex";
-pub const GPT_5_CODEX_MEDIUM_MODEL: &str = "gpt-5.1-codex";
+pub const OPENAI_DEFAULT_MODEL: &str = "arcticfox";
+const OPENAI_DEFAULT_REVIEW_MODEL: &str = "arcticfox";
+pub const GPT_5_CODEX_MEDIUM_MODEL: &str = "arcticfox";
 
 /// Maximum number of bytes of the documentation that will be embedded. Larger
 /// files are *silently truncated* to this size so we do not take up too much of
@@ -81,7 +81,7 @@ pub struct Config {
     /// Optional override of model selection.
     pub model: String,
 
-    /// Model used specifically for review sessions. Defaults to "gpt-5.1-codex".
+    /// Model used specifically for review sessions. Defaults to "arcticfox".
     pub review_model: String,
 
     pub model_family: ModelFamily,

codex-rs/core/src/config/types.rs

@@ -378,6 +378,8 @@ pub struct Notice {
     pub hide_rate_limit_model_nudge: Option<bool>,
     /// Tracks whether the user has seen the model migration prompt
     pub hide_gpt5_1_migration_prompt: Option<bool>,
+    /// Tracks whether the user has seen the arcticfox migration prompt
+    pub hide_arcticfox_migration_prompt: Option<bool>,
 }
 
 impl Notice {