# Reward modeling and RLHF

Area: [LLM alignment / RLHF / preference optimisation](https://mlsanity.com/alignment/index.md). HTML: https://mlsanity.com/alignment/reward-modeling-and-rlhf/

## Key facts

- Reward modeling and RLHF: 1,065 papers on arXiv since 2017 (data through 14 Oct 2026).
- 505 of its 1,065 mapped papers (47%) cite “Deep reinforcement learning from human preferences” (2017, arXiv 1706.03741).
- 437 of its 1,065 mapped papers (41%) cite “Direct Preference Optimization: Your Language Model is Secretly a Reward Model” (2023, arXiv 2305.18290).
- 31 new papers 17 Sep–14 Oct.

## Most cited here

- [Deep reinforcement learning from human preferences](https://mlsanity.com/paper/1706.03741/) (2017), cited by 505 papers here
- [Direct Preference Optimization: Your Language Model is Secretly a Reward Model](https://mlsanity.com/paper/2305.18290/) (2023), cited by 437 papers here
- [Training a Helpful and Harmless Assistant with Reinforcement Learning from Human Feedback](https://mlsanity.com/paper/2204.05862/) (2022), cited by 335 papers here
- [Fine-Tuning Language Models from Human Preferences](https://mlsanity.com/paper/1909.08593/) (2019), cited by 258 papers here
- [Scaling Laws for Reward Model Overoptimization](https://mlsanity.com/paper/2210.10760/) (2022), cited by 226 papers here
- [Open Problems and Fundamental Limitations of Reinforcement Learning from Human Feedback](https://mlsanity.com/paper/2307.15217/) (2023), cited by 136 papers here
- [RewardBench: Evaluating Reward Models for Language Modeling](https://mlsanity.com/paper/2403.13787/) (2024), cited by 136 papers here
- [PEBBLE: Feedback-Efficient Interactive Reinforcement Learning via Relabeling Experience and Unsupervised Pre-training](https://mlsanity.com/paper/2106.05091/) (2021), cited by 117 papers here
- [Reward learning from human preferences and demonstrations in Atari](https://mlsanity.com/paper/1811.06521/) (2018), cited by 115 papers here
- [Principled Reinforcement Learning with Human Feedback from Pairwise or K-wise Comparisons](https://mlsanity.com/paper/2301.11270/) (2023), cited by 109 papers here

## New (17 Sep–14 Oct)

- [Wrong Votes, Right Gradients: Why Majority-Vote Rewards Track Verifiable RL](https://mlsanity.com/paper/2610.20898/) (2026-10-14)
- [RM-OPD: On-Policy Distillation for Generative Reward Models](https://mlsanity.com/paper/2610.20174/) (2026-10-14)
- [Efficient Resource-Shiftable RL Post-training with Generative Rewards](https://mlsanity.com/paper/2610.16866/) (2026-10-12)
- [Single-step Retrosynthesis via Reinforcement Learning from Forward Feedback](https://mlsanity.com/paper/2610.15141/) (2026-10-10)
- [Disentangling Task-Relevant Latent Dynamics for Reward Modeling](https://mlsanity.com/paper/2610.14159/) (2026-10-09)
- [Beyond Temporal Proximity: Explanatory World Models for Credit Assignment in Reinforcement Learning](https://mlsanity.com/paper/2610.13504/) (2026-10-09)
- [EmoGavel: Grounding-Aware Reinforcement Learning with Verifiable Rewards for Multimodal Emotion Preference Learning](https://mlsanity.com/paper/2610.13353/) (2026-10-09)
- [A Scoping Review and Experimental Study on Reinforcement Learning from Human Feedback for Human-Robot Collaboration](https://mlsanity.com/paper/2610.09891/) (2026-10-07)
- [Learning a Ranking from Human Feedback in Log-Concave Random Utility Models](https://mlsanity.com/paper/2610.07973/) (2026-10-06)
- [Groupwise Distortion Guarantees for Preference-Based Alignment](https://mlsanity.com/paper/2610.05450/) (2026-10-04)
- [OuroReward: Sequential Reward Scheduling for Reinforcement Learning in Text-to-3D Generation](https://mlsanity.com/paper/2610.03423/) (2026-10-02)
- [Bandits via Additive Quantized Representations](https://mlsanity.com/paper/2610.02440/) (2026-10-01)
- [Robust Nash Alignment under Preference Uncertainty](https://mlsanity.com/paper/2610.00715/) (2026-09-30)
- [Robust Risk-Sensitive Reinforcement Learning from Corrupted Human Feedback](https://mlsanity.com/paper/2609.38938/) (2026-09-30)
- [Efficient Multi-Modal Planning with Reward-Guided Preference Optimization for Autonomous Driving](https://mlsanity.com/paper/2609.38862/) (2026-09-30)
- [ProgressCompass: Embodied Progress Reward Models Are Lost Without the Right Context](https://mlsanity.com/paper/2609.36684/) (2026-09-29)
- [RankBuffer: Efficient Ranking-Based Rewards for Open-Ended Generation](https://mlsanity.com/paper/2609.36652/) (2026-09-29)
- [Using Context Is Not Enough: Test-Time Training for Personalized Reward Modeling](https://mlsanity.com/paper/2609.35109/) (2026-09-28)
- [Quality Determines Direction, Length Shapes Magnitude: Length Control for Open-Ended Reinforcement Learning](https://mlsanity.com/paper/2609.34718/) (2026-09-28)
- [ARS: Agentic Reward System for Robot Learning](https://mlsanity.com/paper/2609.34484/) (2026-09-28)
- [RewardExplainer: Learning Reward Model Explanations from Counterfactual Preference Feedback](https://mlsanity.com/paper/2609.33989/) (2026-09-27)
- [Achieve What You Imagined: Learning to Align Actions with Visual Plans](https://mlsanity.com/paper/2609.33832/) (2026-09-27)
- [Demonstration-Free Success-Probability Reward Learning for Generalist Robot Policies](https://mlsanity.com/paper/2609.33653/) (2026-09-27)
- [Direct Hidden-State Alignment: Mapping and Controlling Preference Expression in LLMs](https://mlsanity.com/paper/2609.33298/) (2026-09-27)
- [RMB: Reward Model Boosting Mitigates Reward Hacking](https://mlsanity.com/paper/2609.33221/) (2026-09-27)
- [Axiom Satisfiability of Linear Rewards in Alignment](https://mlsanity.com/paper/2610.06892/) (2026-09-26)
- [Saturation-Insensitive Dueling Bandits with General Function Approximation](https://mlsanity.com/paper/2609.33011/) (2026-09-26)
- [Improving LLM Collaboration via Multi-Agent Preference Learning](https://mlsanity.com/paper/2609.32827/) (2026-09-26)
- [BiasReducer: Adaptive Bias Mitigation for Reward Models](https://mlsanity.com/paper/2609.32720/) (2026-09-26)
- [PHIRL: Aligning Learned Rewards with Task Progress for Inverse Reinforcement Learning](https://mlsanity.com/paper/2609.31855/) (2026-09-25)
