PLE Dev - structural - pi: leaderboard

PLE evaluates agents on its separate 29-task development set from professional engineering work. Results distinguish the agent tools and engineering discipline. Mean task reward (0–1).

Metric: Mean task reward (0–1). Source: ple-bench.com. Saturation forecast: Around November 2027. 17 models tracked.

Top models

#ModelScoreOverall rank
1Claude Sonnet 5.50.33#12
2Claude Opus 5.50.31#3
3Claude Opus 50.3#15
4Claude Fable 50.29#19
5Gemini 4 Argon0.26#9
6Grok 4.70.24#27
7Gemini 3.8 Flash0.21#25
8GLM-5.20.17#77
9DeepSeek V4.1 Flash0.11#38
10Gemini 3.1 Pro (Preview)0.07#61
11Qwen 3 Coder 480B A35B0.04#279
12GPT-OSS-120B0.04#341
13Kimi K2 (Thinking)0.02#246 (Kimi K2)
14MiniMax-M20.01#322
15Llama 4 Maverick0.01#477

No result here: #5 GPT-6 Astra, #7 GPT-6.1 Sol, #10 Claude Fable 5.1.

Interactive version: theaggregate.ai/benchmark?slug=ple-dev-structural-pi · How It Works · Data refreshed daily, snapshot 2026-10-29.