Add VibeVoice ASR BitNet artifact safeguards - #732
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Identify the pinned I2_S and I8_S formats before generic GGUF parsing so Mobius fails closed rather than producing an inaccurate ONNX conversion. Record exact artifact fingerprints and surface the restriction in Hub preflight. Co-authored-by: Copilot App <[email protected]> Signed-off-by: Justin Chu <[email protected]> Copilot-Session: d55a8ffc-5b22-499b-bf8b-2a70439dd660
Collecting native tensor type IDs must not require a default argument on injected readers or replace established descriptor-shape validation. Co-authored-by: Copilot App <[email protected]> Signed-off-by: Justin Chu <[email protected]> Copilot-Session: d55a8ffc-5b22-499b-bf8b-2a70439dd660
Pin and classify the official dense F32 safetensors source for staged export while rejecting coupled native I2_S/I8_S GGUF artifacts whose execution semantics cannot be preserved. Co-authored-by: Copilot App <[email protected]> Copilot-Session: d55a8ffc-5b22-499b-bf8b-2a70439dd660 Signed-off-by: Justin Chu <[email protected]>
Record the pinned dense F32 conversion source and explicit native I2_S/I8_S GGUF rejection, while preserving source-revision metadata through alternate architecture dispatch. Co-authored-by: Copilot App <[email protected]> Copilot-Session: d55a8ffc-5b22-499b-bf8b-2a70439dd660 Signed-off-by: Justin Chu <[email protected]>
Performance Comparison
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Summary
microsoft/VibeVoice-ASR-BitNet@66e78021ab8f5f06133d1ab421ba4d348bda97c9and stream its dense F32 safetensors as the staged ONNX conversion sourceValidation
Evidence and limits
The release GGUFs require VibeASR.cpp packed ternary/I8_S layouts and custom CPU kernels, so generic GGUF/affine ONNX conversion is explicitly unsupported. Real-weight L4/L5 transcription, native ternary/scale parity, native runtime performance, and quantization round-trip fidelity are not claimed.
Stacked on #730.