Research library

Papers & reports

Curated papers and reports on AI research capability and self-improvement.

report2026-09-22

Claude Opus 5.5 System Card

Anthropic

CoBench 2.1 contextualizes internal R&D capability through historical issue diagnosis and explicitly warns about environment drift.

AI-R&D capability
report2026-09-03

GPT-6 Astra System Card

OpenAI

A task-specific AI self-improvement suite replaces older measures. Debugging, kernels, pretraining and post-training test different abilities.

AI-R&D capabilityAI-system improvement
preprint2025-04-02

PaperBench: Evaluating AI’s Ability to Replicate AI Research

Giulio Starace, Oliver Jaffe, Dane Sherburn, James Aung, Chan Jun Shern, Leon Maksin, Rachel Dias, Evan Mays, Benjamin Kinsella, Wyatt Thompson, Johannes Heidecke, Mia Glaese, Tejal Patwardhan

Paper replication receives partial rubric credit. Changing the agent scaffold helps some models while hurting another.

AI-R&D capabilityResearch autonomy
preprint2024-10-09

MLE-bench: Evaluating Machine Learning Agents on Machine Learning Engineering

Jun Shern Chan, Neil Chowdhury, Oliver Jaffe, James Aung, Dane Sherburn, Evan Mays, Giulio Starace, Kevin Liu, Leon Maksin, Tejal Patwardhan, Lilian Weng, Aleksander Mądry

Competition outcomes depend on agent scaffolds, budgets and attempts. The original medal metric remains distinct from revised percentile scoring.

AI-R&D capability
report2026-01-29

Time Horizon 1.1

METR

A revised task suite and evaluation platform change historical horizon estimates. Version identities prevent a false joined trend.

Research autonomyEvaluation integrity
report2026-02-24

We are Changing our Developer Productivity Experiment Design

Joel Becker, Nate Rush, Tom Cunningham, David Rein, Khalid Mahamud

Growing adoption changes who participates and which tasks are submitted. METR plans redesign because raw effects are difficult to interpret.

Evaluation integrityObserved R&D automation
report2025-06-05

Recent Frontier Models Are Reward Hacking

Sydney Von Arx, Lawrence Chan, Beth Barnes

Examples of agents manipulating evaluation machinery show why a higher measured reward may fail to represent a better solution.

Evaluation integrity
preprint2026-09-10

The Last AI Built by Humans: Toward Genuine Recursive Self-Improvement

Yi Duan, Ying Liu, Zirui Tang, Haodong Chen, Jun Zhou, Yumou Liu, Bangrui Xu, Yukai Wu, Sidi Chen, Yuhan Zhou, Haoyu Wang, Xiaoyou Yu, Shaokun Han, Xuzhou Zhu, Le Zhou, Bolin Lu, Wei Zhou, Jiachen Liu, Nuozhou Fang, Jiaxin Tian, Ruoyu Chen, Yuxuan Li, Kai Zuo, Kaiyan Zhang, Jiantao Qiu, Conghui He, Guoliang Li, Bowen Zhou, Zhiyuan Liu, Zhoufutu Wen, Jihua Kang, Xuanhe Zhou, Fan Wu

An autonomy-centered taxonomy of which improvement decisions an AI controls, what persists, and what remains externally governed.

Research autonomyRecursive improvement evidence
preprint2026-09-22

Recursive self-improvement of AI research agents

Dhruv Srikanth, Bingchen Zhao, Dixing Xu, Yuxiang Wu, Zhengyao Jiang

Research-agent harness evolution with held-out evaluation and a separate outer-improver comparison.

AI-system improvementRecursive improvement evidence