Claim · 2024-11-19 · publication · Stated in source · Supported

NIST states that US AISI and UK AISI conducted a joint pre-deployment evaluation of Anthropic's upgraded Claude 3.5 Sonnet, with biological capabilities among the four domains tested, and that the findings were shared with Anthropic before public release.

One recorded claim. The claim panel gives its qualification, the source passages with their place in each source, and how it was checked.

What it connects

→ documented evaluation engagement with → Anthropic

Where it appears

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Claim and evidence

documented evaluation engagement with ↓Anthropic

Machine-checked, not reviewed by an editorStated in sourceSupported

Supporting evidence: primary · 1 source

Date: 2024-11-19 · publication
Activity stage: reported performed
Evaluated system: The upgraded Claude 3.5 Sonnet released on 22 October 2024
Activity scope: Joint pre-deployment evaluation of the upgraded Claude 3.5 Sonnet across biological capabilities, cyber capabilities, software and AI development, and safeguard efficacy

Scope and limitsReported performed work, documented by the evaluating body. It does not establish the depth of the testing or that the developer acted on the findings. The dataset already records the publication of the summary and the institute's agreement with Anthropic; this record adds the biological domain and the reported performance.

The evidence 01

primary sourceSupports the claim

Pre-Deployment Evaluation of Anthropic’s Upgraded Claude 3.5 Sonnet (November 19, 2024)

National Institute of Standards and Technology · 2024-11-19

Archived copy, captured 2024-11-19: Pre-Deployment Evaluation of Anthropic’s Upgraded Claude 3.5 Sonnet (November 19, 2024)

Cite the original source

Cite the original document, not Selekoa. Check these details against it.

Source excerpt

“conducted a joint pre-deployment evaluation of Anthropic's latest model – the upgraded Claude 3.5 Sonnet (released October 22, 2024).”

Location in source Introduction and 'Overview of the Joint Safety Research & Testing Exercise'

How it was read Retrieved directly from the publisher

Machine-checked · 2026-10-30

Source details and check notes

Authors: National Institute of Standards and Technology (U.S. AI Safety Institute)
Version: Retrieved on 2026-10-27 (SHA-256 1b9a64eb9d1953bdd916767279b7021cabc79fc837018b2f75fc3ccf2c8f983a). The cross-family check of 2026-10-28 opened the Internet Archive capture linked here and matched the quoted wording in it, the release-period expression (decision 9); a capture shows only what the archive retrieved that day.
Canonical address: Open the canonical source ↗
Accessed: 2026-10-27
Language: English (en)
Archive copy: Open archived copy, captured 2024-11-19: Pre-Deployment Evaluation of Anthropic’s Upgraded Claude 3.5 Sonnet (November 19, 2024). Captured on the recorded publication date. An archive copy shows only what the archive retrieved on 2024-11-19. It does not prove what the page said earlier, and it can differ from the copy checked on 2026-10-27.
Attribution: National Institute of Standards and Technology (U.S. AI Safety Institute), “Pre-Deployment Evaluation of Anthropic’s Upgraded Claude 3.5 Sonnet (November 19, 2024)”, 2024-11-19.
Reuse: No open redistribution licence asserted. Bibliographic metadata, editorial paraphrases and short attributed quotations (at most 50 words each). Recheck terms before wider redistribution.
Check notes: Candidate pack passage, AI and biosecurity (research/ai-bio). The quotation (18 words) matched the text retrieved for the candidate pack on 2026-10-28 and again at admission on 2026-10-30, in a fresh retrieval (SHA-256 8e9a0960ed43d37fa5d161337886069510323506e77889b1301eb294c16e4b90; the bytes differ from the pack’s retrieval). Matching ignored differences of whitespace, case, quotation marks, dashes and Unicode compatibility forms, so the source’s typography can differ. The overview adds that the findings were shared with Anthropic before the model was publicly released and that the four domains tested included biological capabilities. No human editorial review.

Status and meaning

Editorial status. Not reviewed by an editor. An exploratory record that no editor has accepted. This status does not say whether a person has read any linked passage. Each evidence record above shows how it was checked.

Relation. An evaluator’s explicitly documented, system-specific engagement with a developer. Proposed, announced and reported performed work are distinct activity stages. Reported performance does not independently verify execution, effectiveness or certification.

Date. Dated by the publication of the summary; the testing is described as taking place during a limited period of pre-deployment access, which is not dated. The expression checked is the copy served on 2026-10-28, whose footer reads 'Released November 19, 2024, Updated March 20, 2025'; what the page was changed in on that date is not stated, and the record keeps the release date, not the update date.

Record ID ab-ev-usaisi-anthropic-claude35-engagement