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requirements-demo.txt

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+# Dependencies for demo_app.py. Standalone (does not extend requirements.txt)
+# because gradio==4.44.1 needs an older pillow/pydantic/starlette/fastapi
+# stack than the core requirements.txt allows -- newer versions of those
+# (installed by an unpinned `pip install gradio`) hit real bugs: gradio
+# also needs huggingface_hub>=1.0, which conflicts with transformers==4.53.0
+# (the version needed to load this checkpoint's state dict -- see
+# requirements.txt), and newer pydantic/starlette combined with gradio
+# 4.44.1 hit upstream schema/template-caching bugs that break the page
+# entirely. This exact combination was verified working end-to-end
+# (server boots, page loads, /predict returns correct results).
+torch==2.7.1
+transformers==4.53.0
+huggingface_hub==0.33.2
+opencv-python-headless==4.12.0.88
+gradio==4.44.1
+gradio_client==1.3.0
+pydantic==2.9.2
+starlette==0.37.2
+fastapi==0.115.0
+jinja2==3.1.4
+anyio==4.4.0