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Paper#llm🔬 ResearchAnalyzed: Jan 3, 2026 16:16

CoT's Faithfulness Questioned: Beyond Hint Verbalization

Published:Dec 28, 2025 18:18
1 min read
ArXiv

Analysis

This paper challenges the common understanding of Chain-of-Thought (CoT) faithfulness in Large Language Models (LLMs). It argues that current metrics, which focus on whether hints are explicitly verbalized in the CoT, may misinterpret incompleteness as unfaithfulness. The authors demonstrate that even when hints aren't explicitly stated, they can still influence the model's predictions. This suggests that evaluating CoT solely on hint verbalization is insufficient and advocates for a more comprehensive approach to interpretability, including causal mediation analysis and corruption-based metrics. The paper's significance lies in its re-evaluation of how we measure and understand the inner workings of CoT reasoning in LLMs, potentially leading to more accurate and nuanced assessments of model behavior.
Reference

“Many CoTs flagged as unfaithful by Biasing Features are judged faithful by other metrics, exceeding 50% in some models.”

PermalinkArXiv
Research#llm🔬 ResearchAnalyzed: Jan 4, 2026 09:33

Direct Confidence Alignment: Aligning Verbalized Confidence with Internal Confidence In Large Language Models

Published:Dec 12, 2025 19:29
1 min read
ArXiv

Analysis

This article focuses on improving the reliability of Large Language Models (LLMs) by ensuring the confidence expressed by the model aligns with its internal certainty. This is a crucial step towards building more trustworthy and dependable AI systems. The research likely explores methods to calibrate the model's output confidence, potentially using techniques to map internal representations to verbalized confidence levels. The source, ArXiv, suggests this is a pre-print, indicating ongoing research.
Reference

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PermalinkArXiv
Research#llm📝 BlogAnalyzed: Dec 29, 2025 06:07

Scaling Up Test-Time Compute with Latent Reasoning with Jonas Geiping - #723

Published:Mar 17, 2025 15:37
1 min read
Practical AI

Analysis

This article summarizes a podcast episode discussing a new language model architecture. The focus is on a paper proposing a recurrent depth approach for "thinking in latent space." The discussion covers internal versus verbalized reasoning, how the model allocates compute based on token difficulty, and the architecture's advantages, including zero-shot adaptive exits and speculative decoding. The article highlights the model's simplification of LLMs, its parallels to diffusion models, and its performance on reasoning tasks. The challenges of comparing models with different compute budgets are also addressed.
Reference

“This paper proposes a novel language model architecture which uses recurrent depth to enable “thinking in latent space.””

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