AARRI-Bench (Claude Code): leaderboard
AARRI-Bench (Act As a Real Research Intern, 2026) is a set of 82 hand-crafted AI-research tasks graded by unit tests, testing whether an agent harness and model behave like a careful human researcher. The board is the percentage of tasks solved in full, every unit test passing, with the Claude Code harness; higher is better.
Metric: Task success rate (%) under the 0/1 reward (a task counts only when every one of its unit tests passes) over the 82 hand-crafted AI-research-intern tasks in four scenario categories; Harbor containerized runs, Claude Code agent harness; a configuration's tasks without a valid run are left out of its denominator; higher is better. Source: arxiv.org. Saturation forecast: Around May 2027. 6 models tracked.
Top models
| # | Model | Score | Overall rank |
|---|---|---|---|
| 1 | Claude Opus 4.7 | 62.2 | #79 |
| 2 | Qwen 3.6 Plus | 56.3 | #222 |
| 3 | MiniMax-M2.7 | 56.1 | #518 |
| 4 | GPT-5.3 Codex | 53.1 | #116 |
| 5 | Claude Sonnet 4.6 | 52.4 | #161 |
| 6 | Kimi K2.6 | 51.3 | #178 |
No result here: #1 Claude Fable 5.2, #2 Gemini 4 Carbon, #5 Claude Opus 5.5.
Interactive version: theaggregate.ai/benchmark?slug=aarri-bench-claude-code · How It Works · Data refreshed daily, snapshot 2026-11-13.