SPA-Cache: Singular Proxies for Adaptive Caching in Diffusion Language Models

📰 ArXiv cs.AI

Learn how SPA-Cache optimizes Diffusion Language Models with adaptive caching, reducing costly hidden state recomputation

advanced Published 26 May 2026
Action Steps
  1. Implement SPA-Cache in your DLM architecture to enable adaptive caching
  2. Replace traditional KV caching with singular proxies for more efficient hidden state updates
  3. Configure the caching budget to balance computational costs and model performance
  4. Test the impact of SPA-Cache on your model's decoding speed and accuracy
  5. Compare the results with existing caching approaches to evaluate the effectiveness of SPA-Cache
Who Needs to Know This

NLP engineers and researchers working with Diffusion Language Models can benefit from this technique to improve model efficiency and reduce computational costs

Key Insight

💡 SPA-Cache enables efficient caching in Diffusion Language Models by using singular proxies and adaptive budgeting

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🚀 Improve DLM efficiency with SPA-Cache! Adaptive caching reduces hidden state recomputation costs 🤖

Key Takeaways

Learn how SPA-Cache optimizes Diffusion Language Models with adaptive caching, reducing costly hidden state recomputation

Full Article

Title: SPA-Cache: Singular Proxies for Adaptive Caching in Diffusion Language Models

Abstract:
arXiv:2602.02544v2 Announce Type: replace-cross Abstract: While Diffusion Language Models (DLMs) offer a flexible, arbitrary-order alternative to the autoregressive paradigm, their non-causal nature precludes standard KV caching, forcing costly hidden state recomputation at every decoding step. Existing DLM caching approaches reduce this cost by selective hidden state updates; however, they are still limited by (i) costly token-wise update identification heuristics and (ii) rigid, uniform budget
Read full paper → ← Back to Reads

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