FDE-Bench - Repair: leaderboard

The 70 repair tasks of FDE-Bench (Ding et al., 2026), where the agent diagnoses and fixes a deliberately broken deployment configuration built by mutating a validated reference. Agents share one four-tool scaffold; submitted Dockerfiles, manifests and monitoring configuration are rebuilt and redeployed in a clean sandbox and pass only if the build, readiness, behavior and specification-conformance check layers all pass, with no LLM judge. Resolved rate in percent; higher is better.

Metric: Resolved rate (%; the 70 repair tasks, which start from a deliberately broken deployment configuration; one episode per task, same four-tool scaffold (bash, write_file, read_file, submit), task-specific step, time and token caps; submitted artifacts are rebuilt and redeployed in a pristine sandbox and graded by four gated programmatic check layers (build, readiness, behavior, spec conformance); resolved only if all four pass). Source: arxiv.org. Saturation forecast: Around February 2027. 7 models tracked.

Top models

#ModelScoreOverall rank
1DeepSeek V4 Pro88.6#181
2DeepSeek V4 Flash88.6#254
3Gemini 3.6 Flash87.1#72
4Claude Sonnet 5 (High)87.1#108 (Claude Sonnet 5)
5GPT-5.6 Terra80#60
6GPT-5.6 Luna74.3#117
7Gemini 3.5 Flash Lite68.6#300

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

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