When to Plan, When to Polish: Noise Level as a Granularity Axis for Diffusion Language Models
Standard tokenwise diffusion LMs keep training corruption and inference commitment at token granularity throughout denoising. At high noise, this leaves scattered local fragments rather than coherent evidence, making it hard to form early coarse structure, exactly what planning-sensitive generation requires. Hierarchical planning methods add coarse stages to separate planning from wording, but they need extra planners, block latents, or two stage designs. We propose Noise Dependent Granularity Control (NDGC), a single-level diffusion method that uses the noise level as a granularity cue. NDGC aligns training exposure and inference commitment with denoising progress. High noise steps use c...
| Authors | Peihong Li, Yuanjie Shi, Yan Yan |
|---|---|
| Primary category | cs.CL |
| Published | 19 June 2026 |
| Last updated at source | 17 August 2026 |
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