Detect MultiCodeDecoder dimensions per multifunction schema - #521
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ZachNagengast
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Aug 5, 2026
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The fused and stepped functions expose different I/O, so
loadModelwas probingnames (
key_cache_updates,key_padding_mask,all_logits,input_embeds) thatonly exist on the stepped graph and silently leaving
codecVocabSize/inputEmbedDimat their defaults in fused mode.Read each function's own schema instead:
gumbelandcode0_hidden_stateswhenfused, the existing names when stepped. Cache geometry stays at its defaults in
fused mode — that graph owns its KV cache.