---
title: "DeLS-Spec: Decoupled Long-Short Contexts for Parallel Speculative Drafting — Stuff That Spins"
description: "arXiv:2607.07409v1 Announce Type: new Abstract: Speculative decoding accelerates LLM inference by drafting multiple tokens and verifying them in parallel. Bloc…"
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date: "2026-07-09T04:00:00+00:00"
modified: "2026-07-09T06:03:51.021254+00:00"
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# DeLS-Spec: Decoupled Long-Short Contexts for Parallel Speculative Drafting

**Source:** Unknown  
**Published:** July 9, 2026  
**Original:** https://arxiv.org/abs/2607.07409  

## On this page

- [Overview](#overview)

<a id="overview"></a>

## Overview

arXiv:2607.07409v1 Announce Type: new Abstract: Speculative decoding accelerates LLM inference by drafting multiple tokens and verifying them in parallel. Block-parallel drafters such as DFlash further improve drafting efficiency by predicting an entire block in one pass, but their position-wise predictions lack explicit intra-block causal conditioning. Recent methods such as Domino and DSpark attempt to introduce such causality into block-parallel drafting, but they require training the draft m

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