Future-aware distillation corrects teacher-student information mismatch in block diffusion language models

d-OPD modifies on-policy distillation to account for visible future context within each block, improving generation quality and training efficiency.

Big Tech
Ruitao Liu · Qinghao Hu · Song Han

Tsinghua University · MIT · NVIDIA

Research Digest··3 min read
The authors introduce d-OPD, a future-aware on-policy distillation method for converting autoregressive LLMs into block diffusion language models.

The authors identify a key mismatch in on-policy distillation (OPD) when converting autoregressive (AR) language models into block diffusion language models (dLLMs).

Why this paper

From NVIDIA and 2 others · Released code

In one line

Correcting an autoregressive teacher's next-token distribution with visible future context improves distillation of block diffusion language models from pretrained AR models.

What it released

Code

What we could check

  • ✓Code link in the paper (github.com)
  • ·No weights link found
  • ·No dataset link found
  • ·No compute details found
  • ·No stated limitations found
  • ·No benchmark numbers found

Observed from the paper text and links we have. Absence here means we did not find it, not that it does not exist.

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