Andreessen Horowitz’s Speedrun Accelerator: A Game-Changer in the Startup World
One of the most sought-after startup accelerators in the tech industry right now is Andreessen Horowitz’s Speedrun program. Launched in 2023, this accelerator boasts an acceptance rate of less than 1%, making it extremely competitive. According to a January blog post, out of over 19,000 startups that pitched, only 0.4% were accepted into the latest cohort.
Initially focused on gaming startups, Speedrun has since expanded its scope to include entertainment, media, and is now considered a “horizontal program.” Joshua Lu, the program’s general manager and a partner at a16z, revealed to JS that founders of any type of startup can now apply, with the program running for approximately 12 weeks in San Francisco. While it previously had a presence in Los Angeles, the focus has now shifted solely to San Francisco.
With two cohorts held each year, around 50 to 70 startups are selected for each cycle. The program offers investments of up to $1 million per company, although it comes with a higher price tag compared to other accelerators. Speedrun typically invests $500,000 upfront in exchange for a 10% stake in the startup through a SAFE note, with an additional $500,000 provided if the company raises its next round within 18 months, based on mutually agreed terms with other investors.
Comparatively, Y Combinator takes a fixed 7% equity stake in a company for $125,000, with an additional $375,000 invested on an uncapped MFN safe basis.
Despite being “equity expensive,” Speedrun offers founders access to a16z’s vast advisory and business networks, providing support in areas such as go-to-market strategies, brand development, media planning, and talent acquisition. Additionally, startups in the program receive perks like $5 million in credits from vendors like AWS, OpenAI, Nvidia, and Deel.
Insights on Standing Out in the Speedrun Application Process
With a high level of interest and a low acceptance rate, JS sought advice from Joshua Lu on how startups can increase their chances of being selected. The current cohort, which commenced in January and will conclude in April with a Demo Day, will be followed by the opening of applications for the next cycle in April. Lu mentioned that Speedrun reviews off-season applications throughout the year.
Focus on the Founding Team
Speedrun places a strong emphasis on early-stage startups, paying close attention to the composition of the founding team and whether their skills are complementary. According to Lu, the ideal founding team should not have any significant skill gaps and should demonstrate self-awareness and a clear hiring plan. The program also favors teams with prior experience working together or sharing a common history.
While advancements in AI have made software development more accessible, Lu highlighted the importance of technical proficiency within the founding team. He also noted that demonstrating market validation or traction for their product can enhance a startup’s chances of selection.
Limit the Market “Theory”
Lu cautioned against spending excessive time elaborating on market theories or the perceived problem and solution in the application. Instead, he advised focusing on why the founding team is well-suited to address the specific challenge at hand and presenting any validation of the idea.
It’s Okay to Use AI, but Be Prepared for Live Interviews
While founders are encouraged to leverage AI tools to refine their applications and ensure clarity, Lu emphasized the importance of being able to articulate their startup’s vision without AI assistance during live video-call interviews. Approximately 10% of founders progress to this stage, where they face a panel of two to three investors.
Following the live interview, selected founders undergo additional screening calls before the final cohort decision is made.
Be Proactive in Networking
While acknowledging the presence of other accelerator programs, Lu underscored Speedrun’s unique offering of access to a specialized operating team with diverse expertise. He advised founders to proactively engage with the program’s resources, including marketing, finance, and management support. By leveraging the network of experts available through Speedrun, founders can maximize the benefits of the program.
Insights from a Speedrun Founder
Founder Mohamed Mohamed, a participant in the recent cohort, recently secured a $5 million investment for his proptech startup Smart Bricks through Speedrun. Mohamed praised the program for its focus on co-founders working on frontier AI applications and its rigorous yet thoughtful approach to evaluating startups.
He emphasized the importance of presenting a clear and honest assessment of the company’s strengths, weaknesses, and unique positioning in the market. Mohamed advised against over-optimizing or exaggerating achievements, advocating for intellectual honesty and precision in the application process.
In conclusion, Mohamed highlighted the value of articulating the challenges and opportunities in a startup’s journey, as well as the significance of clear, concise communication over embellished narratives.
Correction: The story has been updated to reflect the correct information regarding Y Combinator’s investment terms.

