FastDiSS: Few-step Match Many-step Diffusion Language Model on Sequence-to-Sequence Generation--Full Version

📰 ArXiv cs.AI

FastDiSS improves sequence-to-sequence generation with few-step diffusion language models

advanced Published 8 Apr 2026
Action Steps
  1. Identify the limitations of self-conditioning in few-step diffusion language models
  2. Analyze the approximation gap induced by inaccurate self-conditioning
  3. Develop strategies to mitigate this gap, such as the proposed FastDiSS model
  4. Evaluate the performance of FastDiSS in sequence-to-sequence generation tasks
Who Needs to Know This

AI engineers and researchers working on language models can benefit from this study to improve their models' performance in few-step sampling scenarios, and ML researchers can apply these findings to develop more efficient language models

Key Insight

💡 Inaccurate self-conditioning in few-step diffusion language models can lead to a substantial approximation gap, which can be mitigated with strategies like FastDiSS

Share This
💡 FastDiSS improves few-step diffusion language models for sequence-to-sequence generation

Key Takeaways

FastDiSS improves sequence-to-sequence generation with few-step diffusion language models

Full Article

Title: FastDiSS: Few-step Match Many-step Diffusion Language Model on Sequence-to-Sequence Generation--Full Version

Abstract:
arXiv:2604.05551v1 Announce Type: cross Abstract: Self-conditioning has been central to the success of continuous diffusion language models, as it allows models to correct previous errors. Yet its ability degrades precisely in the regime where diffusion is most attractive for deployment: few-step sampling for fast inference. In this study, we show that when models only have a few denoising steps, inaccurate self-conditioning induces a substantial approximation gap; this mistake compounds across
Read full paper → ← Back to Reads

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