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Model release · curated entry

xAI releases Grok 4 around maths and reasoning

Grok 4

Date
July 9, 2025
Category
Model release
Organization / Model
xAI
Evidence
1 source · 1 evidence family

Grok 4 leads on mathematics, reasoning and live information, and plugs into multi-agent workflows. It is xAI's core product in frontier competition.

Curator's note: Cross-checked against xAI's official announcement page.

Curated sources · 1

  1. Official announcement · xAI2025-07-09

    Grok 4

    x.ai

Cite this page

This page is a curated static snapshot and can be cited directly. Preferred format GB/T 7714—2025 (electronic resource [EB/OL]); the other 5 styles open below, together with the machine-readable files.

GB/T 7714—2025 (electronic resource [EB/OL])

AI 纪年. xAI 发布 Grok 4,主打数学与推理[EB/OL]. (2025-07-09)[2026-11-03]. https://aihist.net/e/grok-4-2025.html.

APA 7 · American Psychological Association

AI 纪年. (2025, July 9). xAI 发布 Grok 4,主打数学与推理 [Web page]. https://aihist.net/e/grok-4-2025.html

MLA 9 · Modern Language Association

"xAI 发布 Grok 4,主打数学与推理." AI 纪年, 9 July 2025, aihist.net/e/grok-4-2025.html. Accessed 3 Nov. 2026.

Chicago 17 · notes-bibliography

AI 纪年. "xAI 发布 Grok 4,主打数学与推理." Published July 9, 2025. Accessed Nov. 3, 2026. https://aihist.net/e/grok-4-2025.html.

IEEE · citation-reference list

"xAI 发布 Grok 4,主打数学与推理," AI 纪年, 9 July 2025. [Online]. Available: https://aihist.net/e/grok-4-2025.html. [Accessed: 3 Nov. 2026].

ACM · author-date variant

AI 纪年. July 9, 2025. xAI 发布 Grok 4,主打数学与推理. Retrieved November 3, 2026 from https://aihist.net/e/grok-4-2025.html.

All six styles come from one template and can be compared word for word. [引用日期], Accessed, urldate and Y2 all carry this page's build date, 2026-11-03 — a static page is an immutable snapshot, so substitute the date you actually consulted it. The address in every style is the archive's canonical page: this English page translates the same snapshot, and the work keeps its name, so one record cites both. For one-click copying use the same entry in the timeline, which takes the day you opened it. Expand the other styles before printing.