3 Minutes Thriller Film From 1 Prompt – Seedance 2.5 Long Video Mode
In this tutorial we will getting a look at the Long Mode feature in Seedance 2.5 which allows you to create videos up to 180 seconds of duration, with a single prompt. We will be doing this by creating a 3 minute long short thriller film and analyzing the results. Here’s the video:
Video Summary
In this video, Creative Pad Media evaluates the Seedance 2.5 Long Video Mode (beta) inside Dreamina by generating a 3-minute thriller film using a single detailed prompt [00:34].
Key Takeaways & Workflow
- Concept & Generation: The creator used ChatGPT to write a short storyboard about a woman moving into an apartment where an escaped convict is hiding under her bed [01:46].
- Settings & Cost: Using two reference character images and a timestamped prompt [02:29], the 180-second video was rendered at 720p (21:9 ratio) [02:58]. It took roughly 45 minutes to process and cost 24,300 credits (~$70) [01:16].
- Quality & Flaws: The single-prompt output suffered from noticeable visual and continuity issues, such as abrupt day-to-night shifts and missing objects (e.g., a mattress suddenly appearing) [06:15].
- Creator Recommendations:
- Generating long videos in one go is currently too expensive and unreliable for polished results [07:30].
- It is better to generate shorter 30-second clips and manually extend or trim them using video editing tools [06:36].
- Re-generating bad scenes via Dreamina’s Smart Edit function incurs high costs, making manual editing more practical [07:15].
Important Links
