Benchmark Almanac

Llama verbatim memorization probe (Meta)

Only in system cards

Models get prompts sampled from their pretraining data. The score is the share of generations that reproduce the true continuation verbatim.

In-house Meta measurement on pretrained models, reported for several prompt and continuation lengths.

Made by Meta Released Jul 2024 Refusing harmful requests Tasks kept private Last in a system card Nov 2024 Last model added Nov 2024
Scored
Checked automatically A program checks the result against an answer key, unit tests or the expected final state.
Answers
Short answer A number, word or short string matched to a key.
3
System cards report it, from 1 lab

No scores here yet

No lab, leaderboard or Epoch AI run has reported a score for Llama verbatim memorization probe (Meta) 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.

3 system cards report it, from 1 lab

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
23 Nov 2024 Llama 3.1-8B technical report Average verbatim memorization, pretrained, three scenarios with no overall (Table 24): English 50-gram 0.26%, All 50-gram 0.24%, All 1000-gram 1.11% Safety
23 Nov 2024 Llama 3.1-70B technical report Average verbatim memorization, pretrained, three scenarios with no overall (Table 24): English 50-gram 0.60%, All 50-gram 0.55%, All 1000-gram 3.56% Safety
23 Nov 2024 Llama 3.1-405B technical report Average verbatim memorization, pretrained, three scenarios with no overall (Table 24): English 50-gram 1.13%, All 50-gram 1.03%, All 1000-gram 3.91% Safety

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