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
Kind
Hallucination rates
Level
Expert
Scored
Graded by a model
Answers
Agent task
Tasks
Kept private
Last in a system card
October 2026
Last model added
October 2026
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 522 launch posts from 52 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
Oct 13, 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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