Andreessen Horowitz (a16z) has officially opened applications for the fifth edition of its acclaimed startup accelerator, Speedrun. The upcoming cohort, SR005, is set to kick off on July 28, 2025, in Los Angeles, and will conclude with a high-profile Demo Day on October 7, aligning with SF Tech Week.
Speedrun is a 12-week program designed for ambitious early-stage founders building at the intersection of technology, AI, and entertainment. Participants gain access to hands-on mentorship, exclusive events, and a network of top-tier investors and operators.
Startups selected for SR005 may receive up to $1 million in investment from a16z, further reinforcing the firm’s commitment to backing transformative ideas from day one.
The application window closes on May 11, 2025, and a16z is encouraging global founders to apply early via the official Speedrun website.
Who a16z is looking for
a16z is seeking founders who are building experiences, products, and platforms that push the boundaries of technology, entertainment, and AI.
That includes:
- AI-first creative tools or infrastructure
- AI agents designed to enhance or augment human labor
- AI consumer apps that reimagine how we connect, create, and play
- Next-gen AI marketing tools that help businesses and creators reach their audiences
- Platforms for real-time collaboration, play, or expression
- Games, virtual worlds, or immersive storytelling experiences
- 3D, multiplayer, or next-gen content creation engines
- Tools for identity, avatars, or streaming in digital spaces
- Or something a16z haven’t even imagined yet
The company welcomes solo founders and small teams, especially those with a strong track record of shipping, a knack for unique insights, and the grit to move fast.
For more information and to submit an application, visit here.
