Rivian doesn't disclose if the value of its $5.8 billion joint venture will expand as a result. Get your pass and bring someone with you at 50% off. Image Credits:Screenshot/Rivian Transportation Rivian expands joint venture with VW to include AI assistant Kirsten Korosec 1:05 PM PDT · October 29, 2026 The $5.8 billion joint venture between Rivian and Volkswagen Group is expanding to include AI assistants.