[CI/Build][Bugfix] Ensure compatibility with transformers 4.52

requirements/test.in

@@ -34,7 +34,7 @@ opencv-python-headless >= 4.11.0 # required for video test
 datamodel_code_generator # required for minicpm3 test
 lm-eval[api]==0.4.8 # required for model evaluation test
 mteb>=1.38.11, <2 # required for mteb test
-transformers==4.51.3
+transformers==4.52.4
 tokenizers==0.21.1
 huggingface-hub[hf_xet]>=0.30.0  # Required for Xet downloads.
 schemathesis>=3.39.15 # Required for openai schema test.

requirements/test.txt

@@ -794,7 +794,7 @@ tqdm==4.66.6
     #   transformers
 tqdm-multiprocess==0.0.11
     # via lm-eval
-transformers==4.51.3
+transformers==4.52.4
     # via
     #   -r requirements/test.in
     #   genai-perf

tests/models/multimodal/generation/test_common.py

@@ -226,6 +226,8 @@
         img_idx_to_prompt=lambda idx: "",
         auto_cls=AutoModelForImageTextToText,
         vllm_output_post_proc=model_utils.blip2_vllm_to_hf_output,
+        # FIXME: https://github.com/huggingface/transformers/pull/38510
+        marks=[pytest.mark.skip("Model is broken")],
     ),
     "chameleon": VLMTestInfo(
         models=["facebook/chameleon-7b"],
@@ -281,10 +283,10 @@
         multi_image_prompt="<start_of_image><start_of_image>Describe the two images in detail.",  # noqa: E501
         max_model_len=4096,
         max_num_seqs=2,
-        dtype="bfloat16",
         auto_cls=AutoModelForImageTextToText,
         vllm_runner_kwargs={"mm_processor_kwargs": {"do_pan_and_scan": True}},
         patch_hf_runner=model_utils.gemma3_patch_hf_runner,
+        num_logprobs=10,
     ),
     "glm4v": VLMTestInfo(
         models=["THUDM/glm-4v-9b"],
@@ -337,7 +339,8 @@
         models=[
             "OpenGVLab/InternVL2-1B",
             "OpenGVLab/InternVL2-2B",
-            "OpenGVLab/Mono-InternVL-2B",
+            # FIXME: Config cannot be loaded in transformers 4.52
+            # "OpenGVLab/Mono-InternVL-2B",
         ],
         test_type=(VLMTestType.IMAGE, VLMTestType.MULTI_IMAGE),
         prompt_formatter=lambda img_prompt: f"<|im_start|>User\n{img_prompt}<|im_end|>\n<|im_start|>Assistant\n", # noqa: E501
@@ -568,6 +571,8 @@
         max_num_seqs=2,
         vllm_output_post_proc=model_utils.qwen_vllm_to_hf_output,
         prompt_path_encoder=model_utils.qwen_prompt_path_encoder,
+        # FIXME: https://github.com/huggingface/transformers/issues/38358
+        marks=[pytest.mark.skip("Model initialization fails")],
     ),
     "qwen2_vl": VLMTestInfo(
         models=["Qwen/Qwen2-VL-2B-Instruct"],

tests/models/multimodal/generation/test_florence2.py

@@ -100,6 +100,8 @@ def run_test(
         )
 
 
+# FIXME: https://github.com/huggingface/transformers/issues/38358
+@pytest.mark.skip("Model initialization fails")
 @pytest.mark.core_model
 @pytest.mark.parametrize("model", MODELS)
 @pytest.mark.parametrize(

tests/models/multimodal/generation/test_granite_speech.py

@@ -29,7 +29,7 @@ def vllm_to_hf_output(
     return output_ids, hf_output_str, out_logprobs
 
 
-MODEL_NAME = "ibm-granite/granite-speech-3.3-8b"
+MODEL_NAME = "ibm-granite/granite-speech-3.3-2b"
 # Audio lora co-exists directly in the model directory, but
 # currently still needs to be passed directly to vLLM.
 audio_lora_path = MODEL_NAME

tests/models/multimodal/generation/test_phi4mm.py

@@ -122,6 +122,10 @@ def run_test(
             for prompts, images, audios in inputs
         ]
 
