diff --git a/tests/integration/test_lists/waives.txt b/tests/integration/test_lists/waives.txt
index 871ce8effa6f..503924b37166 100644
--- a/tests/integration/test_lists/waives.txt
+++ b/tests/integration/test_lists/waives.txt
@@ -438,7 +438,9 @@ test_e2e.py::test_multi_nodes_eval[MiniMax-M2-tp16-mmlu] SKIP (https://nvbugs/63
 test_e2e.py::test_multi_nodes_eval[MiniMax-M3-tp16-mmlu] SKIP (https://nvbugs/6373561)
 test_e2e.py::test_ptp_quickstart_advanced_deepseek_r1_w4afp8_8gpus[DeepSeek-R1-W4AFP8-DeepSeek-R1/DeepSeek-R1-W4AFP8] SKIP (https://nvbugs/5836830)
 unittest/_torch/misc/test_share_tensor.py::TestShareTensor::test_share_tensor_different_dtypes SKIP (https://nvbugs/6418021)
+unittest/_torch/modeling -k "modeling_out_of_tree" SKIP (https://nvbugs/6426847)
 unittest/_torch/modeling -k "modeling_qwen" SKIP (https://nvbugs/6433376)
+unittest/_torch/modeling/test_modeling_out_of_tree.py::TestOutOfTree::test_llm_api[True] SKIP (https://nvbugs/6426847)
 unittest/_torch/modeling/test_modeling_qwen3_5_vl.py::test_qwen35_dense_vl_resolves_mamba_ssm_cache_dtype SKIP (https://nvbugs/6433376)
 unittest/_torch/modules/moe/test_moe_backend.py::test_moe_backend[act=Relu2-e60_k4_h2048_i1408-seq=8-dtype=torch.bfloat16-backend=TRTLLM-quant=NVFP4-routing=Renormalize] SKIP (https://nvbugs/5989912)
 unittest/_torch/modules/tests_lora_modules/test_nemotron_h_lora_sanity.py::TestNemotronHLoRA::test_lora_pp2_sanity SKIP (https://nvbugs/6428124)