Claude Opus 5.5 in Claude Code 2.1.280
skills off
Zoom, inline player and more ways to view
The model's own page, run in a sandboxed frame only when you ask (a page that needs its own origin opens in a new tab on a separate demo site). Phones get a full-screen player capped at 1.5x pixel density (2x on larger screens) so it stays smooth; the original page runs uncapped. It starts in its auto-tour (T switches to play mode on a keyboard).
Wall time 55m 03sCost $4.70 estimated
Review
No verdict yet.
The full review
OK. Finished on its own after 55.1 min.
Attempt 2 of 2
Every try of this model in this harness on this prompt, oldest first. This run is the cell's result.
- Attempt 1 OK1m 18s$0.232026-09-30
- Attempt 2 OK this run55m 03s$4.702026-09-30
Scores
AI judge
Not scored
No rubric for this prompt
Visitor votes and reviewer grades are not available yet.
- AI judge
- AI judge: the test runner (model claude-opus-5-5), scoring by visual review of the 1600 px render against the pre-registered rubric. No AI-judge score exists for this result: there is no rubric for this prompt, so no score is shown and none is made up.
- Visitors
- Public voting with a blind reveal is coming: you score the output first, then see the other scores.
- Reviewer
- The reviewer's own grade appears here once it is added.
Scores compare results for the same prompt only. AI-judge boards rank runs within one prompt, equal totals sharing a rank; scores from different prompts are never averaged.
Downloads
Files actually published for this run. Original output, site-made previews and post-run conversions are labelled separately.
The exact prompt
as run, 624 characters. Every result for this prompt
Build a single-page Three.js scene (index.html, no build step, three.js from a pinned CDN or vendored) showing a glossy translucent slime/jelly blob resting on a floor. It must behave as a soft body: clicking or dragging pokes and squishes it, it wobbles and settles with visible jiggle and damping, and it casts a soft contact shadow on the floor. Include subsurface-like translucency, specular highlights, and a small UI to reset and to drop the blob from height. Target 60 fps on a mid-range phone; mobile touch must work. Write everything into the working directory and finish with a short README.md describing controls.
How it was made
Step by step
The prompt, every agent turn and tool call (tool name and a one-line summary; inputs and outputs are not shown), then the final message. The full transcript is 4.4 MB; it is published as a scrubbed, compressed download rather than shown on the page.
Show all 76 steps
Loading the timeline…
Download the full transcript Claude Code session JSONL, 157 KB, gzip. Scrubbed: anything that looks like a key, token, e-mail address or phone number is replaced, and account details and the test machine's file paths are removed.
Cost breakdown
Headline cost $4.70, estimated from the token counts at list price.
| Tokens by type | Tokens | $ per 1M | Cost |
|---|---|---|---|
| Input (uncached) | 122 | $4.00 | $0.0005 |
| Cache write | 180,714 | $5.00 | $0.9036 |
| Cache read | 7,788,602 | $0.20 | $1.5577 |
| Output | 111,764 | $20.00 | $2.2353 |
| of which reasoning | 58,089 | billed as output |
- Total computed from tokens
- $4.6971
- Total reported by the harness
- none
Computed from harness-reported token counts x list prices.
Prices: Project price table (vendor list prices), 2026-09-22.
Run notes
- frozen prompt (written), used verbatim
- plain wave-1-equivalent cc_config copy (settings.json + .claude.json; no ECC files)
- Mode: interactive TUI in tmux (160x48), inside bubblewrap sandbox
- Context setting: 1M ([1m] model name)
- Isolation audit: none