Tesla Plans to Open Source Model S and Model X Designs and Software
The move follows Tesla's similar open-source release of the original Roadster in November 2023.
Tesla CEO Elon Musk announced plans to make the designs and software of its Model S sedan and Model X SUV fully open source, extending a practice the company began with the original Roadster.
What Happened
In an announcement on July 24, 2026, Musk stated that Tesla would release all available design, engineering, and diagnostic materials for both models. This follows the same approach Tesla took in November 2023 when it made its original Roadster open source so that "whatever we have, you now have." The Model S, introduced in 2012 as Tesla's first mass-produced vehicle, and the Model X, launched in 2015 with its distinctive falcon-wing doors, both ended production in the second quarter of 2026 at the Fremont factory. By the time of Musk's announcement, custom orders had closed and only remaining inventory was available.
Why It Matters
For owners of these aging but still capable vehicles, open-sourcing provides better access to technical documentation, diagnostic tools, and software resources, making independent repairs more accessible and affordable. Independent repair shops and third-party specialists can support the large existing fleet without relying solely on Tesla's service network. Enthusiasts and engineers gain the ability to study real-world implementations of Tesla's battery, powertrain, and software systems, potentially accelerating broader industry progress in electric mobility.
The Bottom Line
Tesla is extending its open-source practice from the original Roadster to the Model S and Model X after ending production of both vehicles. The move aligns with the company's 2014 patent pledge and mission to advance sustainable transport by sharing knowledge rather than keeping it proprietary, while ensuring continued support for early adopters.
