a16z Speedrun SR006

a16z Speedrun SR006 is the sixth cohort, running from January to April 2026 in San Francisco. Each company receives $500,000 via post-money SAFE plus 10% equity, totaling $1 million—continuing the deal structure introduced in SR005. SR006 attracted over 19,000 applicants, resulting in a 0.4% acceptance rate that makes it one of the most selective accelerator programs in the world. The batch continues Speedrun's all-industries approach with a heavy emphasis on AI-native companies. The cohort includes founders working on AI infrastructure, developer tools, consumer applications, enterprise software, and creative technology. SR006 represents Speedrun's continued maturation: the program has developed a strong alumni network, established relationships with top-tier follow-on investors, and built a reputation for producing fundable companies at a high rate. The San Francisco location provides proximity to the AI ecosystem's center of gravity, and the 12-week program provides intensive mentorship from a16z partners and portfolio company operators. By SR006, Speedrun had established itself as a legitimate competitor to Y Combinator in the accelerator landscape, particularly for AI-focused founders.