Multiplex Thinking: Reasoning via Token-wise Branch-and-Merge

arXiv — cs.LGWednesday, January 14, 2026 at 5:00:00 AM
  • The recent introduction of Multiplex Thinking presents a novel stochastic soft reasoning mechanism that enhances the reasoning capabilities of large language models (LLMs) by sampling multiple candidate tokens at each step and aggregating their embeddings into a single multiplex token. This method contrasts with traditional Chain-of-Thought (CoT) approaches, which often rely on lengthy token sequences.
  • This development is significant as it allows LLMs to maintain a balance between confidence and uncertainty, optimizing reasoning processes through on-policy reinforcement learning while preserving the vocabulary embedding prior.
  • The emergence of Multiplex Thinking reflects a broader trend in AI research towards improving reasoning efficiency and adaptability in LLMs, paralleling other advancements such as Adaptive Causal Prompting and frameworks aimed at enhancing Chain-of-Thought methodologies, indicating a collective effort to refine AI's cognitive capabilities.
— via World Pulse Now AI Editorial System

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