PhageBench - Contamination Detection: leaderboard

Metric: Accuracy (%) on 1,200 two-option items deciding whether a phage contig carries host-derived sequence, each a raw-nucleotide multiple-choice question with shuffled options, zero-shot chain-of-thought prompting (reasoning models at reasoning effort medium with at most 2,048 reasoning tokens); higher is better. Source: arxiv.org. Saturation forecast: Around 2029. 8 models tracked.

Top models

#ModelScore
1Gemini 3 Flash (Medium)58.83
2GPT-5.2 (Medium)54.17
3Qwen 3 Max (Thinking)52.58
4Claude Sonnet 4.5 (Thinking)51.83
5GPT-4o Mini50.08
6GPT-OSS-120B46.58

Interactive version: theaggregate.ai/benchmark?slug=phagebench-contamination-detection · How It Works · Data refreshed daily, snapshot 2026-10-07.