Claim · 2026-04-07 · publication · Stated in source · Supported

Grok 4.20 System Card states what the model-card question “Red-teaming” asks.

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

Grok 4.20 System Card → states provision → Red-teaming

Where it appears

Model cards compared →

Claim and evidence

Grok 4.20 System Cardstates provision ↓Red-teaming

Machine-checkedStated in sourceSupported

Supporting evidence: primary · 1 source

Provision: Model-card question · provision ID model-card-q12
Subject version: As dated April 7, 2026 under its title · Published 2026-04-07 · Effective date not established
Date: 2026-04-07 · publication Records dated 2026 →

Scope and limitsThe card reports third-party red-teaming of an early checkpoint, scoped to the refusal boundary and catastrophic risk. What the card states, quoted from the expression read. A card is the developer’s own account: not evidence that an evaluation was run as described, that a safeguard works, or that a finding is independent.

The evidence 01

primary sourceSupports the claim

Grok 4.20 System Card

xAI · 2026-04-07

Cite the original source

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

Source excerpt

“testing, including coverage testing and red-teaming of the refusal boundary. Testing included a variety of domains, with a focus on catastrophic risk.”

Location in source §2.2 Evaluations > Third-party assessment, PDF p. 2

How it was read Retrieved directly from the publisher

Machine-checked · 2026-11-05

Source details and check notes

Authors: xAI
Version: Retrieved for the candidate pack on 2026-11-05 (SHA-256 ea72c27a6b04949d07c828b1dc5971688a79a780e5727eeca1985434d3262760) directly from the publisher’s host. Retrieved again on 2026-11-05, after the adjudication, with the same SHA-256; the cross-family check of 2026-11-05 retrieved the same SHA-256.
Canonical address: Open the canonical source ↗
Accessed: 2026-11-05
Language: English (en)
Attribution: xAI, “Grok 4.20 System Card”, 2026-04-07.
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, model cards compared (research/model-cards-3). The quotation (22 words) matched the card’s text retrieved for the candidate pack on 2026-11-05 (SHA-256 ea72c27a6b04949d07c828b1dc5971688a79a780e5727eeca1985434d3262760) and again on 2026-11-05, after the adjudication, in a fresh retrieval with the same SHA-256. Matching ignored differences of whitespace, case, quotation marks, dashes, PDF line-break hyphens and Unicode compatibility forms, so the source’s typography can differ. A cross-family machine check (2026-11-05, item 60) checked this passage’s cell and agreed with the pack. The pack was prepared by a model of the GPT family (Codex) and checked by a Claude model. No human editorial review.

Status and meaning

Editorial status. Machine-checked. Machines found this record and checked it against its sources; no person accepted it individually. Each evidence record above shows how it was checked.

Relation. An exact framework edition, or another document with an exact expression, states one provision: a capability threshold or risk level and its trigger, a required safeguard or action, a decision authority (who decides, recommends, can overrule or is informed), a stated exception, or another statement of its content, such as a licence term or a prospectus statement. The passage records what the document says, not implementation, compliance or effectiveness. Provisions with the same key align across editions of one family.

Date. Dated as the card read is dated: its printed date, as the source records it.

Record ID mc-cell-xai-grok-4-20-q12