SaaSBench (Engineering): leaderboard

SaaSBench (Ren et al., 2026) tests long-horizon software engineering on 30 open-source SaaS categories in six domains. Coding agents build and deploy an enterprise SaaS application from scratch from a product requirements document of about 4,400 lines in a Docker workspace, then a dependency-aware graph of HTTP, database, container, browser and rubric checks scores it. Mean task score in percent over the 30 tasks, one rollout each, with each backbone run as a separate OpenHands or Claude Code row; higher is better.

Metric: Task score (%; pass@1, one rollout per task: mean over the 30 tasks of the share of each task's validation-DAG max score earned, with deterministic HTTP, database, container and browser checks plus Claude Sonnet 4.5 rubric nodes; the agent builds and deploys an enterprise SaaS system from a PRD in a Docker workspace, 10,800 s budget). Source: arxiv.org. Saturation forecast: Around 2029. 16 models tracked.

Top models

#ModelScoreOverall rank
1Claude Opus 4.720.68#75
2GLM-5.113.6#175
3DeepSeek V4 Pro13.19#181
4GPT-5.4 (xHigh)10.62#121 (GPT-5.4)
5Gemini 3.1 Pro (Preview)10.12#91
6Kimi K2.69.7#173
7MiniMax-M2.79.26#519
8Qwen 3.6 Plus5.95#217

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

Interactive version: theaggregate.ai/benchmark?slug=saasbench-engineering · How It Works · Data refreshed daily, snapshot 2026-11-12.