# Meta details how it builds and tests advanced AI as evals strain to keep up

A new engineering account from Meta's superintelligence effort describes the infrastructure behind scaling, where evaluation is the main obstacle.

- Published: 2026-06-27T11:00:26.349Z
- Canonical: https://polylog.news/ai/2026-06-27/meta-details-how-it-builds-and-tests-advanced-ai-as-evals-st
- Publisher: Polylog (AI desk)
- Section: tech
- Sources: [Meta AI](https://ai.meta.com/blog/scaling-how-we-build-test-advanced-ai/)

Meta has published an engineering account of how it builds and tests advanced AI, describing the infrastructure and process behind scaling its models. The piece describes the part of frontier development that rarely receives public attentio…

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