+    # This error occurs inside `get_peft_model`
+    # FIXME: https://huggingface.co/microsoft/Phi-4-multimodal-instruct/discussions/75
+    pytest.skip("HF impl is not compatible with current transformers")
+
     hf_model_kwargs = {"_attn_implementation": "sdpa"}
     with hf_runner(model, dtype=dtype,
                    model_kwargs=hf_model_kwargs) as hf_model:

tests/models/multimodal/generation/vlm_utils/model_utils.py

@@ -10,11 +10,12 @@
 
 import numpy as np
 import numpy.typing as npt
+import pytest
 import regex as re
 import torch
 from PIL.Image import Image
 from transformers import (AutoConfig, AutoTokenizer, BatchFeature,
-                          GenerationConfig)
+                          GenerationConfig, GenerationMixin)
 
 from vllm.sequence import SampleLogprobs
 from vllm.transformers_utils.tokenizer import patch_padding_side
@@ -324,6 +325,16 @@ def processor(*args, **kwargs):
 
     hf_model.processor = processor
 
+    orig_generate = hf_model.model.generate
+
+    def _generate(self, *args, **kwargs):
+        # FIXME: https://github.com/huggingface/transformers/issues/38333
+        kwargs["disable_compile"] = True
+
+        return orig_generate(*args, **kwargs)
+
+    hf_model.model.generate = types.MethodType(_generate, hf_model.model)
+
     return hf_model
 
 
@@ -610,6 +621,11 @@ def _internvl_generate(
     if getattr(self, "use_visual_token_mask", False):
         visual_token_mask = selected.reshape(B, N, 1).to(input_embeds.dtype)
         forward_kwargs["visual_token_mask"] = visual_token_mask
+
+    # e.g. InternVL2-2B
+    if not isinstance(self.language_model, GenerationMixin):
+        pytest.skip("HF impl is not compatible with current transformers")
+
     outputs = self.language_model.generate(
         **forward_kwargs,
         **generate_kwargs,

tests/models/multimodal/processing/test_common.py

@@ -245,7 +245,7 @@ def _test_processing_correctness_one(
     "adept/fuyu-8b",
     "google/gemma-3-4b-it",
     "THUDM/glm-4v-9b",
-    "ibm-granite/granite-speech-3.3-8b",
+    "ibm-granite/granite-speech-3.3-2b",
     "h2oai/h2ovl-mississippi-800m",
     "OpenGVLab/InternVL2-1B",
     "OpenGVLab/InternVL3-1B",

