Emad Mostaque resigned as CEO of Stability AI to pursue decentralised AI. Shan Shan Wong and Christian Laforte serve as interim co-CEOs while the company searches for a permanent replacement. This leadership change follows reports that Mostaque faced disputes with investors regarding the company’s finances and management. Stability AI previously reported spending $8 million per month, mostly on compute expenses.
Creative workflows and licensed data
Stability AI secured $76M in Series B funding on August 25, 2026, bringing its total funding to $232M. CEO Prem Akkaraju leads the company alongside a board including James Cameron and Sean Parker. New investors include Electronic Arts, Sony Music Group, Universal Music Group, and Warner Music Group. These companies hold significant intellectual property that generative AI models often use without permission. By involving these rights holders, Stability AI builds tools alongside the artists and studios that define the field.
The company launched Stable Audio 3.0, which uses fully licensed data for music models. This product includes a DAW plugin to help professional producers integrate the technology into existing workflows. The company also introduced Stable Video Diffusion 4D 2.0 (SV4D 2.0) to improve video quality for real-world objects. Can these specialized tools compete with general purpose models from OpenAI or Google?
| Tool | Max Duration | Best Use Case |
|---|---|---|
| Runway Gen-3 | 10 seconds | Professional editing |
| Kling AI | 2 minutes | Human motion |
| OpenAI Sora | 20 seconds | Physical simulation |
| Pika | 5 seconds | Social media clips |
Competition in the video market
The AI video market reached an estimated $4.8 billion by early 2026. Runway remains a top choice for editors because its Motion Brush tool lets users paint specific motion vectors onto frames. However, Runway’s pricing scales steeply, with the Unlimited plan costing $76 per month. Kling AI, developed by Kuaishou, provides a different advantage with its ability to generate clips up to 2 minutes long. I find Kling’s human motion realism superior to Runway, but its interface feels less polished.
| Feature | Runway Gen-3 Alpha | Kling AI 1.5 Pro | OpenAI Sora |
|---|---|---|---|
| Price (Entry) | $15/mo | ~$8/mo | $20/mo |
| Control | Advanced | Advanced | Moderate |
| Physics | High | Very High | Excellent |
You should test Kling if you need high-volume content at a lower cost. OpenAI Sora handles physical causality well, such as fluid dynamics when a glass tips, but it struggles with complex multi-character interactions.
