diff --git a/src/local_transcriber/cli.py b/src/local_transcriber/cli.py
index 3b76bdb..eb48942 100644
--- a/src/local_transcriber/cli.py
+++ b/src/local_transcriber/cli.py
@@ -55,7 +55,7 @@ def main(
     ),
     compute_type: str | None = typer.Option(
         None, "--compute-type", show_default=False,
-        help="Тип вычислений [по умолч.: float16 (GPU) / float32 (CPU)]"
+        help="Тип вычислений [по умолч.: float16 (CUDA) / int8 (OpenVINO) / float32 (CPU)]"
     ),
     verbose: bool = typer.Option(False, "--verbose", "-v", help="Подробный вывод"),
     force: bool = typer.Option(False, "--force", "-f", help="Перезаписать существующие транскрипты"),
@@ -72,7 +72,7 @@ def main(
         resolved_device = detect_device(defaults["device"])
         defaults = apply_device_defaults(defaults, resolved_device, cli_values, config)
 
-        ct_explicit = compute_type is not None
+        ct_explicit = compute_type is not None or "compute_type" in config
 
         expanded = expand_globs(files)
         if not expanded:
diff --git a/src/local_transcriber/transcriber.py b/src/local_transcriber/transcriber.py
index 1561707..6bf5871 100644
--- a/src/local_transcriber/transcriber.py
+++ b/src/local_transcriber/transcriber.py
@@ -118,6 +118,7 @@ def transcribe(
     """High-level API: загрузка модели + транскрипция за один вызов."""
     model, actual_device, backend, model_path = load_model(
         model_name, device, compute_type, on_status, strict_device,
+        compute_type_explicit=True,  # Python API — caller explicitly chose compute_type
     )
     tfr = _transcribe_file(
         model, actual_device, backend, model_path,
@@ -130,11 +131,19 @@ def transcribe(
 def ensure_model_available(
     model_name: str,
     device: str = "cpu",
-    compute_type: str = "float32",
+    compute_type: str | None = None,
     on_status: Callable[[str], None] | None = None,
 ) -> str:
     """Публичный helper: гарантирует наличие модели для указанного бэкенда."""
-    backend = get_backend(device)
+    from local_transcriber.config import DEVICE_DEFAULTS, HARDCODED_DEFAULTS
+
+    if compute_type is None:
+        device_defs = DEVICE_DEFAULTS.get(device, {})
+        compute_type = device_defs.get("compute_type", HARDCODED_DEFAULTS["compute_type"])
+        explicit = False
+    else:
+        explicit = True
+    backend = get_backend(device, compute_type_explicit=explicit)
     return backend.ensure_model_available(model_name, compute_type, on_status)
 
 
@@ -154,9 +163,14 @@ def _is_backend_error(exc: BaseException, device: str) -> bool:
 
 
 def _is_openvino_error(exc: BaseException) -> bool:
-    """Проверка ошибок OpenVINO runtime."""
-    msg = str(exc).lower()
-    return any(k in msg for k in ("openvino", "ov_", "inference_engine"))
+    """Проверка ошибок OpenVINO runtime.
+
+    OpenVINO runtime кидает RuntimeError с разнообразными сообщениями
+    (openvino, ov_, inference, plugins, src/...). Пользовательские ошибки
+    (файл не найден, неверный формат) приходят как FileNotFoundError/ValueError
+    и не попадают сюда. Поэтому для RuntimeError считаем это backend failure.
+    """
+    return isinstance(exc, RuntimeError)
 
 
 def _notify_status(on_status: Callable[[str], None] | None, message: str) -> None:
diff --git a/tests/test_transcriber.py b/tests/test_transcriber.py
index ecfb96d..19d2713 100644
--- a/tests/test_transcriber.py
+++ b/tests/test_transcriber.py
@@ -512,3 +512,32 @@ def test_openvino_strict_device_no_fallback(mock_get_backend):
 
     with pytest.raises(RuntimeError, match="OpenVINO"):
         load_model("medium", "openvino", "int8", strict_device=True)
+
+
+@patch("local_transcriber.transcriber.get_backend")
+def test_openvino_runtime_error_triggers_fallback(mock_get_backend):
+    """Любой RuntimeError от OpenVINO бэкенда → fallback."""
+    ov_backend = _make_backend(
+        create_model_error=RuntimeError("Exception from src/inference/..."),
+    )
+    cpu_backend = _make_backend(model_path="/mock/cpu/model")
+
+    def backend_for_device(device, **kwargs):
+        return ov_backend if device == "openvino" else cpu_backend
+
+    mock_get_backend.side_effect = backend_for_device
+
+    with pytest.warns(UserWarning, match="Переключение на CPU"):
+        _, actual_device, _, _ = load_model("medium", "openvino", "int8")
+
+    assert actual_device == "cpu"
+
+
+def test_ensure_model_available_openvino_default_compute_type():
+    """ensure_model_available(device='openvino') без compute_type не падает."""
+    from local_transcriber.backends.openvino import OpenVINOBackend
+
+    backend = OpenVINOBackend(compute_type_explicit=True)
+    # Проверяем что _resolve_repo работает с дефолтным compute_type для openvino (int8)
+    repo = backend._resolve_repo("medium", "int8")
+    assert repo == "OpenVINO/whisper-medium-int8-ov"