FLOWSTEP Abstracted Calibration Zero-Shot - BLEU-4: leaderboard

FLOWSTEP v1 evaluates next-step prediction for GitHub Actions. It uses a repository-level 8:1:1 split and 13630 full test steps. Abs and Raw are distinct abstraction conditions. Generation uses temperature 0 and one candidate; calibrated script-model selection uses 1000 random test Script instances. The full pipeline combines RoBERTa type/action heads with Sonnet 4.5 one-shot prompting or a trained T5-small; the weights are trained on distinct task sets. Judge validation uses 350 incorrect scripts, 2 human annotators, and 3 ordinal functional classes. Signed agreement and correlation measure judgment quality, not generation accuracy. The unchanged T5/GH-WCOM one-shot reference rows are included only once, in the zero-shot population. Metric: BLEU-4 (%).

Metric: BLEU-4 (%). Source: arxiv.org. Saturation forecast: Rough model projection: around 2026. 7 models tracked.

Top models

#ModelScoreOverall rank
1FLOWSTEP Abstracted Claude-Sonnet-4.5 Zero-Shot31.03
2FLOWSTEP Abstracted Claude-Haiku-4.5 Zero-Shot29.4
3FLOWSTEP Abstracted DeepSeek-V3.2-Exp Zero-Shot29.23
4FLOWSTEP Abstracted GPT-4.1 Zero-Shot23.7
5FLOWSTEP Abstracted GPT-3.5-turbo Zero-Shot13
6FLOWSTEP Abstracted GH-WCOM trained baseline11.22
7FLOWSTEP Abstracted T5-small trained baseline11.1

Interactive version: theaggregate.ai/benchmark?slug=flowstep-abstracted-calibration-zero-shot-bleu-4 · How It Works · Data refreshed daily, snapshot 2026-10-28.