diff --git a/registry/coder-labs/modules/codex/README.md b/registry/coder-labs/modules/codex/README.md
index b4a895dea..16e6c105b 100644
--- a/registry/coder-labs/modules/codex/README.md
+++ b/registry/coder-labs/modules/codex/README.md
@@ -13,7 +13,7 @@ Run Codex CLI in your workspace to access OpenAI's models through the Codex inte
 ```tf
 module "codex" {
   source         = "registry.coder.com/coder-labs/codex/coder"
-  version        = "4.1.1"
+  version        = "4.1.2"
   agent_id       = coder_agent.example.id
   openai_api_key = var.openai_api_key
   workdir        = "/home/coder/project"
@@ -32,7 +32,7 @@ module "codex" {
 module "codex" {
   count          = data.coder_workspace.me.start_count
   source         = "registry.coder.com/coder-labs/codex/coder"
-  version        = "4.1.1"
+  version        = "4.1.2"
   agent_id       = coder_agent.example.id
   openai_api_key = "..."
   workdir        = "/home/coder/project"
@@ -51,7 +51,7 @@ For tasks integration with AI Bridge, add `enable_aibridge = true` to the [Usage
 ```tf
 module "codex" {
   source          = "registry.coder.com/coder-labs/codex/coder"
-  version         = "4.1.1"
+  version         = "4.1.2"
   agent_id        = coder_agent.example.id
   workdir         = "/home/coder/project"
   enable_aibridge = true
@@ -94,7 +94,7 @@ data "coder_task" "me" {}
 
 module "codex" {
   source         = "registry.coder.com/coder-labs/codex/coder"
-  version        = "4.1.1"
+  version        = "4.1.2"
   agent_id       = coder_agent.example.id
   openai_api_key = "..."
   ai_prompt      = data.coder_task.me.prompt
@@ -112,7 +112,7 @@ This example shows additional configuration options for custom models, MCP serve
 ```tf
 module "codex" {
   source         = "registry.coder.com/coder-labs/codex/coder"
-  version        = "4.1.1"
+  version        = "4.1.2"
   agent_id       = coder_agent.example.id
   openai_api_key = "..."
   workdir        = "/home/coder/project"
diff --git a/registry/coder-labs/modules/codex/main.test.ts b/registry/coder-labs/modules/codex/main.test.ts
index a4edd8185..f8d9f0a59 100644
--- a/registry/coder-labs/modules/codex/main.test.ts
+++ b/registry/coder-labs/modules/codex/main.test.ts
@@ -464,22 +464,13 @@ describe("codex", async () => {
     });
 
     await execModuleScript(id);
-
-    const startLog = await readFileContainer(
-      id,
-      "/home/coder/.codex-module/agentapi-start.log",
-    );
-
     const configToml = await readFileContainer(
       id,
       "/home/coder/.codex/config.toml",
     );
-    expect(startLog).toContain("AI Bridge is enabled, using profile aibridge");
-    expect(startLog).toContain(
-      "Starting Codex with arguments: --profile aibridge",
-    );
     expect(configToml).toContain(
       "[profiles.aibridge]\n" + 'model_provider = "aibridge"',
     );
+    expect(configToml).toContain('profile = "aibridge"');
   });
 });
diff --git a/registry/coder-labs/modules/codex/main.tf b/registry/coder-labs/modules/codex/main.tf
index cc07ce2f9..41bf86ee1 100644
--- a/registry/coder-labs/modules/codex/main.tf
+++ b/registry/coder-labs/modules/codex/main.tf
@@ -136,8 +136,8 @@ variable "agentapi_version" {
 
 variable "codex_model" {
   type        = string
-  description = "The model for Codex to use. Defaults to gpt-5.2-codex."
-  default     = "gpt-5.2-codex"
+  description = "The model for Codex to use. Defaults to gpt-5.3-codex."