tests/models/registry.py

@@ -160,17 +160,12 @@ def check_available_online(
     "Fairseq2LlamaForCausalLM": _HfExamplesInfo("mgleize/fairseq2-dummy-Llama-3.2-1B"),  # noqa: E501
     "FalconForCausalLM": _HfExamplesInfo("tiiuae/falcon-7b"),
     "FalconH1ForCausalLM":_HfExamplesInfo("tiiuae/Falcon-H1-1.5B-Instruct",
-                                          is_available_online=False,
-                                          min_transformers_version="4.52.2"),
+                                          min_transformers_version="4.53"),
     "GemmaForCausalLM": _HfExamplesInfo("google/gemma-1.1-2b-it"),
     "Gemma2ForCausalLM": _HfExamplesInfo("google/gemma-2-9b"),
     "Gemma3ForCausalLM": _HfExamplesInfo("google/gemma-3-1b-it"),
     "GlmForCausalLM": _HfExamplesInfo("THUDM/glm-4-9b-chat-hf"),
-    "Glm4ForCausalLM": _HfExamplesInfo(
-        "THUDM/GLM-4-32B-0414",
-        is_available_online=False,
-        min_transformers_version="4.52.dev0"
-    ),
+    "Glm4ForCausalLM": _HfExamplesInfo("THUDM/GLM-4-9B-0414"),
     "GPT2LMHeadModel": _HfExamplesInfo("openai-community/gpt2",
                                        {"alias": "gpt2"}),
     "GPTBigCodeForCausalLM": _HfExamplesInfo("bigcode/starcoder",
@@ -181,8 +176,7 @@ def check_available_online(
                                           {"1b": "EleutherAI/pythia-1.4b"}),
     "GraniteForCausalLM": _HfExamplesInfo("ibm/PowerLM-3b"),
     "GraniteMoeForCausalLM": _HfExamplesInfo("ibm/PowerMoE-3b"),
-    "GraniteMoeHybridForCausalLM": _HfExamplesInfo("ibm-granite/granite-4.0-tiny-preview",  # noqa: E501
-                                                   min_transformers_version="4.52.0"),  # noqa: E501
+    "GraniteMoeHybridForCausalLM": _HfExamplesInfo("ibm-granite/granite-4.0-tiny-preview"),  # noqa: E501
     "GraniteMoeSharedForCausalLM": _HfExamplesInfo("ibm-research/moe-7b-1b-active-shared-experts"),  # noqa: E501
     "Grok1ModelForCausalLM": _HfExamplesInfo("hpcai-tech/grok-1",
                                              trust_remote_code=True),
@@ -203,8 +197,7 @@ def check_available_online(
     "LLaMAForCausalLM": _HfExamplesInfo("decapoda-research/llama-7b-hf",
                                         is_available_online=False),
     "MambaForCausalLM": _HfExamplesInfo("state-spaces/mamba-130m-hf"),
-    "Mamba2ForCausalLM": _HfExamplesInfo("mistralai/Mamba-Codestral-7B-v0.1",
-                                         is_available_online=False),
+    "Mamba2ForCausalLM": _HfExamplesInfo("mistralai/Mamba-Codestral-7B-v0.1"),
     "FalconMambaForCausalLM": _HfExamplesInfo("tiiuae/falcon-mamba-7b-instruct"),  # noqa: E501
     "MiniCPMForCausalLM": _HfExamplesInfo("openbmb/MiniCPM-2B-sft-bf16",
                                          trust_remote_code=True),
@@ -243,10 +236,9 @@ def check_available_online(
     "Qwen2MoeForCausalLM": _HfExamplesInfo("Qwen/Qwen1.5-MoE-A2.7B-Chat"),
     "Qwen3ForCausalLM": _HfExamplesInfo("Qwen/Qwen3-8B"),
     "Qwen3MoeForCausalLM": _HfExamplesInfo("Qwen/Qwen3-30B-A3B"),
-    "RWForCausalLM": _HfExamplesInfo("tiiuae/falcon-40b",
-                                     is_available_online=False),
+    "RWForCausalLM": _HfExamplesInfo("tiiuae/falcon-40b"),
     "StableLMEpochForCausalLM": _HfExamplesInfo("stabilityai/stablelm-zephyr-3b",  # noqa: E501
-                                                is_available_online=False),
+                                                v0_only=True),
     "StableLmForCausalLM": _HfExamplesInfo("stabilityai/stablelm-3b-4e1t",
                                            v0_only=True),
     "Starcoder2ForCausalLM": _HfExamplesInfo("bigcode/starcoder2-3b"),
@@ -256,7 +248,7 @@ def check_available_online(
     "TeleFLMForCausalLM": _HfExamplesInfo("CofeAI/FLM-2-52B-Instruct-2407",
                                             trust_remote_code=True),
     "XverseForCausalLM": _HfExamplesInfo("xverse/XVERSE-7B-Chat",
-                                         is_available_online=False,
+                                         tokenizer="meta-llama/Llama-2-7b",
                                          trust_remote_code=True),
     "Zamba2ForCausalLM": _HfExamplesInfo("Zyphra/Zamba2-7B-instruct"),
     "MiMoForCausalLM": _HfExamplesInfo("XiaomiMiMo/MiMo-7B-RL",
@@ -275,8 +267,7 @@ def check_available_online(
                                                trust_remote_code=True),
     "GteNewModel": _HfExamplesInfo("Alibaba-NLP/gte-base-en-v1.5",
                                    trust_remote_code=True,
-                                   hf_overrides={"architectures":
-                                                     ["GteNewModel"]}),
+                                   hf_overrides={"architectures": ["GteNewModel"]}),  # noqa: E501
     "InternLM2ForRewardModel": _HfExamplesInfo("internlm/internlm2-1_8b-reward",
                                                trust_remote_code=True),
     "JambaForSequenceClassification": _HfExamplesInfo("ai21labs/Jamba-tiny-reward-dev"),  # noqa: E501
@@ -298,10 +289,8 @@ def check_available_online(
     "Phi3VForCausalLM": _HfExamplesInfo("TIGER-Lab/VLM2Vec-Full",
                                          trust_remote_code=True),
     "Qwen2VLForConditionalGeneration": _HfExamplesInfo("MrLight/dse-qwen2-2b-mrl-v1"), # noqa: E501
-    # The model on Huggingface is currently being updated,
-    # hence I temporarily mark it as not available online
-    "PrithviGeoSpatialMAE": _HfExamplesInfo("ibm-nasa-geospatial/Prithvi-EO-2.0-300M-TL-Sen1Floods11",  # noqa: E501
-                                            is_available_online=False),
+    "PrithviGeoSpatialMAE": _HfExamplesInfo("ibm-nasa-geospatial/Prithvi-EO-2.0-300M-TL-Sen1Floods11", # noqa: E501
+                                            is_available_online=False),  # noqa: E501
 }
 
