diff --git a/lite/src/mge/network_impl.cpp b/lite/src/mge/network_impl.cpp
index 10480c44c651b83e24aeefe543e356d0568d2ecd..a7719520679ca92c412c3af53aefc29fcf307bcc 100644
--- a/lite/src/mge/network_impl.cpp
+++ b/lite/src/mge/network_impl.cpp
@@ -79,11 +79,6 @@ void NetworkImplDft::application_config() {
             force_output_use_user_specified_memory,
             force_output_use_user_specified_memory);
     ConfigOption(no_profiling_on_shape_change, no_profiling_on_shape_change);
-    LITE_ASSERT(
-            m_user_config->options.jit_level == 0 ||
-                    (m_user_config->options.jit_level > 0 &&
-                     device_type == LiteDeviceType::LITE_CUDA),
-            "jit only support in cuda device.");
     ConfigOption(graph_opt.jit, jit_level);
     ConfigOption(comp_node_seq_record_level, comp_node_seq_record_level);
     ConfigOption(graph_opt_level, graph_opt_level);
diff --git a/src/core/include/megbrain/graph/cg.h b/src/core/include/megbrain/graph/cg.h
index 2d545bcb9361a3265433a2823b9fa2dd05b9b3e2..0ae7a2365bd286ff328984f268042c25824782e5 100644
--- a/src/core/include/megbrain/graph/cg.h
+++ b/src/core/include/megbrain/graph/cg.h
@@ -366,7 +366,6 @@ public:
          *    construction
          * 2: level-2: level-1, plus global optimization before graph
          *    compiling
-         * 3: also enable JIT
          * <0: corresponding level, with result check for debug
          */
         int16_t graph_opt_level = 2;