+  default     = "gpt-5.3-codex"
 }
 
 variable "pre_install_script" {
@@ -184,12 +184,13 @@ resource "coder_env" "coder_aibridge_session_token" {
 }
 
 locals {
-  workdir         = trimsuffix(var.workdir, "/")
-  app_slug        = "codex"
-  install_script  = file("${path.module}/scripts/install.sh")
-  start_script    = file("${path.module}/scripts/start.sh")
-  module_dir_name = ".codex-module"
-  aibridge_config = <<-EOF
+  workdir            = trimsuffix(var.workdir, "/")
+  app_slug           = "codex"
+  install_script     = file("${path.module}/scripts/install.sh")
+  start_script       = file("${path.module}/scripts/start.sh")
+  module_dir_name    = ".codex-module"
+  latest_codex_model = "gpt-5.3-codex"
+  aibridge_config    = <<-EOF
   [model_providers.aibridge]
   name = "AI Bridge"
   base_url = "${data.coder_workspace.me.access_url}/api/v2/aibridge/openai/v1"
@@ -249,6 +250,8 @@ module "agentapi" {
     chmod +x /tmp/install.sh
     ARG_OPENAI_API_KEY='${var.openai_api_key}' \
     ARG_REPORT_TASKS='${var.report_tasks}' \
+    ARG_CODEX_MODEL='${var.codex_model}' \
+    ARG_LATEST_CODEX_MODEL='${local.latest_codex_model}' \
     ARG_INSTALL='${var.install_codex}' \
     ARG_CODEX_VERSION='${var.codex_version}' \
     ARG_BASE_CONFIG_TOML='${base64encode(var.base_config_toml)}' \
diff --git a/registry/coder-labs/modules/codex/scripts/install.sh b/registry/coder-labs/modules/codex/scripts/install.sh
index 97d539a8c..4742c4137 100644
--- a/registry/coder-labs/modules/codex/scripts/install.sh
+++ b/registry/coder-labs/modules/codex/scripts/install.sh
@@ -20,6 +20,8 @@ echo "=== Codex Module Configuration ==="
 printf "Install Codex: %s\n" "$ARG_INSTALL"
 printf "Codex Version: %s\n" "$ARG_CODEX_VERSION"
 printf "App Slug: %s\n" "$ARG_CODER_MCP_APP_STATUS_SLUG"
+printf "Codex Model: %s\n" "${ARG_CODEX_MODEL:-"Default"}"
+printf "Latest Codex Model: %s\n" "${ARG_LATEST_CODEX_MODEL}"
 printf "Start Directory: %s\n" "$ARG_CODEX_START_DIRECTORY"
 printf "Has Base Config: %s\n" "$([ -n "$ARG_BASE_CONFIG_TOML" ] && echo "Yes" || echo "No")"
 printf "Has Additional MCP: %s\n" "$([ -n "$ARG_ADDITIONAL_MCP_SERVERS" ] && echo "Yes" || echo "No")"
@@ -90,15 +92,25 @@ function install_codex() {
 
 write_minimal_default_config() {
   local config_path="$1"
+
+  ARG_DEFAULT_PROFILE=""
+
+  if [[ "${ARG_ENABLE_AIBRIDGE}" = "true" ]]; then
+    ARG_DEFAULT_PROFILE='profile = "aibridge"'
+  fi
+
   cat << EOF > "$config_path"
 # Minimal Default Codex Configuration
 sandbox_mode = "workspace-write"
 approval_policy = "never"
 preferred_auth_method = "apikey"
+${ARG_DEFAULT_PROFILE}
 
 [sandbox_workspace_write]
 network_access = true
 
+[notice.model_migrations]
+"${ARG_CODEX_MODEL}" = "${ARG_LATEST_CODEX_MODEL}"
 EOF
 }
 
diff --git a/registry/coder-labs/modules/codex/scripts/start.sh b/registry/coder-labs/modules/codex/scripts/start.sh
index 3e55dc70f..e0e7d9725 100644
--- a/registry/coder-labs/modules/codex/scripts/start.sh
+++ b/registry/coder-labs/modules/codex/scripts/start.sh
@@ -155,11 +155,8 @@ setup_workdir() {
 build_codex_args() {
   CODEX_ARGS=()
 
-  if [ "$ARG_ENABLE_AIBRIDGE" = "true" ]; then
-    printf "AI Bridge is enabled, using profile aibridge\n"
-    CODEX_ARGS+=("--profile" "aibridge")
-  elif [ -n "$ARG_CODEX_MODEL" ]; then
-    CODEX_ARGS+=("--model" "$ARG_CODEX_MODEL")
+  if [[ -n "${ARG_CODEX_MODEL}" ]] && [[ "${ARG_ENABLE_AIBRIDGE}" != "true" ]]; then
+    CODEX_ARGS+=("--model" "${ARG_CODEX_MODEL}")
   fi
 
   if [ "$ARG_CONTINUE" = "true" ]; then
@@ -213,7 +210,7 @@ capture_session_id() {
 
 start_codex() {
   printf "Starting Codex with arguments: %s\n" "${CODEX_ARGS[*]}"
-  agentapi server --term-width 67 --term-height 1190 -- codex "${CODEX_ARGS[@]}" &
+  agentapi server --type codex --term-width 67 --term-height 1190 -- codex "${CODEX_ARGS[@]}" &
   capture_session_id
 }