Benchmark Almanac

NYU CTF Bench

Claude 3.5 Sonnet 22% leads since June 2024
Not in model cards

Agents solve 200 capture the flag challenges from seven years of CSAW competitions. Six categories cover crypto, forensics, pwn, reverse, web and misc. Each runs in Docker.

NeurIPS 2024 Datasets and Benchmarks track. Selected from 528 CSAW challenges over a decade. Earlier arXiv versions used the name NYU CTF Dataset. Used beside Cybench and InterCode-CTF in later work.

Released
June 2024
Kind
Capture-the-flag challenges
Level
University
Scored
Checked automatically
Answers
Agent task
Tasks
All public
Strongest model tested
Claude 3.7 Sonnet #118 on the capability index
Last model added
April 2025
Scores refreshed
November 12th, 2026

In the authors’ words

Large Language Models (LLMs) are being deployed across various domains today. However, their capacity to solve Capture the Flag (CTF) challenges in cybersecurity has not been thoroughly evaluated. To address this, we develop a novel method to assess LLMs in solving CTF challenges by creating a scalable, open-source benchmark database specifically designed for these applications. This database includes metadata for LLM testing and adaptive learning, compiling a diverse range of CTF challenges from popular competitions. Utilizing the advanced function calling capabilities of LLMs, we build a fully automated system with an enhanced workflow and support for external tool calls. Our benchmark dataset and automated framework allow us to evaluate the performance of five LLMs, encompassing both black-box and open-source models. This work lays the foundation for future research into improving the efficiency of LLMs in interactive cybersecurity tasks and automated task planning. By providing a specialized benchmark, our project offers an ideal platform for developing, testing, and refining LLM-based approaches to vulnerability detection and resolution. Evaluating LLMs on these challenges and comparing with human performance yields insights into their potential for AI-driven cybersecurity solutions to perform real-world threat management. We make our benchmark dataset open source to public https://github.com/NYU-LLM-CTF/NYU_CTF_Bench along with our playground automated framework https://github.com/NYU-LLM-CTF/llm_ctf_automation.

Abstract of NYU CTF Bench: A Scalable Open-Source Benchmark Dataset for Evaluating LLMs in Offensive Security (arXiv:2406.05590, CC0)
8
Entries on its own leaderboard, 7 models we track

Claude 3.5 Sonnet leads with 22% among models released by April 2025

Best score per entry from the benchmark's own leaderboard, read on November 12th, 2026. Where a model ran with several settings or harnesses, we keep its best. Names in gray aren't in our model list: fine-tunes, agent systems, products and older models. They don't count toward leaders.

The newest model with a score here came out in April 2025, and nobody has tested a newer one. Among the 20 highest-ranked models on the capability index, these have no score yet:

  1. 1 Claude 3.5 Sonnet pass@1 22%
  2. 2 Claude 3.7 Sonnet pass@1 18.5%
  3. 3 GPT-4.1 pass@1 13.5%
  4. 4 gpt-4o (snapshot unspecified) pass@1 11.5%
  5. 5 GPT-4 Turbo Nov 2023, pass@1 7.00%
  6. 6 GPT-4 Turbo (Jan 2024) pass@5 5.00%
  7. 7 GPT-3.5 Turbo Nov 2023, pass@5 4.00%
  8. 8 Claude 3 Haiku pass@5 4.00%

Source: Official NYU CTF Bench leaderboard

#EntryScoreSettingDateSource
1 Claude 3.5 Sonnet 22% pass@1, CRAKEN (Self-RAG + Graph-RAG) Jun 2024 Official leaderboard
2 Claude 3.7 Sonnet 18.5% pass@1, CRAKEN (Self-RAG) Feb 2025 Official leaderboard
3 GPT-4.1 13.5% pass@1, D-CIPHER Apr 2025 Official leaderboard
4 gpt-4o (snapshot unspecified) 11.5% pass@1, CRAKEN (Self-RAG) Aug 2025 Official leaderboard
5 GPT-4 Turbo Nov 2023 7.00% pass@1, EnIGMA Nov 2023 Official leaderboard
6 GPT-4 Turbo (Jan 2024) 5.00% pass@5, NYU CTF Baseline Jan 2024 Official leaderboard
7 GPT-3.5 Turbo Nov 2023 4.00% pass@5, NYU CTF Baseline Nov 2023 Official leaderboard
8 Claude 3 Haiku 4.00% pass@5, NYU CTF Baseline Mar 2024 Official leaderboard

2 models have held number one on the official leaderboard since its release in June 2024

Lab claims count from the day the card came out, independent runs from the model’s release.

OpenAI Anthropic
Own leaderboard Not tested since Apr 2025

Source: Official NYU CTF Bench leaderboard

Scores over time

All the scores we have, one dot each, so a model tested at several settings appears more than once.

On the benchmark’s own leaderboard Best so far
0% 20% 40% 60% 80% 100% 2024 2025 Near the ceiling (85%) Claude 3.5 Sonnet GPT-4 Turbo 0% 20% 40% 60% 80% 100% 2024 2025 Near the ceiling (85%) Claude 3.5 Sonnet GPT-4 Turbo

Source: Official NYU CTF Bench leaderboard

No lab model card reports it yet

We read the headline results of 522 launch posts from 52 labs, and none of them list this benchmark.

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