MCTS (LLM reasoning / chain-of-thought): superseded — cited as a baseline and beaten by newer methods. 2 paper(s) critique it, 2 beat it on benchmarks — #12 of 772 most-superseded. Sub-problem: cluster led by MCTS. Newer alternatives in the same sub-problem include rePIRL, CoRD.

LLM reasoning / chain-of-thought

MCTS

Superseded baseline#12 of 772 most-superseded

Superseded — cited as a baseline and beaten by newer methods

2 papers critique it · 2 beat it on benchmarks

What papers say

Verbatim critique sentences, each from a paper that cites MCTS as a baseline.

the MCTS process is time-consuming and computationally expensive, especially when calculating token-level rewards.

— rePIRL: Learn PRM with Inverse RL for LLM Reasoning

“the search space grows exponentially with trajectory length”

— Distilling Long-CoT Reasoning through Collaborative Step-wise Multi-Teacher Decoding

Beaten on benchmarks

Head-to-head results where a newer method reports beating MCTS. Values are copied from the source paper's tables — verify against the cited paper.

MC-NEST beats MCTS
13.3 vs 10.6
Pass@1 · [MathOdyssey - GPT-4o]
MC-NEST: Enhancing Mathematical Reasoning in Large Language Models leveraging a Monte Carlo Self-Refine Tree
rePIRL beats MCTS
41.6 vs 36.1
Math Avg. · [Qwen3-4B-Base Math]
rePIRL: Learn PRM with Inverse RL for LLM Reasoning

What to use instead

Recent methods in the same sub-problem, not yet superseded in the knowledge base — arXiv benchmark leaders, not vetted production recommendations.

rePIRLrePIRL: Learn PRM with Inverse RL for LLM Reasoning
May 19, 2026
CoRDDistilling Long-CoT Reasoning through Collaborative Step-wise Multi-Teacher Decoding
May 4, 2026