xAI

xAI hiring

xAI lists 308 open roles on its Greenhouse job board today, and 11 of them are research, model, training or inference roles. Top locations: Memphis, TN (171), Southaven, MS (137), Palo Alto, CA (74), New York, NY (27), Remote International (22).

• Machine Learning Engineer, Ads Palo Alto, CA
• Machine Learning Engineer, Recommendation Systems Palo Alto, CA
• ML Infrastructure Engineer Palo Alto, CA
• Model Engineer, Mid-training Palo Alto, CA
• Model Engineer, Post-Training & RL Palo Alto, CA
• Model Engineer, RL Inference Palo Alto, CA
• Model Engineer, RL Training Framework Palo Alto, CA
• Network Engineer, High-Speed Interconnects (ML Infrastructure) Palo Alto, CA
• Software Engineer, Imagine Model Palo Alto, CA
• Software Engineer, Training/Inference (C++) Palo Alto, CA; Seattle, WA
• Software Engineer, Voice Model Palo Alto, CA

Source: xAI careers (Greenhouse), read 2 Nov 2026. All research roles at tracked labs.

xAI funding filings

We found no Form D filed by xAI itself under this name. Many labs raise through foreign entities or file under a different legal name.

Investment vehicles named after xAI

69 special-purpose vehicles carrying the xAI name have filed a Form D, 24 of them in the last 12 months. SPVs pool money from smaller investors to buy into one company, often on the secondary market, so a rising count is a sign of investor demand.

• OPX2025 xAI, a Series of Opulentia Ventures X LLC26 Jun 2026
• NB Ventures XAI II, LP25 Jun 2026
• xAI Fund a Series of CGF2021 LLC7 May 2026
• MY PE Access Fund LLC - xAI Series E22 Apr 2026
• XAI-3, a series of ALEXTAR VC, LLC6 Apr 2026
• HII xAI-01, a Series of HII xAI LLC23 Mar 2026
• HII xAI-01, a Series of HII xAI LLC12 Mar 2026
• HII xAI-03, a Series of HII xAI LLC10 Mar 2026

Source: SEC EDGAR full-text search for "xAI", Form D. Name matches can include unrelated filers; tell us if one is wrong.

xAI research

101 papers in OpenAlex list an author affiliated with xAI (United States) in the last 12 months. The most cited:

1. Meta-designing quantum experiments with language models19 Feb 2026 · 3 citations
2. First Detection of the 142857 Periodic Mode and Constant Dark-Energy Equation of State in JWST JADES DR4 High-Redshift Galaxies21 Nov 2025 · 2 citations
3. QFunity: Quantum Fractal Unity – A Scale-Dependent Unified Theory of Everything (Version 1.3)25 May 2026 · 1 citations
4. MAGIC: Magnetic Advanced Grok Infinbidulator Combobulator23 Feb 2026 · 1 citations
5. Deeper Association Examination Routine (DAER): A Grammatically-Inspired Coherence Gate for Real-Time Path Selection in Harmonic Spiral Networks18 Dec 2025 · 1 citations

Source: OpenAlex (CC0), institution xAI (United States), read 2 Nov 2026.

xAI models

Latest releases

• xai-org/grok-222 Aug 2025
• xai-org/grok-117 Mar 2024

Most downloaded

• xai-org/grok-27,205 downloads (30 days)
• xai-org/grok-12,713 downloads (30 days)

Source: Hugging Face Hub, organisation xai-org, read 2 Nov 2026.

People at xAI

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