Grok 4.20 System Card
xAI's system card for Grok 4.20, dated April 7, 2026.
- Issued by
- xAI
- Authors credited
- No authorship claim recorded yet. The source record lists xAI.
- Dates
- Published 2026-04-07 issue evidence
The date printed under the title, day precision. No revision date is printed in the copy read.
- Exact source
- Grok 4.20 System Card xAI · published 2026-04-07 · 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.
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Versions
xai-grok-4-20-system-card: 1 recorded version, oldest first, published by xAI. A version is shown as replacing another only where a record says so. Date order alone never implies it.
- 2026-04-07 · publishedAs dated April 7, 2026 under its title (this version)
This version
Provisions in this version · 13 quoted · 3 not found
A limited selection of quoted provisions: what this edition says about thresholds, required actions, who decides and exceptions, and other statements of the text. It is not a full summary and says nothing about implementation. A “not found” record states which part of the edition was inspected. It is not a claim that the text was deleted.
- Model-card questionCard date“April 7, 2026”Title and date, PDF p. 1Inspect claim & evidence ↗
- Model-card questionRelease date“As of writing, Grok 4.20 is publicly available through our consumer web and mobile apps.”§1.3 Release process, PDF p. 2Inspect claim & evidence ↗
- Model-card questionFramework cited“our Frontier Artificial Intelligence Framework (FAIF) [xAI, 2025]”§1 Introduction, PDF p. 1Inspect claim & evidence ↗
- Model-card questionLink to framework“xAI. xai risk management framework, 2025.”Bibliography, PDF p. 8Inspect claim & evidence ↗
- Model-card questionFramework determination“We release Grok 4.20 with safeguards appropriate for its capability threshold, such as refusal training.”§1.3 Release process, PDF p. 2Inspect claim & evidence ↗
- Model-card questionSafeguards tied to determination“We release Grok 4.20 with safeguards appropriate for its capability threshold, such as refusal training.”§1.3 Release process, PDF p. 2Inspect claim & evidence ↗
- Model-card questionChemical and biological“We assess Grok 4.20’s dual-use capabilities, i.e., its ability to enable harm.”§4 Dual-Use Capability Assessment, PDF p. 5Inspect claim & evidence ↗
- Model-card questionCyber“we do not believe that it substantially increases cybersecurity risk.”§4.2.2 Results, PDF p. 6Inspect claim & evidence ↗
- Model-card questionPersuasion“we do not believe that it poses significant risks due to advanced persuasion capabilities.”§4.3.2 Results, PDF p. 7Inspect claim & evidence ↗
- Model-card questionAlignment and deception“Grok 4.20 occasionally acts against operator interests when given extensive affordances and confronted with evidence of egregious harm”§3.3 Results, PDF p. 5Inspect claim & evidence ↗
- Model-card questionRed-teaming“testing, including coverage testing and red-teaming of the refusal boundary. Testing included a variety of domains, with a focus on catastrophic risk.”§2.2 Evaluations > Third-party assessment, PDF p. 2Inspect claim & evidence ↗
- Model-card questionExternal testers“we provided third-party evaluators access to an early snapshot of Grok 4.20 for testing of our refusal policy.”§1.3 Release process, PDF p. 2Inspect claim & evidence ↗
- Model-card questionStated limits“However, this does not rule out unverbalized awareness.”§3.3 Results, PDF p. 5Inspect claim & evidence ↗
- Not found in the inspected textAutonomy and AI R&DInspected: Grok 4.20 System Card: Whole card, particularly §§3.2–3.3 and §4Inspect claim & evidence ↗
- Not found in the inspected textGovernment instituteInspected: Grok 4.20 System Card: Whole card, including release process, third-party assessment, alignment audit and bibliographyInspect claim & evidence ↗
- Not found in the inspected textRelease decisionInspected: Grok 4.20 System Card: Whole card, especially §1.3 Release process and §§4.1–4.3 resultsInspect claim & evidence ↗
Earliest version recorded here; no replacement is recorded.
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