ResearchResearch paperLarge Language Models · Reasoning & Planning · Efficiency & Inference1 source · Oct 8, 2026

From Chain-of-Thought to Loops: Non-Autoregressive Latent Reasoning via Looped Transformers

We introduce LLoCoT: a looped latent-reasoning framework that replaces left-to-right latent generation with iterative refinement of a compact latent workspace.

Key points

  • Chain-of-thought (CoT) reasoning often improves language-model performance by giving models additional computation before answering.
  • Latent reasoning replaces these tokens with compact continuous states, but most autoregressive latent-reasoning methods retain a left-to-right dependency among latent vectors.
  • Training uses continuous representations derived from explicit CoT together with a final-answer prediction loss and likelihood-based supervision of the latent states.
  • This design replaces serial thought generation with parallel latent-slot refinement while retaining probabilistic latent modeling and autoregressive answer decoding.

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