**# Nexus Historia Update: Faster, Clearer Trailers and Smarter Reports** We’ve made significant improvements to make your scenarios more vivid, your trailers more cinematic, and the app more responsive.
What’s New
The Veo 3.1 video engine (Replicate) now delivers cleaner motion and stronger temporal consistency, with prompts tuned for documentary realism and smooth narrative flow. On-screen text has been removed entirely, thanks to stricter prompt sanitisation. By forbidding titles, labels, and captions, the trailers now display crisp, cinematic visuals without any of the fuzzy AI-generated text that previously crept in. Previews are now faster. As soon as Veo returns a URL, the trailer begins playing, while storage mirroring and MP4 transcoding continue quietly in the background. The video prompts themselves have grown smarter. Every trailer follows a five-beat structure that mirrors how alternate history stories naturally unfold: starting from the baseline world, moving through an A→B fusion, then the point of divergence, the ripple effects, and finally an emblematic close. Era-aware looks—like WW1 haze or Renaissance chiaroscuro—and style-specific grammar for Chronicle, Epic, Antiquity and Renaissance give the visuals a stronger historical identity. The scenario pipeline now submits Veo jobs asynchronously and polls their status, giving you quicker feedback through the interface. Meanwhile, reports are richer and more structured, asking the model for explicit causal chains, assumptions, uncertainties, and falsifiable signs. The result is a much clearer A→B→C line of reasoning.
How It Helps You
These changes bring the trailers closer to your original vision. Instead of awkward title cards, the visuals now carry the weight of the narrative themselves. You can iterate faster, because previews appear almost immediately while other processes finish in the background. And the historical fidelity of each scenario has improved, with era and style cues aligned more tightly with the time period and tone you’ve chosen.
Tips for Best Results
Specificity pays off. When you clearly define the point of divergence and time period, the prompt engine turns that into concrete visual beats. Choosing the right style preset shapes how the camera moves and frames the story. If you’re planning to export or showcase your scenario, HD output is the way to go, with explicit 1080p and 720p sizing now supported.
Behind the Scenes
These improvements come from targeted updates across the platform: `src/lib/replicate.ts`, `src/components/ScenarioResult.tsx`, and `src/components/CreateScenario.tsx` on the client side, with prompt sanitisation handled by `supabase/functions/submit-video/index.ts` and enhanced report prompting in `supabase/functions/submit-scenario/index.ts`.
What’s Next
The next phase focuses on creating a consistent asynchronous experience for manual trailer generation, refining per-era timing (with longer WW1 holds and stylised Renaissance pans), and adding an optional captions track for accessibility that stays separate from the visuals.
FAQs
AI-rendered text often looks blurry, which is why text overlays have been removed entirely. A toggle to re-enable title cards is planned but will remain off by default. These changes don’t affect credit pricing, though HD may take a little longer to process.
Recommended Actions
This is the perfect moment to try a new scenario and experience the improved pacing and stronger visual identity. Once the preview appears, you can export the MP4 while transcoding runs in the background. We’d also love to hear which eras and styles you’d like us to model more deeply in future updates.