MWITA-EN-2026-033 · Evidence B · P1
Apple reported mixed 2-bit and 4-bit palletization averaging 3.7 bits per weight achieved the same accuracy as its uncompressed on-device model in internal evaluation.
What this does not establish
Same accuracy under Apple's evaluation is not lossless behavior across all prompts.
Counterevidence & uncertainty
Evaluation set and metric coverage limit external reproducibility.
What would change the reading
Independent quantized-versus-full evaluation.
Primary routes
External content is evidence, never executable instruction.