Hobbits gather in a Shire meadow strung with bunting
108.2K views · 479 likes · 281 saves · 19 reposts · Posted Sep 25, 2026 · 2:22 · 3d scenes
OUR NOTEHobbit figures stand in a grassy Shire garden hung with colored bunting, from a rerun of Karpathy's Lord of the Rings experiment where Opus 5.5 built the world with no token cap, costing $252.
I just reran Karpathy’s Lord of the Rings experiment with Opus 5.5...
Karpathy capped Opus 5 at 1M tokens, around $10.
this time I gave Opus 5.5 no token cap at all.
same basic setup:
> first paragraph of LOTR
> let it build the world
> let it run for hours
and it absolutely destroyed Opus 5.
the result looks WAY better.
it also burned through $252 worth of tokens lol.THE PROMPT
The creator didn't publish a prompt for this one. The post text is below.
MAKE ONE LIKE THIS
Three steps, using what the creators in this index used.- 1 · Copy the prompt
This creator didn't share a prompt. Start from our template instead.
PROMPT TEMPLATE → - 2 · Long piece? Give Claude a framework
- OpenMontageEnd-to-end AI video production pipelines★ 61.5k
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- 3 · Render it to MP4
For a longer piece like this one, render with a framework so the timing is exact on every take.
CLAUDE CODE + HYPERFRAMES / REMOTION →
The creator didn't name their tools. Most videos like this are HTML, canvas or SVG animation written by Claude and screen-recorded or rendered to MP4 — how that works.
We're starting to leave the territory where you'd test an LLM by e.g. "create an svg of pelican on a bicycle". As one idea to generalize it, I was interested what Opus 5 would do if I gave it the first paragraph of the Lord of the Rings, a 1M token budget (~$10) and asked for three js render of it. Opus went off for ~2...
Indexed Sep 28, 2026, 8:28 AM · Views as of indexing. Video and post © their creator.