BeckonBench
TEST 06 · GAUNTLET v1

Remotion Promo Video

Measures motion design, multi-file project competence, agentic follow-through (the only agentic test in the gauntlet).

The prompt, verbatim

Using Remotion, create a 20-second promotional launch video for a fictional product called "Nightjar" — an app that turns your rambling voice memos into organized, searchable notes. Build the complete Remotion project and render it to MP4 at 1920x1080, 30fps. It should feel like a real product launch video: animated typography, smooth choreographed motion, a consistent visual identity, and a clear story of the product's core promise, ending on the product name. Everything must be drawn with code — no stock footage, downloaded images, or external fonts. Finish by rendering the video and telling me the path to the MP4.

gpt-5.6 (Sol Ultra) 10/10

runs first try3
polish3
prompt adherence2
wow factor2
total10

Perfect score. Lime-on-black Nightjar identity: 'Speak freely. Nightjar listens.' — animated waveform, choreographed task cards, rendered 1920x1080/30fps/20.00s exactly to spec in five minutes flat.

5m. 9.8k output tokens.

claude-fable-5 (Max effort) 10/10

runs first try3
polish3
prompt adherence2
wow factor2
total10

Perfect score — Fable's first 10 of the season. Navy/orange Nightjar spot: 'Listens. Transcribes. Organizes.' — note-card motion over a starfield, rendered 1920x1080/30fps/20.00s exactly to spec.

8m. 85.4k output tokens.