TypeSafe AI announced on October 9, 2026 that it has raised an $870 million Series A at a $7.5 billion valuation, led by Andreessen Horowitz with participation from Sequoia Capital, existing investor DCVC, and angel investors. Andreessen Horowitz general partner Martin Casado is joining the company’s board. Round Terms and Investors Andreessen Horowitz confirmed it is leading the investment in a post dated October 9, 2026 and bylined by Jennifer Li, Sarah Wang, Martin Casado, Marc Andreessen…