Runway, an AI video startup based in New York, has successfully raised $308 million in its latest funding round, bringing its valuation to over $3 billion. This new investment, led by General Atlantic, marks a significant increase from its previous valuation of $1.5 billion just two years ago. In June 2023, Runway had already secured a $141 million extension to its December 2022 Series C funding, which included contributions from major players like Google and Nvidia.
In addition to General Atlantic, other notable investors in this round include Nvidia, SoftBank Group, Fidelity Management & Research Co., and Baillie Gifford. Runway specializes in software that enables users to generate videos using text prompts or images. Recently, the company introduced its new AI model, Gen-4, which enhances video creation by allowing for consistent characters and backgrounds.
Key takeaways
- Runway raised $308 million led by General Atlantic, taking its valuation above $3 billion — double the $1.5 billion it carried two years earlier.
- Nvidia, SoftBank Group, Fidelity Management & Research and Baillie Gifford also participated; Google and Nvidia had backed the earlier Series C extension of $141 million in June 2023.
- The company released Gen-4, a model that maintains consistent characters and backgrounds across generated video — a persistent weakness in earlier systems.
- Runway partnered with LionsGate the previous autumn to build a video generation model tailored to the studio.
- Founded in 2018, it has raised over $540 million in total.
Last fall, Runway partnered with production company LionsGate to develop a tailored video-generation model. The startup plans to utilize the new funds to further enhance its AI capabilities, particularly in film and animation. Since its inception in 2018, Runway has raised over $540 million.
AI Funding Trends
The trend of substantial investments in AI continues to grow. According to recent reports, AI was the leading sector for venture funding in the first quarter of 2025, with a remarkable $59.6 billion invested. This quarter set a record for AI funding, accounting for 53% of global venture capital investments.
A significant contributor to this surge is OpenAI, which recently completed the largest private funding round in history, raising $40 billion and achieving a valuation of $300 billion.
Frequently asked questions
Why does character consistency matter so much?
Without it, a character's face or clothing changes between shots, which makes generated footage unusable for actual storytelling. Gen-4 holding characters and backgrounds stable is what moves the tool from novelty toward production work.
What does the LionsGate partnership involve?
Building a video generation model tailored to the studio, rather than selling it a general-purpose product. That direction is where Runway is aiming the new capital — film and animation specifically.
How did this compare to the wider AI market?
AI led venture funding in Q1 2025 with $59.6 billion, or 53% of global venture capital — a record quarter, driven substantially by OpenAI's $40 billion round at a $300 billion valuation.