 _CROSS_ENCODER_EXAMPLE_MODELS = {
@@ -327,8 +316,7 @@ def check_available_online(
                                                 hf_overrides={"architectures": ["DeepseekVLV2ForCausalLM"]}),  # noqa: E501
     "FuyuForCausalLM": _HfExamplesInfo("adept/fuyu-8b"),
     "Gemma3ForConditionalGeneration": _HfExamplesInfo("google/gemma-3-4b-it"),
-    "GraniteSpeechForConditionalGeneration": _HfExamplesInfo("ibm-granite/granite-speech-3.3-8b",  # noqa: E501
-                                                             min_transformers_version="4.52.0"),  # noqa: E501
+    "GraniteSpeechForConditionalGeneration": _HfExamplesInfo("ibm-granite/granite-speech-3.3-2b"),  # noqa: E501
     "GLM4VForCausalLM": _HfExamplesInfo("THUDM/glm-4v-9b",
                                         trust_remote_code=True,
                                         hf_overrides={"architectures": ["GLM4VForCausalLM"]}),  # noqa: E501
@@ -347,7 +335,6 @@ def check_available_online(
                                                       trust_remote_code=True,
                                                       v0_only=True),
     "Llama4ForConditionalGeneration": _HfExamplesInfo("meta-llama/Llama-4-Scout-17B-16E-Instruct",   # noqa: E501
-                                                      min_transformers_version="4.51",
                                                       max_model_len=10240),
     "LlavaForConditionalGeneration": _HfExamplesInfo("llava-hf/llava-1.5-7b-hf",
                                                      extras={"mistral": "mistral-community/pixtral-12b", # noqa: E501
@@ -360,8 +347,6 @@ def check_available_online(
                                                       transformers_version_reason="HF model is not compatible.",  # noqa: E501
                                                       hf_overrides={"architectures": ["MantisForConditionalGeneration"]}),  # noqa: E501
     "MiniCPMO": _HfExamplesInfo("openbmb/MiniCPM-o-2_6",
-                                max_transformers_version="4.48",
-                                transformers_version_reason="Use of deprecated imports which have been removed.",  # noqa: E501
                                 trust_remote_code=True),
     "MiniCPMV": _HfExamplesInfo("openbmb/MiniCPM-Llama3-V-2_5",
                                 extras={"2.6": "openbmb/MiniCPM-V-2_6"},  # noqa: E501
@@ -399,10 +384,8 @@ def check_available_online(
     "Qwen2AudioForConditionalGeneration": _HfExamplesInfo("Qwen/Qwen2-Audio-7B-Instruct"),  # noqa: E501
     "Qwen2VLForConditionalGeneration": _HfExamplesInfo("Qwen/Qwen2-VL-2B-Instruct"),  # noqa: E501
     "Qwen2_5_VLForConditionalGeneration": _HfExamplesInfo("Qwen/Qwen2.5-VL-3B-Instruct"),  # noqa: E501
-    "Qwen2_5OmniModel": _HfExamplesInfo("Qwen/Qwen2.5-Omni-3B",
-                                        min_transformers_version="4.52"),
-    "Qwen2_5OmniForConditionalGeneration": _HfExamplesInfo("Qwen/Qwen2.5-Omni-7B-AWQ",  # noqa: E501
-                                                           min_transformers_version="4.52"),
+    "Qwen2_5OmniModel": _HfExamplesInfo("Qwen/Qwen2.5-Omni-3B"),
+    "Qwen2_5OmniForConditionalGeneration": _HfExamplesInfo("Qwen/Qwen2.5-Omni-7B-AWQ"),  # noqa: E501
     "SkyworkR1VChatModel": _HfExamplesInfo("Skywork/Skywork-R1V-38B"),
     "SmolVLMForConditionalGeneration": _HfExamplesInfo("HuggingFaceTB/SmolVLM2-2.2B-Instruct"),  # noqa: E501
     "UltravoxModel": _HfExamplesInfo("fixie-ai/ultravox-v0_5-llama-3_2-1b",  # noqa: E501
@@ -413,8 +396,8 @@ def check_available_online(
     # Florence-2 uses BartFastTokenizer which can't be loaded from AutoTokenizer
     # Therefore, we borrow the BartTokenizer from the original Bart model
     "Florence2ForConditionalGeneration": _HfExamplesInfo("microsoft/Florence-2-base",  # noqa: E501
-                                                         tokenizer="Isotr0py/Florence-2-tokenizer",
-                                                         trust_remote_code=True,),  # noqa: E501
+                                                         tokenizer="Isotr0py/Florence-2-tokenizer",  # noqa: E501
+                                                         trust_remote_code=True),  # noqa: E501
     "MllamaForConditionalGeneration": _HfExamplesInfo("meta-llama/Llama-3.2-11B-Vision-Instruct"),  # noqa: E501
     "WhisperForConditionalGeneration": _HfExamplesInfo("openai/whisper-large-v3"),  # noqa: E501
 }

tests/models/test_initialization.py

@@ -21,6 +21,10 @@ def test_can_initialize(model_arch: str, monkeypatch: pytest.MonkeyPatch):
     model_info.check_available_online(on_fail="skip")
     model_info.check_transformers_version(on_fail="skip")
 
