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## Overview Grok 4.7 is the latest large language model release from SpaceX Corp., which now owns the Grok model series originally created by Elon Musk's xAI Corp. (SiliconANGLE, September 21-22, 2026). The company behind Grok is now referred to as "SpaceXSI" (formerly xAI) in subsequent reporting (SiliconANGLE, October 14, 2026) — this naming has not been reconciled with the earlier SiliconANGLE account describing a full fold-in to "SpaceX"; it is unclear whether SpaceXSI is a subsidiary, division, or rebrand distinct from the parent SpaceX Corp. Separately, the entity is referred to as "X.AI" in an October 21, 2026 class-action filing, adding a third naming variant to the unresolved corporate-identity picture. ## Corporate Structure The Grok algorithm series was originally created by an Elon Musk-founded startup called xAI Corp. Musk merged xAI Corp. with xAI Inc. last year (SiliconANGLE, September 21-22, 2026) — note: an earlier version of this page described the merger as "xAI with X Corp"; the SiliconANGLE article specifies the merger was between xAI Corp. and xAI Inc. The combined organization was subsequently folded into SpaceX, which gained the Grok model series as part of that consolidation (SiliconANGLE, September 21-22, 2026). A later SiliconANGLE article refers to the AI company as "SpaceXSI, formerly xAI" and attributes it to Elon Musk without reiterating the SpaceX parent framing (SiliconANGLE, October 14, 2026); this naming discrepancy has not been explained or reconciled across sources. A class-action lawsuit filed around October 21, 2026 names the defendant as "X.AI" (Top Class Actions, October 21, 2026), a fourth label variant (alongside xAI Corp., xAI Inc., and SpaceXSI) that further complicates identifying the current legal entity operating Grok. ## Features Grok 4.7 is described as SpaceX's most capable large language model to date, introducing long-horizon processing capabilities and safety upgrades (SiliconANGLE, September 21-22, 2026). The model was also announced directly via xAI's own channel (x.ai/news, September 21, 2026), though that release notice did not itself provide additional detail beyond the announcement. Separately, SpaceXSI released Grok Voice 3.0, a new version of its speech-to-speech model powering the Voice Agent API, which it is pitching to businesses for customer support and sales call voice agents (SiliconANGLE, October 14, 2026). Independent testing firm Artificial Analysis ranks Grok Voice 3.0 first among speech-to-speech models, ahead of OpenAI and Google offerings (SiliconANGLE, October 14, 2026). ## Legal Issues A class action lawsuit filed against "X.AI" alleges that Grok subscriptions use deceptive automatic-renewal tactics that make cancellation difficult, trapping consumers in unwanted subscriptions (Top Class Actions, October 21, 2026). The claims are allegations at this stage; no judgment or settlement has been reported. ## Strategic Context This release continues the rapid iteration cadence of the Grok model family under its new corporate home at SpaceX, following the prior consolidation of xAI into the space company. The move reflects SpaceX's expanding ambitions beyond aerospace into frontier AI development, a strategic pivot relevant to its reported IPO plans and valuation. The October 2026 Grok Voice 3.0 launch signals an expansion into enterprise voice-agent products and competitive benchmarking against OpenAI and Google in the speech-to-speech category (SiliconANGLE, October 14, 2026). The emerging class-action allegations over subscription practices (Top Class Actions, October 21, 2026) introduce a consumer-protection/legal risk dimension to the Grok consumer product line, separate from the enterprise voice-agent push. ## Connections Related entities: xAI Corp., xAI Inc., SpaceX Corp., Elon Musk, OpenAI, Google (AI division), Artificial Analysis (benchmarking firm), X.AI (named defendant in class action). ## Section Relevance AI/Tech, Business, Legal/Consumer Protection