# Hallucination detection and mitigation

Area: [LLM reasoning](https://mlsanity.com/lr/index.md). HTML: https://mlsanity.com/lr/hallucination-detection-and-mitigation/

## Key facts

- Hallucination detection and mitigation: 159 papers on arXiv since 2022 (data through 14 Oct 2026).
- 7 of its 159 mapped papers (4%) cite “More Thinking, Less Seeing? Assessing Amplified Hallucination in Multimodal Reasoning Models” (2025, arXiv 2505.21523).
- 6 of its 159 mapped papers (4%) cite “Are Reasoning Models More Prone to Hallucination?” (2025, arXiv 2505.23646).
- 7 new papers 17 Sep–14 Oct.

## Most cited here

- [More Thinking, Less Seeing? Assessing Amplified Hallucination in Multimodal Reasoning Models](https://mlsanity.com/paper/2505.21523/) (2025), cited by 7 papers here
- [Are Reasoning Models More Prone to Hallucination?](https://mlsanity.com/paper/2505.23646/) (2025), cited by 6 papers here
- [Detection and Mitigation of Hallucination in Large Reasoning Models: A Mechanistic Perspective](https://mlsanity.com/paper/2505.12886/) (2025), cited by 5 papers here
- [Medical Hallucinations in Foundation Models and Their Impact on Healthcare](https://mlsanity.com/paper/2503.05777/) (2025), cited by 4 papers here
- [MIRAGE: Assessing Hallucination in Multimodal Reasoning Chains of MLLM](https://mlsanity.com/paper/2505.24238/) (2025), cited by 4 papers here
- [Chain-of-Thought Prompting Obscures Hallucination Cues in Large Language Models: An Empirical Evaluation](https://mlsanity.com/paper/2506.17088/) (2025), cited by 4 papers here
- [Auditing Meta-Cognitive Hallucinations in Reasoning Large Language Models](https://mlsanity.com/paper/2505.13143/) (2025), cited by 3 papers here
- [Joint Evaluation of Answer and Reasoning Consistency for Hallucination Detection in Large Reasoning Models](https://mlsanity.com/paper/2506.04832/) (2025), cited by 3 papers here
- [Mitigating Object Hallucination via Concentric Causal Attention](https://mlsanity.com/paper/2410.15926/) (2024), cited by 2 papers here
- [Combating Multimodal LLM Hallucination via Bottom-Up Holistic Reasoning](https://mlsanity.com/paper/2412.11124/) (2024), cited by 2 papers here

## New (17 Sep–14 Oct)

- [Hallucination-aware Faithful Reasoning in Remote Sensing](https://mlsanity.com/paper/2610.18369/) (2026-10-13)
- [PHRBench: A Behavioral Evaluation of Post-Hallucination Reasoning in LLMs](https://mlsanity.com/paper/2610.10455/) (2026-10-07)
- [Hallucination Across the Reasoning Lifecycle: Interface Visibility, Causal Evidence, and Release Control in Large Reasoning Models](https://mlsanity.com/paper/2610.05472/) (2026-10-04)
- [External Observers May See More Clearly: Cross-Model Span-Level Hallucination Detection in Large Language Models via Hidden State Probing](https://mlsanity.com/paper/2610.02066/) (2026-10-01)
- [Alleviating Hallucination in Reasoning Tasks with Training-Free Uncertainty-Guided Steering](https://mlsanity.com/paper/2609.38962/) (2026-09-30)
- [Beneath the Scores: Rethinking Hallucination Evaluation for Video Understanding Models](https://mlsanity.com/paper/2609.28991/) (2026-09-24)
- [DEEPO: Dual-Entropy Enhanced Policy Optimization for Hallucination in MLLMs](https://mlsanity.com/paper/2609.28570/) (2026-09-23)