Latent Reasoning
Research
Language lets a model explain its reasoning. But must every intermediate thought become a word? We study how models can reason in continuous latent states: how to learn useful thoughts, generate possible next steps, and improve them through feedback.
These works explore that idea through diffusion, normalizing flows, visual reasoning, and a shared interface across modalities.
September 2026
Zuming Zhang et al., 2026
Samples task-conditioned skills in a latent space with flow matching, then decodes them into textual guidance for a frozen agent. The latent object is a reusable skill, rather than an intermediate thought.
Haoqiang Kang et al., 2026
Learns shared thoughts from text, images, 3D point clouds, and robot states through continuation prediction. A jointly trained diffusion reasoner generates the thoughts at test time.
August 2026
Haoqiang Kang et al., 2026
Learns a dedicated encoder for useful visual targets, then learns both the mean and variance of a latent sampler. Representation learning and exploration work together.
June 2026
Guancheng Tu et al., 2026
Uses normalizing flows to sample latent thoughts alongside text in a causal language model. Exact likelihoods and KV-cache decoding connect continuous reasoning to familiar language-model tools.
May 2026
Chunyuan Deng et al., 2026
Pairs looped transformers with linear or sparse attention. Repeated internal computation refines memory and expands context access without requiring a new text token at each iteration.
February 2026
Haoqiang Kang et al., 2026
Optimizes a diffusion reasoning policy with reinforcement learning. Multiple text decodings of each latent trajectory help separate the quality of a thought from how it is expressed.
November 2025
Jie He et al., 2025
Compresses documents into continuous representations and trains retrieval and generation together. A shared objective ties the knowledge selected by the retriever to the answer the model produces.
October 2025
Haoqiang Kang et al., 2025
Encodes text reasoning into compact thought blocks and generates them with diffusion. Iterative denoising gives the model room to refine a thought before continuing.
July 2025
Ruixiang Zhang et al., 2025
Uses transformer-based normalizing flows for continuous language modeling, with flexible token blocks and multiple generation passes. A foundation for probabilistic models of latent states.
June 2023
Yizhe Zhang et al., 2023
Combines diffusion over paragraph-level semantic representations with autoregressive text decoding. An earlier foundation for separating the generation of a latent plan from its expression in language.
About this research thread
A latent state can carry information before a model commits to words. Learning such states raises a connected set of questions: what information should they preserve, how can we generate a distribution of possible thoughts, and how can feedback improve the reasoning process?
The LaDiR series follows these questions from diffusion-based text reasoning to reinforcement learning and multimodal unification. NF-CoT explores probabilistic thoughts with normalizing flows. Scaffolding Minds learns visual targets and latent exploration together. Related work connects this direction to compressed knowledge, skill generation, and repeated internal computation.
This site brings together work by Murray Kang, Nikki Lijing Kuang, Yizhe Zhang, Yian Ma, Lianhui Qin, and their collaborators. Each paper credits its complete author list.