Benchmark Almanac

SWE agentic fabrication eval

Only in system cards

A grounding autorater checks whether claims made by coding agents on long SWE tasks are supported by tool outputs.

In-house Google DeepMind evaluation. The tasks are not public.

Made by Google DeepMind Hallucination rates Tasks kept private Last in a system card Oct 2026 Last model added Oct 2026
Level
Expert Specialists with years of training, often over hours of work
Scored
Graded by a model A language model scores each response, usually against a rubric.
Answers
Agent task Many steps in a terminal, browser, desktop, app, game or robot.
1
System card reports it, from 1 lab

No scores here yet

No lab, leaderboard or Epoch AI run has reported a score for SWE agentic fabrication eval yet.

Labs report it only in system cards

We read the headline results of 479 launch posts from 51 labs, and none of them list this benchmark. Some system cards do, below.

One system card reports it

Besides launch posts, we read the system cards, model cards and technical reports labs publish with a release. They report far more, including safety and frontier-risk tests.

DateDocumentScoreAs the document writes itSection
13 Oct 2026 Gemini 4 Argon system card SWE agentic fabrication, two sets with no overall: build new system binary fabrication 6.5%, common internal tasks severe fabrication 2.1% (Figure 5.9) Hallucination

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