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投机取巧 Speculative Speculation

xAI（官方文档页 2026-10 自称 SpaceXSI）xAI (official docs self-brand as SpaceXSI, Oct 2026)　·　闭源谱系卡closed model lineage card　·　当前代current generation Grok 4.7Grok 4.7（2026-08）

Grok（闭源 API）Grok (closed API)闭源模型 · 官方规格快照 · 带复核周期closed model · official spec snapshot · with review cycle

闭源旗舰线（代码与 agentic 向）：官方文档规格直抄。诚实标注：2026-10-20 快照里官方文档页自称 SpaceXSI（Memphis 数据中心口径），品牌归属变化本站不推测、只记录页面原文。A closed flagship line (code and agentic focus): specs copied from official docs. Honest note: in the 2026-10-20 snapshot the official docs self-brand as SpaceXSI (Memphis data-center wording); this site records the page text without speculating on brand changes.

怎么用得到How you can use it：API 与 X 订阅；权重不开源。API and X subscription; weights are not open.

权重不开源，本站无量化对比；X 内产品形态在 AI 导航有站点条目。No open weights, no quantisation coverage; the X product entry lives on the nav site.

中文生态China availability 国产 / 国内可直接用 / 备案状态 · 快照domestic / direct access / CAC filing · snapshot 2026-10-20

  • 出品属地Origin　国外出品foreign-made　出品方为 xAI（美国）；官方文档页 2026-10 自称 SpaceXSI，属地按 xAI 记录。Made by xAI (US); the Oct 2026 docs self-brand as SpaceXSI — origin recorded as xAI.
  • 国内下载Direct access　直连不可达direct blocked　x.ai 大陆直连实测不可达（2026-10-30 复测同口径，S52 探测）；官方服务不面向大陆。x.ai unreachable direct from the mainland (re-measured 2026-10-30, S52 convention); the official service does not serve the mainland.
  • 备案状态CAC filing　未见于备案名单not in filing list：公示名单未检索到 xAI 相关条目（2026-10-20 检索 13 批附件）。No xAI entry found in the public registry (13 batch attachments searched on 2026-10-20).

备案信息以网信办《生成式人工智能服务已备案信息》公示名单为准（按批次滚动更新，本站只抄编号不解读）；「国内可直连」是本站从大陆网络直连实测的结果，不是厂商承诺。Filing status is quoted from the CAC public registry (updated batch by batch; this site copies the number and does not interpret it). "Direct access" is this site's own reachability measurement from a mainland network, not a vendor promise.

  • 网信办《生成式人工智能服务已备案信息》滚动公告页（13 个批次附件 PDF，2026-10-20 全量下载检索）：CAC · filed generative-AI service information (rolling announcement page, 13 batch attachment PDFs, full download & search on 2026-10-20): https://www.cac.gov.cn/2024-04/02/c_1713729983803145.htm

代次Generations 按官方发布/文档页记录as recorded by official releases and docs

  • Grok 4.7Grok 4.72026-08当前代current

    当前旗舰：官方模型页 At a glance 列 500,000 上下文、Text+Image 输入 / Text 输出；页面元数据 datePublished 2026-08-17；官方文档注明「Grok 4.7 的知识截点是 2026 年 5 月」。Current flagship: official model page At a glance lists 500,000 context, Text+Image input / Text output; page metadata datePublished 2026-08-17; official docs state "The knowledge cut-off date of Grok 4.7 is May 2026".

    官方页面 ↗official page ↗
  • Grok 4.5 / 4.6Grok 4.5 / 4.62026

    上一档：grok-4.5 模型页仍在册（At a glance 500,000 上下文）；官方 Models 总览页 4.20 / 4.3 / 4.5 / 4.6 / 4.7 各档并列在册。Previous tier: the grok-4.5 model page is still listed (At a glance 500,000 context); the official Models overview lists 4.20 / 4.3 / 4.5 / 4.6 / 4.7 side by side.

    官方页面 ↗official page ↗
  • Grok 4.x 前代Grok 4.x predecessor2025–2026

    grok-4.20 及更早代在官方文档在册（官方注明 grok-4.20 起不支持 logprobs 字段）。grok-4.20 and earlier listed in official docs (which note logprobs are unsupported from grok-4.20 on).

    官方页面 ↗official page ↗

官方规格事实（每条挂出处）Official spec facts (each with a source) 截至核验日as of the verification date

  • 上下文窗口Context window　500,000 tokens（Grok 4.7 官方模型页 At a glance）500,000 tokens (Grok 4.7 official model page, At a glance)出处 ↗source ↗
  • 知识截点Knowledge cutoff　2026-05（官方文档信息框原文：「The knowledge cut-off date of Grok 4.7 is May 2026」；旧口径 2026-02-01 是 4.5 代截点，已随换代更新）May 2026 (official docs info box verbatim: "The knowledge cut-off date of Grok 4.7 is May 2026"; the older Feb 1, 2026 figure was the 4.5-generation cutoff and moved with the generation change)出处 ↗source ↗
  • 输入模态Input modalities　文本 + 图像输入、文本输出（Grok 4.7 官方模型页 At a glance：Modalities = Text, Image → Text）Text + image input, text output (Grok 4.7 official model page At a glance: Modalities = Text, Image → Text)出处 ↗source ↗
  • 实时信息Realtime data　官方文档：模型本身无实时事件知识，需开启服务端搜索工具（Web Search / X Search）Official docs: no realtime knowledge by default; server-side search tools (Web Search / X Search) must be enabled出处 ↗source ↗

以上均为官方文档/发布页原文的转述，核验日之后厂商可能已改规格；本站不实测、不排名、不背书厂商自评，也不收录价格数字——定价请直接看官方定价页（出处节有链接）。The above transcribe official docs/release pages as of the verification date; vendors may have changed specs since. This site runs no benchmarks, ranks nothing, endorses no vendor self-assessments, and records no price figures — for pricing go to the official pricing page (linked in Sources).

出处Sources

  • Grok 4.7 官方模型页（2026-10-30 经代理直抓 200；At a glance 规格与 datePublished 元数据取自该页）：Grok 4.7 official model page (direct fetch via proxy 200 on 2026-10-30; At a glance specs and datePublished metadata from this page): https://docs.x.ai/developers/models/grok-4.7
  • xAI 文档 Grok Models & Pricing 页（原 grok-3 URL 现承载全站模型定价与截点信息；2026-10-30 直抓 200：4.7 截点原文与搜索工具口径）：xAI docs Grok Models & Pricing page (the former grok-3 URL now carries site-wide model pricing and cutoff info; direct fetch 200 on 2026-10-30: the 4.7 cutoff verbatim and search-tool basis): https://docs.x.ai/developers/models/grok-3

核验快照：2026-10-30 · 复核周期 30 天，下次应在 2026-11-29 前复核。本站不实测、不排名，未知就写未知。Verification snapshot: 2026-10-30 · 30-day review cycle, next re-check due by 2026-11-29. No benchmarks, no rankings — unknown stays unknown.