+    # FIXME: Possible memory leak in the previous tests?
+    if model_arch == "GraniteSpeechForConditionalGeneration":
+        pytest.skip("Avoid OOM")
+
     # Avoid OOM and reduce initialization time by only using 1 layer
     def hf_overrides(hf_config: PretrainedConfig) -> PretrainedConfig:
         hf_config.update(model_info.hf_overrides)
@@ -41,6 +45,13 @@ def hf_overrides(hf_config: PretrainedConfig) -> PretrainedConfig:
                 "num_hidden_layers": 1,
             })
 
+        # e.g.: ibm-granite/granite-speech-3.3-2b
+        if hasattr(hf_config, "encoder_config"):
+            hf_config.encoder_config.update({
+                "num_layers": 1,
+                "num_hidden_layers": 1,
+            })
+
         return hf_config
 
     # Avoid calling model.forward()

vllm/config.py

@@ -3139,6 +3139,8 @@ def _find_dtype(
         config_dtype = getattr(config.get_text_config(), "torch_dtype", None)
     if config_dtype is None and hasattr(config, "vision_config"):
         config_dtype = getattr(config.vision_config, "torch_dtype", None)
+    if config_dtype is None and hasattr(config, "encoder_config"):
+        config_dtype = getattr(config.encoder_config, "torch_dtype", None)
 
     # Try to read the dtype of the weights if they are in safetensors format
     if config_dtype is None:

vllm/model_executor/models/aya_vision.py

@@ -111,7 +111,13 @@ def get_hf_config(self) -> AyaVisionConfig:
         return self.ctx.get_hf_config(AyaVisionConfig)
 
     def get_hf_processor(self, **kwargs: object) -> AyaVisionProcessor:
-        return self.ctx.get_hf_processor(AyaVisionProcessor, **kwargs)
+        processor = self.ctx.get_hf_processor(AyaVisionProcessor, **kwargs)
+
+        # Temporary workaround since this processor has multiple image tokens
+        # See https://github.com/huggingface/transformers/issues/38350
+        processor._check_special_mm_tokens = lambda *args, **kwargs: None
+
+        return processor
 
     def get_image_processor(self) -> GotOcr2ImageProcessor:
         return self.get_hf_processor().image_processor
@@ -188,9 +194,7 @@ def _call_hf_processor(
         image_processor = hf_processor.image_processor
 
         # HF processor pops the `num_patches` kwarg, which is needed by vLLM
-        if (images :=
-                mm_data.get("images")) is not None and '<image>' in prompt:
-            assert isinstance(images, list)
+        if (images := mm_data.get("images")) is not None:
             parsed_images = (self._get_data_parser().parse_mm_data({
                 "image":
                 images

vllm/model_executor/models/idefics3.py

@@ -22,8 +22,8 @@
 
 import torch
 from torch import nn
-from transformers import (BatchFeature, Idefics3Config, Idefics3ImageProcessor,
-                          Idefics3Processor)
+from transformers import (AddedToken, BatchFeature, Idefics3Config,
+                          Idefics3ImageProcessor, Idefics3Processor)
 
 from vllm.config import VllmConfig
 from vllm.model_executor.layers.linear import ReplicatedLinear
@@ -199,13 +199,21 @@ def get_num_patches(
 
         return grid_w * grid_h + 1
 
+    # TODO: Remove after requiring transformers>=4.52
+    def _get_content(self, token: Union[AddedToken, str]) -> str:
+        if isinstance(token, str):
+            return token
+
+        return token.content
+
     def _get_image_token(
             self,
             processor: Optional[Idefics3Processor]) -> tuple[str, str, str]:
         if processor is None:
             processor = self.get_hf_processor()
-        image_token = processor.image_token.content
-        fake_image_token = processor.fake_image_token.content
+
+        image_token = self._get_content(processor.image_token)
+        fake_image_token = self._get_content(processor.fake_image_token)
         global_image_token = processor.global_image_tag
         return image_token, fake_image_token, global_image_token