The Definitive Guide toAI Data Centers
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Meta reports above 90% effective training time in the named Llama 3 training campaign

>90%observed

Value kindobserved — Reported measurements, counts, and specifications keep the precision and scope stated by their source; an exact specification is not treated as a range.
ScopeNamed campaign observation, not a Google result or a portable acceptance target; interruption, maintenance and recovery conditions belong to that campaign.
As of2024-07
SourceMeta, The Llama 3 Herd of Models, §3.3.4, July 2024. · Reliability and Operational Challenges: effective training time is useful training time divided by elapsed time.
Reviewchecking…review by 2026-09-10 · standard cadence
Recorded changeslast 2026-08-24 · 2 revisions tracked
Claim idgoodput-effective-training-time-achievable

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