- Runway launched a $10 million venture fund targeting pre-seed and seed-stage AI startups, with individual checks of up to $500,000.
- The accompanying Builders program offers 500,000 free API credits and access to Runway’s Characters real-time video agent API.
- A founding cohort including Cartesia, MSCHF, Oasys Health, Spara, Subject, and Supersonik is already participating.
- The fund focuses on three areas: frontier AI architecture, application-layer builders, and new forms of media creation.
What Happened
Runway, the AI video generation company valued at approximately $5.3 billion, announced a $10 million venture fund and a Builders program on March 31, 2026. The fund will write checks of up to $500,000 for pre-seed and seed-stage startups building across AI, media, and world simulation.
Alejandro Matamala-Ortiz, Runway’s Chief Innovation Officer, said the initiative reflects the company’s broader platform ambitions. “Many companies like ours are investing heavily on the primitives that will unlock a new set of applications or new types of companies,” he told reporters.
The fund is seeded with capital from Runway’s existing investors and close partners. Runway has quietly backed early-stage founders over the past 18 months, including LanceDB, which builds databases for AI applications, and Tamarind Bio, which uses AI to design proteins for drug discovery. The new fund formalizes what had been informal angel-style investments into a structured vehicle.
Why It Matters
The launch signals Runway’s shift from a standalone AI video tool to a platform company seeking to build an ecosystem around its models. By funding startups that build on its technology, Runway aims to expand the use cases for what it calls “video intelligence,” a category it sees extending beyond content creation into industries like healthcare, financial services, and manufacturing.
Matamala-Ortiz framed the opportunity around Runway’s Characters API, which enables real-time interaction with generative AI agents that have faces and voices ranging from cartoonish to photorealistic. “Until recently, we didn’t have the possibilities of talking to a real-time video agent,” he said.
The strategy mirrors moves by other AI platform companies. OpenAI runs a startup fund, and Google has invested in companies building on its Gemini models. For Runway, the fund creates a financial incentive for startups to build on its infrastructure rather than competing alternatives like Pika or Google’s Veo.
Technical Details
The Builders program provides eligible startups with 500,000 free API credits and access to Characters, Runway’s recently released real-time video agent API. Characters allows developers to create generative AI entities that users can interact with in real time, supporting a range of visual styles and voice configurations.
The fund’s investment thesis covers three categories. First, technical teams pushing the frontier of AI and building new architectures. Second, builders creating the application layer on top of foundation models. Third, companies experimenting with new forms of media creation, storytelling, and distribution.
The founding cohort includes six companies: Cartesia, MSCHF, Oasys Health, Spara, Subject, and Supersonik. These span from healthcare applications to media experimentation. Oasys Health is applying video intelligence to patient care, while MSCHF is known for viral internet projects that blend art and technology.
Who’s Affected
Early-stage AI startups at the pre-seed to Series C stage can apply for the Builders program. The fund itself targets pre-seed and seed-stage companies specifically. Startups building real-time video applications, interactive media, or AI agent interfaces are the most directly relevant candidates.
For Runway’s competitors in the AI video space, including Pika, Kling, and Sora, the move adds competitive pressure. Ecosystem investments can create switching costs and developer lock-in that pure product competition does not. Startups that build their products on Runway’s APIs and receive Runway funding are unlikely to migrate to a competing platform.
What’s Next
Runway described the fund as part of its push toward “world models” that are interactive, real-time, and immersive. “We are really trying to see which teams see the potential and positive impacts of this technology,” Matamala-Ortiz said. “This is a part of our general world models, which is what we’re pushing for next: a set of models that are interactive, real-time, and immersive.”
Applications are open through the Runway website, though the company has not disclosed a deadline or the total number of startups it plans to accept into the Builders program. The $500,000 maximum check size positions the fund as a supplement to traditional venture rounds rather than a replacement, and it remains unclear whether Runway will take equity stakes or structure investments as convertible notes.
