HAS-Bench - Coding: leaderboard

HAS-Bench (2026) tests LLM agents that work with simulated human participants who hold task information, constraints or authority. This board is Pass@1 in percent on the 115 coding tasks (adapted from MultiAgentBench) under Equal Partnership (A3), where the agent may ask a GPT-4.1-simulated human for clarification, feedback and control; a task passes only when every task dimension passes, and higher is better.

Metric: Pass@1 (%; share of the 115 coding tasks in which every task dimension passes) under Equal Partnership (A3) human participation: the agent may ask a GPT-4.1-simulated human for clarification, feedback and control, temperature 0, one rollout per task; GPT-4.1 judge; higher is better. Source: arxiv.org. Saturation forecast: Estimated already saturated. 5 models tracked.

Top models

#ModelScoreOverall rank
1GPT-4.152.2#495
2Claude Sonnet 452.2#400
3GPT-4.1 Mini44.3#779
4DeepSeek V3 (0324)28.7#709
5Llama 3.1 8B1.7#4861

No result here: #1 Claude Fable 5.2, #2 Gemini 4 Carbon, #5 Claude Opus 5.5.

Interactive version: theaggregate.ai/benchmark?slug=has-bench-coding · How It Works · Data refreshed daily, snapshot 2026-11-13.