Runway launches Coconut Crunch brief with up to $100K in Big Ad Contest prizes

• Runway opened a new Coconut Crunch prompt for its Big Ad Contest, and Runway's contest post says submissions close April 1.
• The contest page linked from Runway's rules post frames the challenge as a 30-60 second speculative ad made entirely in Runway, with up to $100K in total prizes.
• Creators are already posting finished entries; in Ben Nash's submission, Ben Nash shared a completed spot built for the contest deadline.
• Nash says the visuals in that piece were generated in Runway with Nano Banana 2, while Kling 3 Pro handled frame interpolation and the voiceover, sound design, and final composition were finished in post production notes.

Runway's contest page is less a general prompt jam than a constrained ad exercise: paid-plan users can enter solo or in teams, submit multiple spots, and have to answer one of the official fictional product briefs inside Runway while keeping the platform watermark. The brief highlighted in Runway's latest post is Coconut Crunch, pitched with a glossy tropical-ad tone rather than an open-ended film challenge.

One early example shows the workflow creators are using under that constraint. Ben Nash's ad, also surfaced via the YouTube upload, centers a single AA battery while devices and eras shift around it; his notes say the visual generation happened in Runway with Nano Banana 2, then Kling 3 Pro was used for interpolation before traditional post handled voice, sound, and finishing. That makes the contest look less like pure one-click generation and more like a hybrid stack built around Runway as the required production base.