Tesla stock declined by 3% on Tuesday after Nvidia CEO Jensen Huang introduced Alpamayo, an open-source AI platform targeting the “long-tail” challenges of autonomous driving. Investors are reassessing Tesla’s lead in self-driving technology as Alpamayo promises to offer OEMs a scalable suite of AI models, simulation tools and physical datasets. Nvidia’s emphasis on transparent, reasoning-based autonomy and its partnership with Mercedes-Benz to deploy comparable functionality this year have heightened competitive pressure on Tesla’s Full Self-Driving system, which remains proprietary to its own fleet.

Tesla’s Shanghai gigafactory reported a December delivery record of 97,171 vehicles, the highest monthly figure since the plant’s 2019 inception. However, aggressive local incentives and intensifying competition from BYD and NIO failed to prevent a year-on-year decline in total China shipments for 2025. Preliminary data indicate full-year deliveries in Greater China were down by nearly 8%, marking the second consecutive annual drop. Investors will watch whether Tesla can sustain pricing discipline and margin stability as Chinese rivals broaden their EV portfolios and expand subsidized financing programs.

Elon Musk publicly dismissed concerns that Nvidia’s entry into the self-driving market poses an immediate threat to Tesla’s autonomy business. During a shareholder event, Musk reiterated confidence in Tesla’s in-house AI hardware development and end-to-end software stack, noting that proprietary integration offers a performance edge over modular third-party solutions. He acknowledged that scaling robust AI compute remains challenging but suggested Tesla’s FSD Supervised trials and upcoming robotaxi rollout—pending regulatory approval—will validate the company’s long-term technological moat.