diff --git a/tools/op.sh b/tools/op.sh
index 62d390c9b5..f01863e1b1 100755
--- a/tools/op.sh
+++ b/tools/op.sh
@@ -94,7 +94,7 @@ function op_check_git() {
   fi
 
   echo "Checking for git lfs files..."
-  if [[ $(file -b $OPENPILOT_ROOT/selfdrive/modeld/models/supercombo.onnx) == "data" ]]; then
+  if [[ $(file -b $OPENPILOT_ROOT/selfdrive/modeld/models/dmonitoring_model.onnx) == "data" ]]; then
     echo -e " ↳ [${GREEN}✔${NC}] git lfs files found."
   else
     echo -e " ↳ [${RED}✗${NC}] git lfs files not found! Run 'git lfs pull'"
@@ -312,6 +312,30 @@ function op_sim() {
   op_run_command exec tools/sim/launch_openpilot.sh
 }
 
+function op_switch() {
+  op_before_cmd
+
+  REMOTE="origin"
+  if [ "$#" -gt 1 ]; then
+    REMOTE="$1"
+    shift
+  fi
+
+  if [ -z "$1" ]; then
+    echo -e "${BOLD}${UNDERLINE}Usage:${NC} op switch [REMOTE] <BRANCH>"
+    return 1
+  fi
+  BRANCH="$1"
+
+  git fetch "$REMOTE" "$BRANCH":"$BRANCH"
+  git checkout -f --recurse-submodules "$BRANCH"
+  git reset --hard "$BRANCH"
+  git clean -df
+  git submodule update --init --recursive
+  git submodule foreach git reset --hard
+  git submodule foreach git clean -df
+}
+
 function op_default() {
   echo "An openpilot helper"
   echo ""
@@ -333,6 +357,7 @@ function op_default() {
   echo -e "  ${BOLD}setup${NC}        Install openpilot dependencies"
   echo -e "  ${BOLD}build${NC}        Run the openpilot build system in the current working directory"
   echo -e "  ${BOLD}install${NC}      Install the 'op' tool system wide"
+  echo -e "  ${BOLD}switch${NC}       Switch to a different git branch with a clean slate (nukes any changes)"
   echo ""
   echo -e "${BOLD}${UNDERLINE}Commands [Tooling]:${NC}"
   echo -e "  ${BOLD}juggle${NC}       Run PlotJuggler"
@@ -388,6 +413,7 @@ function _op() {
     replay )        shift 1; op_replay "$@" ;;
     sim )           shift 1; op_sim "$@" ;;
     install )       shift 1; op_install "$@" ;;
+    switch )        shift 1; op_switch "$@" ;;
     post-commit )   shift 1; op_install_post_commit "$@" ;;
     * ) op_default "$@" ;;
   esac