diff --git a/pyproject.toml b/pyproject.toml
index 977476932..9702d80cd 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "truss"
-version = "0.9.63"
+version = "0.9.64rc001"
 description = "A seamless bridge from model development to model delivery"
 license = "MIT"
 readme = "README.md"
@@ -189,7 +189,7 @@ markers = [
 addopts = "--ignore=smoketests"
 
 [tool.ruff]
-src = ["truss", "truss-chains"]
+src = ["truss", "truss-chains", "truss-utils"]
 target-version = "py38"
 line-length = 88
 lint.extend-select = [
diff --git a/truss/base/trt_llm_config.py b/truss/base/trt_llm_config.py
index 9b0ed384c..03537c851 100644
--- a/truss/base/trt_llm_config.py
+++ b/truss/base/trt_llm_config.py
@@ -21,13 +21,16 @@
 
 
 class TrussTRTLLMModel(str, Enum):
+    ENCODER = "encoder"
+    DECODER = "decoder"
+    # auto migrated settings
+    PALMYRA = "palmyra"
+    QWEN = "qwen"
     LLAMA = "llama"
     MISTRAL = "mistral"
     DEEPSEEK = "deepseek"
+    # deprecated workflow
     WHISPER = "whisper"
-    QWEN = "qwen"
-    ENCODER = "encoder"
-    PALMYRA = "palmyra"
 
 
 class TrussTRTLLMQuantizationType(str, Enum):
@@ -43,11 +46,38 @@ class TrussTRTLLMQuantizationType(str, Enum):
 
 class TrussTRTLLMPluginConfiguration(BaseModel):
     paged_kv_cache: bool = True
-    gemm_plugin: str = "auto"
     use_paged_context_fmha: bool = True
     use_fp8_context_fmha: bool = False
 
 
+class TrussTRTQuantizationConfiguration(BaseModel):
+    """Configuration for quantization of TRT models
+
+    Args:
+        calib_size (int, optional): Size of calibration dataset. Defaults to 1024.
+            recommended to increase for production runs (e.g. 1536), or decrease e.g. to 256 for quick testing.
+        calib_dataset (str, optional): Hugginface dataset to use for calibration. Defaults to 'cnn_dailymail'.
+            uses split='train' and  quantized based on 'text' column.
+        calib_max_seq_length (int, optional): Maximum sequence length for calibration. Defaults to 2048.
+    """
+
+    calib_size: int = 1024
+    calib_dataset: str = "cnn_dailymail"
+    calib_max_seq_length: int = 2048
+
+    def __init__(self, **data):
+        super().__init__(**data)
+        self.validate_cuda_friendly("calib_size")
+        self.validate_cuda_friendly("calib_max_seq_length")
+
+    def validate_cuda_friendly(self, key):
+        value = getattr(self, key)
+        if value < 64 or value > 16384:
+            raise ValueError(f"{key} must be between 64 and 16384, but got {value}")
+        elif value % 64 != 0:
+            raise ValueError(f"{key} must be a multiple of 64, but got {value}")
+
+
 class CheckpointSource(str, Enum):
     HF = "HF"
     GCS = "GCS"
@@ -97,7 +127,7 @@ class TrussTRTLLMRuntimeConfiguration(BaseModel):
 
 
 class TrussTRTLLMBuildConfiguration(BaseModel):
-    base_model: TrussTRTLLMModel
+    base_model: TrussTRTLLMModel = TrussTRTLLMModel.DECODER
     max_seq_len: int
     max_batch_size: int = 256
     max_num_tokens: int = 8192
@@ -109,6 +139,9 @@ class TrussTRTLLMBuildConfiguration(BaseModel):
     quantization_type: TrussTRTLLMQuantizationType = (
         TrussTRTLLMQuantizationType.NO_QUANT
     )
+    quantization_config: TrussTRTQuantizationConfiguration = (
+        TrussTRTQuantizationConfiguration()
+    )
     tensor_parallel_count: int = 1
     pipeline_parallel_count: int = 1
     plugin_configuration: TrussTRTLLMPluginConfiguration = (
diff --git a/truss/tests/conftest.py b/truss/tests/conftest.py
index a4011c2ca..d86e5932c 100644
--- a/truss/tests/conftest.py
+++ b/truss/tests/conftest.py
@@ -825,7 +825,6 @@ def trtllm_spec_dec_config_full(trtllm_config) -> Dict[str, Any]:
             "checkpoint_repository": {"source": "HF", "repo": "meta/llama4-500B"},
             "plugin_configuration": {
                 "paged_kv_cache": True,
-                "gemm_plugin": "auto",
                 "use_paged_context_fmha": True,
             },
             "speculator": {
@@ -857,7 +856,6 @@ def trtllm_spec_dec_config(trtllm_config) -> Dict[str, Any]:
             "checkpoint_repository": {"source": "HF", "repo": "meta/llama4-500B"},
             "plugin_configuration": {
                 "paged_kv_cache": True,
-                "gemm_plugin": "auto",
                 "use_paged_context_fmha": True,
             },
             "speculator": {