[arXiv-2025] Stop Overthinking: A Survey on Efficient Reasoning for Large Language Models_

[arXiv-2025] Self-Training Elicits Concise Reasoning in Large Language Models

[arXiv-2025] CoT-Valve: Length-Compressible Chain-of-Thought Tuning

[arXiv-2025] O1-Pruner: Length-Harmonizing Fine-Tuning for O1-Like Reasoning Pruning