Revisiting Test-Time Scaling: A Survey and a Diversity-Aware Method for Efficient Reasoning
On the map: LLM reasoning → Test-time compute and efficient thinking
Abstract (arXiv)
Test-Time Scaling (TTS) improves the reasoning performance of Large Language Models (LLMs) by allocating additional compute during inference. We conduct a structured survey of TTS methods and categorize them into sampling-based, search-based, and trajectory optimization strategies. We observe that reasoning-optimized models often produce less diverse outputs, which limits TTS effectiveness. To address this, we propose ADAPT (A Diversity Aware Prefix fine-Tuning), a lightweight method that applies prefix tuning with a diversity-focused data strategy. Experiments on mathematical reasoning tasks show that ADAPT reaches 80% accuracy using eight times less compute than strong baselines. Our findings highlight the essential role of generative diversity in maximizing TTS effectiveness.
Key facts. Cited by 9 papers in the map (data through 14 Oct 2026). Placed in Test-time compute and efficient thinking, one of 17 directions in LLM reasoning. Builds on 78 of its 104 references that are in the map. First posted on arXiv 5 Jun 2025.
Builds on
78 of 104 references.
Closest ancestors · 19
Same direction, newest first
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- 2025Think Twice: Enhancing LLM Reasoning by Scaling Multi-round Test-time Thinking25 Mar
- 2025Stop Overthinking: A Survey on Efficient Reasoning for Large Language Models20 Mar
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- 2025Reasoning with Latent Thoughts: On the Power of Looped Transformers24 Feb
- 2025Scaling Test-Time Compute Without Verification or RL is Suboptimal17 Feb
7 more
- 2025Atom of Thoughts for Markov LLM Test-Time Scaling17 Feb
- 2025Rethinking Fine-Tuning when Scaling Test-Time Compute: Limiting Confidence Improves Mathematical Reasoning11 Feb
- 2025Latent Thought Models with Variational Bayes Inference-Time Computation3 Feb
- 2024Inference-Aware Fine-Tuning for Best-of-N Sampling in Large Language Models18 Dec
- 2024Forest-of-Thought: Scaling Test-Time Compute for Enhancing LLM Reasoning12 Dec
- 2024Scaling LLM Test-Time Compute Optimally can be More Effective than Scaling Model Parameters6 Aug
- 2023Tree of Thoughts: Deliberate Problem Solving with Large Language Models17 May
Other references · 59
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- 2020Scaling Laws for Neural Language Modelscited by 6,586
- 2025DeepSeek-R1: Incentivizing Reasoning Capability in LLMs via Reinforcement Learningcited by 6,330
- 2022Self-Consistency Improves Chain of Thought Reasoning in Language Modelscited by 5,708
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- 2018Think you have Solved Question Answering? Try ARC, the AI2 Reasoning Challengecited by 4,886
- 2023Let's Verify Step by Stepcited by 3,789
- 2021Program Synthesis with Large Language Modelscited by 3,637
- 2022Training Compute-Optimal Large Language Modelscited by 3,019
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- 2025Does Reinforcement Learning Really Incentivize Reasoning Capacity in LLMs Beyond the Base Model?cited by 982
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- 2024Training Large Language Models to Reason in a Continuous Latent Spacecited by 797
- 2023Distilling Step-by-Step! Outperforming Larger Language Models with Less Training Data and Smaller Model Sizescited by 737
- 2022Automatic Chain of Thought Prompting in Large Language Modelscited by 688
- 2022PAL: Program-aided Language Modelscited by 652
- 2024GSM-Symbolic: Understanding the Limitations of Mathematical Reasoning in Large Language Modelscited by 550
- 2024Mixture-of-Agents Enhances Large Language Model Capabilitiescited by 438
- 2024Robotic Control via Embodied Chain-of-Thought Reasoningcited by 346
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- 2022Transformers Learn Shortcuts to Automatacited by 268
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- 2025Is Best-of-N the Best of Them? Coverage, Scaling, and Optimality in Inference-Time Alignmentcited by 97
- 2025A Sober Look at Progress in Language Model Reasoning: Pitfalls and Paths to Reproducibilitycited by 93
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- 2025Two Heads are Better Than One: Test-time Scaling of Multi-agent Collaborative Reasoningcited by 29
50 most cited of 59 All 59 (JSON)
Built on by
Citing papers per year: 2025: 4; 2026: 5.
9 papers.
- 2025Reasoning Path Divergence: A New Metric and Curation Strategy to Unlock LLM Diverse Thinkingcited by 10
- 2025LatentEvolve: Self-Evolving Test-Time Scaling in Latent Spacecited by 9
- 2025Trust but Verify! A Survey on Verification Design for Test-time Scalingcited by 8
- 2026LaDi-RL: Latent Diffusion Reasoning Prevents Entropy Collapse in Reinforcement Learningcited by 7
- 2025Test-time Diverse Reasoning by Riemannian Activation Steeringcited by 4
- 2026A Survey on Self-Improving Test-Time Intelligence: Feedback-Driven Adapting, Learning, and Scaling at Inferencecited by 3
- 2026From Exposure to Internalization: Dual-Stream Calibration for In-context Clinical Reasoningcited by 0
- 2026It's the Decoding Format, Not the Perturbation: Auditing Consistency-Based Selection for Vision-Language Test-Time Scalingcited by 0
- 2026When does a scaling result justify a different allocation? A critical review of resource-allocation evidence for AI systemscited by 0
- 2026When does a scaling result justify a different allocation? A critical review of resource-allocation evidence for AI systems13 Sep 2026
- 2026A Survey on Self-Improving Test-Time Intelligence: Feedback-Driven Adapting, Learning, and Scaling at Inference1 Sep 2026
- 2026It's the Decoding Format, Not the Perturbation: Auditing Consistency-Based Selection for Vision-Language Test-Time Scaling2 Aug 2026
- 2026From Exposure to Internalization: Dual-Stream Calibration for In-context Clinical Reasoning7 Apr 2026
- 2026LaDi-RL: Latent Diffusion Reasoning Prevents Entropy Collapse in Reinforcement Learning2 Feb 2026
- 2025Test-time Diverse Reasoning by Riemannian Activation Steering11 Nov 2025
- 2025Reasoning Path Divergence: A New Metric and Curation Strategy to Unlock LLM Diverse Thinking30 Oct 2025
- 2025LatentEvolve: Self-Evolving Test-Time Scaling in Latent Space29 Sep 2025
- 2025Trust but Verify! A Survey on Verification Design for Test-time Scaling20 Aug 2025
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