XPENG's own reference file: what the manufacturer publishes about XPILOT ASSIST versions and Xmart OS

XPENG is one of several Chinese manufacturers now selling into markets outside China, and its marketing leans heavily on software: an advanced driver-assistance suite called XPILOT ASSIST and an in-car operating system called Xmart OS. Both names are central to XPENG's own marketing, and the primary reference for what they mean is the company's own global website, which publishes a version list, a software milestone history and a set of disclaimers that are easy to miss in the marketing copy.

This file summarizes what XPENG's global pages said when they were read for this article, on 11 September 2026. The pages are undated and their content changes, so anything quoted here should be checked against the live site before being relied on. Numbers are only as good as the manufacturer's page carries them, with the company's own caveats attached.

Three ADAS versions, model by model

On its global 'Intelligent' page, XPENG describes XPILOT ASSIST as its fully self-developed Advanced Driver Assistance Systems and states that they are currently available in three versions: 2.5, 3.0 and 3.5. The page immediately qualifies this: different XPENG models support different versions of XPILOT ASSIST, so the version fitted is a per-model question, not a brand-wide one. The company's marketing text around the versions is promotional in character — it describes 'best-in-class intelligent features' — and should be read as a claim by XPENG, not an independent assessment.

Xmart OS and the milestone list

Xmart OS is XPENG's in-car intelligent operating system, delivered through successive versions via over-the-air (OTA) updates. The global site publishes a 'key milestone' list tracing the system from version 1.2.1 to 3.1.0, recording which driver-assistance and comfort functions were added at each step. Read as a timeline, it shows the manufacturer's own account of how features such as highway navigation pilot and multi-storey valet parking assist arrived with specific software versions.

The milestones XPENG lists on that page include:

• Xmart OS 1.5.0: Traffic Jam Assistance, Adaptive Cruise Control, and Active Lane Change driver assistance features updated
• Xmart OS 2.1.0: Adaptive Cruise Control, Lane Centering Control, and Active Lane Change features added
• Xmart OS 2.5.0: Highway Navigation Guided Pilot added
• Xmart OS 2.6.0: Valet Parking Assist added
• Xmart OS 3.1.0: Multi-storey Valet Parking Assist added

OTA terms and limits the company itself sets

Two footnotes on the Intelligent page matter more than the marketing. First, the functions that can be added via OTA updates vary according to the vehicle's specific configuration, and some upgrades can only be acquired by purchasing the necessary software or hardware — so 'free updates forever' is not what the page promises. Second, XPENG tells owners to follow the specific OTA update instructions for their vehicle. The model pages add that OTA updates arrive over Wi-Fi or 4G, that a notification appears on the car's screen once downloaded, and that an update can be scheduled or cancelled from the touchscreen.

The driver-responsibility disclaimer

Both the X9 and the New G9 model pages carry the same footnote on XPILOT ASSIST, and it is the most important text on the page for a buyer. XPENG states the system is a driving assistant function that does not cope with all traffic, weather and road conditions, that the driver must always be aware of the relevant traffic situation, and that the driver must actively intervene if the system fails to provide correct steering assistance or maintain distance and speed. The company lists conditions requiring caution, including icy and snowy roads, poor visibility, rough mountain roads and motorway exits, and directs readers to the user manual for the system's limitations.

What the spec fields did not provide, and what the pages do claim

The X9 and New G9 pages were read for this file, but their headline specification widgets rendered without usable numbers at capture: the WLTP range, 0–100 km/h and 10–80% SOC fields all showed as zero, so those particular fields could not be quoted. Other performance claims elsewhere on the same pages do carry numbers, however: the X9 page states a charge from 10% to 80% SOC in just 12 minutes, and the New G9 page carries a 33.9 m braking distance from 100 km/h to 0, a visual perception range extended by 125% compared with the previous generation, and a maximum of 423 kW and 695 N·m output. All of these figures sit under the company's own footnote saying that all technical data are subject to type approval, that data were obtained during internal testing, and that actual range may differ from the calculated WLTP figure depending on driving style, load, temperature, terrain and other factors. Configuration, the company adds, may vary by market.

Qualitative platform claims on the same pages, attributed by XPENG to its own design and testing rather than to independent measurement, include the X9's 'full 800V high-voltage SiC platform' and a design to E-NCAP 5-star safety standards; the New G9 page also cites a dual-chamber air suspension and a 5-star Euro NCAP safety standard. These are the company's claims, with the internal-testing footnote above attached.

How to verify this yourself

Everything quoted here comes from XPENG's global site — the /intelligent page and the X9 and New G9 model pages — as captured on 11 September 2026. To check the current state: open xpeng.com, visit the Intelligent page for the XPILOT ASSIST version list, OTA footnotes and Xmart OS milestones, and the individual model pages for the disclaimers and any updated specifications. For the version of XPILOT ASSIST fitted to a specific car, ask the dealer for that market in writing, since the manufacturer's own footnote says model support differs by version. Regulatory figures such as WLTP range and Euro NCAP results should be confirmed with the approval body or Euro NCAP's published results rather than the manufacturer's page.