Benchmark Almanac

InferenceEval

Grok 4.6 46.9% Only in system cards

Agents land real production changes in the xAI inference stack. Hidden GPU unit tests and integration probes grade each patch.

In-house xAI evaluation, first reported in the Grok 4.6 card.

Made by xAI (SpaceXAI) Released Aug 2026 Labs' internal R&D tests Tasks kept private Last in a system card Aug 2026 Last model added Aug 2026
Level
Expert Specialists with years of training, often over hours of work
Scored
Checked automatically A program checks the result against an answer key, unit tests or the expected final state.
Answers
Code A program or patch run against tests.
1
Model scored in lab cards
1
System card reports it, from 1 lab

Grok 4.6 leads with 46.9%

Best score per model as labs report them in their own cards. Labs pick their own settings, so these compare less cleanly than independent runs.

  1. 1 Grok 4.6 46.9%
#ModelScoreSettingDateSource
1 Grok 4.6 46.9% Aug 2026 Model card

Scores over time

All the scores we have, one dot each, so a model tested at several settings appears more than once.

Reported by the lab in its model card
0% 20% 40% 60% 80% 100% Near the ceiling (85%) Grok 4.6 0% 20% 40% 60% 80% 100% Near the ceiling (85%) Grok 4.6

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
12 Aug 2026 Grok 4.6 model card 46.9 InferenceEval, accuracy, high, Grok Build harness (5.2) AI R&D risk

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