PaperBench

PaperBench is a benchmark for evaluating AI agents on their ability to replicate research papers. It tests models on complex, multi-step workflows involving code implementation, experimentation, and reproducing scientific results from academic publications.

Kimi K2.5 from Moonshot AI currently leads the PaperBench leaderboard with a score of 0.635 across 2 evaluated AI models.

About this benchmark

What PaperBench measures

PaperBench is a text benchmark that evaluates large language models on reasoning, agents, and code tasks. LLM Stats tracks 2 models on this benchmark, with a maximum possible score of 1. Current average across reported models is 0.6, with the leader reaching 0.6.

Compare leaders on the best AI for reasoning, best AI for agents and best AI for code leaderboards.

Moonshot AIKimi K2.5 leads with 63.5%, followed by MiniMaxMiniMax M3 at 52.6%.

Progress Over Time

Interactive timeline showing model performance evolution on PaperBench

State-of-the-art frontier
Open
Proprietary

PaperBench Leaderboard

2 models
ContextCostLicense
1
Moonshot AI
Moonshot AI
1.0T
2
MiniMax
MiniMax
1.0M$0.60 / $2.40
Notice missing or incorrect data?

FAQ

Common questions about PaperBench.

What is the PaperBench benchmark?

PaperBench is a benchmark for evaluating AI agents on their ability to replicate research papers. It tests models on complex, multi-step workflows involving code implementation, experimentation, and reproducing scientific results from academic publications.

What is the PaperBench leaderboard?

The PaperBench leaderboard ranks 2 AI models based on their performance on this benchmark. Currently, Kimi K2.5 by Moonshot AI leads with a score of 0.635. The average score across all models is 0.581.

What is the highest PaperBench score?

The highest PaperBench score is 0.635, achieved by Kimi K2.5 from Moonshot AI.

How many models are evaluated on PaperBench?

2 models have been evaluated on the PaperBench benchmark, with 0 verified results and 2 self-reported results.

What categories does PaperBench cover?

PaperBench is categorized under reasoning, agents, and code. The benchmark evaluates text models.

What is the best open-source model on PaperBench?

Kimi K2.5 by Moonshot AI is the top-ranked open-source model on PaperBench, with a score of 0.635 (rank #1).

How recent are the PaperBench leaderboard results?

The PaperBench leaderboard was last updated in June 2026 and currently includes 2 evaluated models.

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