# Checkpoint conversion
python -m maxtext.checkpoint_conversion.to_maxtext src/maxtext/configs/base.yml model_name=qwen3-vl-4b base_output_directory=gs://hengtaoguo-maxtext-logs/checkpoints/qwen3-vl-4b/unscanned/2026-06-24-15-27 scan_layers=false hf_access_token=<your_token> weight_dtype=bfloat16 hardware=cpu skip_jax_distributed_system=True checkpoint_storage_use_ocdbt=False checkpoint_storage_use_zarr3=False --eager_load_method=safetensors --lazy_load_tensors=False

# Image decode check
python -m maxtext.inference.decode maxtext/configs/base.yml model_name=qwen3-vl-4b tokenizer_path=Qwen/Qwen3-VL-4B-Instruct tokenizer_type=huggingface load_parameters_path=gs://hengtaoguo-maxtext-logs/checkpoints/qwen3-vl-4b/unscanned/2026-06-24-15-27/0/items per_device_batch_size=1 run_name=ht_test scan_layers=false use_multimodal=true prompt=\'Describe\ this\ image\' image_path=\'tests/assets/test_image.jpg\' max_prefill_predict_length=512 max_target_length=768 ici_tensor_parallelism=4 override_model_config=true attention=\'dot_product\' hf_access_token=<your_token>

# Outputs
Input `<|im_start|>user
<|vision_start|><|image_pad|><|vision_end|>Describe this image<|im_end|>
<|im_start|>assistant
` -> `This image captures a vibrant, sunlit panoramic view of Seattle, Washington, under a clear blue sky. The most iconic landmark, the Space Needle, stands prominently in the center-left of the frame, its distinctive futuristic design rising above the surrounding urban landscape.

# Video decode check
python -m maxtext.inference.decode maxtext/configs/base.yml model_name=qwen3-vl-4b tokenizer_path=Qwen/Qwen3-VL-4B-Instruct tokenizer_type=huggingface load_parameters_path=gs://hengtaoguo-maxtext-logs/checkpoints/qwen3-vl-4b/unscanned/2026-06-24-15-27/0/items per_device_batch_size=1 run_name=ht_test scan_layers=false use_multimodal=true prompt=\'What\ is\ the\ classification\ of\ the\ single\ exhibit\ in\ this\ video\?\' video_path=\'tests/assets/test_video.mp4\' max_prefill_predict_length=1240 max_target_length=1280 ici_tensor_parallelism=4 override_model_config=true attention=\'dot_product\' hf_access_token=<your_token>

# Outputs
Input `<|im_start|>user
<|vision_start|><|video_pad|><|vision_end|>What is the classification of the single exhibit in thisvideo?<|im_end|>
<|im_start|>assistant
` -> `The exhibit in the video is a **dinosaur model**, specifically a **Tyrannosaurus rex** (or a similar large theropod dinosaur) displayed in a **museum or exhibition setting`