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Y Combinator - Production AI agents fail the same way every day – loops, dead ends,

ReasonBlocks · Apr 2026 · 1:01 · AI-annotated

Length
1:01
Scenes
9 · 6.9 s avg
Product on screen
0:00
Features shown
4
Call to action
0:56 · 92%
Voiceover
No
00:00:00 / 01:01:43

ReasonBlocks’s 1:01 launch film runs 9 scenes, about 6.9 s each. The product is on screen from the first frame and 4 features are revealed, with social proof. The call to action lands at 0:56 (92% in). The video is a grid-paper storyboard that opens dark, then moves through labeled feature cards, each pairing a monospace title with a flat animated UI demo. Signature moves are line-by-line log fills, counting numbers, and a pixel-block logo that bookends the piece.

No filming indicatedEstimated needs: 2 capture groups — your screens or recordings · 1 official logo — reused across the film · 4 graphic passages — draw or supply
Plan my film from this onePrintable storyboard

Is this your launch? to your site or press kit.

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Y Combinator - Production AI agents fail the same way every day – loops, dead ends,, scene by scene

· 9 scenes as text

  1. 01 · Product intro · 0:00–0:00

    A white pixel-block glyph appears centered on a black field and holds still, the closing mark of the piece. The background shifts from a faint gray grid to solid black as the mark locks in place.

    On-screen text: “乐”

    Camera: Static

  2. 02 · Product intro · 0:00–0:06

    A white pixel-block logo with a soft glow sits above a thin rule on a dark grid background. The bold monospace headline 'Introducing ReasonBlocks' fades in below it, then a smaller gray uppercase tagline fades in, all on a locked-off frame.

    On-screen text: “Introducing ReasonBlocks”, “YOUR AGENTS SMARTER AND CHEAPER WITH EVERY RUN”

    Camera: Pull out

  3. 03 · Problem · 0:06–0:19

    The intro title and logo crossfade out as a split-screen of two run-log panels fades in under the headline. The left panel fills line by line with repeating error and redo rows, the right panel resolves cleanly after a black intervention banner slides across a row.

    On-screen text: “Same task. Two outcomes.”

    Techniques: Split screen

    Camera: Static

  4. 04 · Feature reveal · 0:19–0:26

    Eight numbered squares build left to right on a white grid under a black-and-orange headline; steps 1-3 fill black, step 4 glows orange under a failure detected tag, a green ring draws around it, then all squares fill green beside a RESOLVED chip.

    On-screen text: “MID-RUN CORRECTION”, “Your agent gets stuck. We catch it mid-run.”, “failure detected”, “correction applied”, “RESOLVED”, “No retries. No wasted tokens.”

    Camera: Static

  5. 05 · Feature reveal · 0:26–0:34

    A flat product dashboard sits under a teal logo and a black monospace headline. The left step timeline fills row by row, the middle monitor bars extend, and the right composite score counts up from red to a green resolved state as an intervention note appears.

    On-screen text: “See every run. Catch every failure.”

    Camera: Static

  6. 06 · Feature reveal · 0:34–0:42

    On white, a 'CONTEXT 100%' bar panel and a grid of tool-call chips build up under a monospace headline, then the chips give way to a 'COMPRESSED' summary card while the bar drops to 15%, an arrow linking the two.

    On-screen text: “CONTEXT COMPRESSION”, “Keep what matters. Compress the rest.”

    Camera: Pull out

  7. 07 · Social proof · 0:42–0:47

    Three white stat cards sit on a light grid background as their green percentages count up to 42, 52 and 24, each with a drawn underline. A bordered white panel then slides in from the left, covering the first card with the line about the reasoning library.

    On-screen text: “42%”, “MORE ACCURATE”, “SWE-bench Pro”, “52%”, “LOWER COST”, “Zero quality loss”, “24%”, “LOWER LATENCY”, “Fewer steps, faster results”, “Your reasoning library grows with every run.”

    Techniques: Kinetic type

    Camera: Static

  8. 08 · Feature reveal · 0:47–0:56

    A wall of muted multicolor vertical bars holds a centered white card with the headline. Colored cells pop out of the grid in sequence, each opening a small white log card with a run entry. The grid flashes to full saturation twice, then the whole frame fades to white.

    On-screen text: “REASONING LIBRARY”, “Your reasoning library grows with every run.”, “Unique to your workflow.”

    Camera: Static

  9. 09 · CTA · 0:56–1:01

    A white grid backdrop centers the black pixelated ReasonBlocks mark and bold wordmark. The gray tagline fades in beneath, then the URL appears below it, and the lockup holds still to the end.

    On-screen text: “Your reasoning library grows with”, “every run.”, “EVERY AGENT RUN,”, “MADE SMARTER.”, “reasonblocks.com”

    Camera: Static