Claude Opus 5.5 in Claude Code 2.1.280
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Wall time 1h 11mCost $13.53 reported8.5/10 · Draft score — AI judge
Review
A genuinely painterly night scene: it wrote its own brush-stroke painter that lays thousands of stroke paths over a reference it drew in SVG first, so the whole thing reads like an oil sketch.
The full review
A genuinely painterly night scene: it wrote its own brush-stroke painter that lays thousands of stroke paths over a reference it drew in SVG first, so the whole thing reads like an oil sketch. A full moon on a torn cloud bank, a long glittering moon path on the water, surf exploding against a dark headland, rain streaks, a red-and-white lighthouse with a warm-windowed cottage, and even a tiny schooner on the horizon. The strongest mood in the row so far.
Verdict by the AI judge (provisional).
OK. Finished on its own after 71.6 min and produced lighthouse.svg.
Attempt 1 of 2
Every try of this model in this harness on this prompt, oldest first. A later attempt is the cell's result: attempt 2.
- Attempt 1 OK this run1h 11m$13.532026-09-23
- Attempt 2 OK the cell's result1h 15m$12.022026-09-29
Bugs
- Lighthouse is small in frame and its gallery barely reads
- Beam is a flat horizontal smear rather than a cone cutting through the rain
- Visible blocky stroke tiling in the sky and sea at full size
- 2.1 MB SVG (thousands of stroke paths)
Scores
AI judge
8.5/10
Draft score — AI judge
Visitor votes and reviewer grades are not available yet.
| Criterion | Marks |
|---|---|
| lighthouse | 1.5 |
| stormy sea + moonlight | 2 |
| beam through rain/mist | 1.5 |
| atmosphere | 2 |
| craft | 1.5 |
| Total (sum of the marks) | 8.5 / 10 |
- 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. A draft score until the reviewer checks it. Rubric: Wave-1 SVG scoring rubric (AI Model Reviewer).
- 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
agentic harness (save the file; self-render allowed), 378 characters. Every result for this prompt
Create an SVG of a lighthouse on a rocky headland at night: stormy sea, the lighthouse beam cutting through rain and mist, moonlight on the waves, as atmospheric and painterly as you can. Save it as lighthouse.svg in the current directory. You may render and inspect your own output (headless chromium is available at /usr/bin/chromium) and iterate on your own before finishing.
How it was made
Versions saved during the run
5 intermediate outputs, in the order the model wrote them.
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 46.7 MB; it is published as a scrubbed, compressed download rather than shown on the page.
Show all 172 steps
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Download the full transcript Claude Code session JSONL, 261 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 $13.53, as reported by Claude Code (its own bill for the run). The list-price estimate from the token counts is $13.53.
| Tokens by type | Tokens | $ per 1M | Cost |
|---|---|---|---|
| Input (uncached) | 206 | $4.00 | $0.0008 |
| Cache write | 405,753 | $5.00 | $2.0288 |
| Cache read | 29,070,773 | $0.20 | $5.8142 |
| Output | 284,196 | $20.00 | $5.6839 |
| of which reasoning | not recorded | billed as output |
- Total computed from tokens
- $13.53
- Total reported by the harness
- $13.53
- Difference
- matches
Tokens summed from the Claude Code session JSONL (per message id, incl. subagent files); harness total from /cost.
Prices: Project price table (vendor list prices); cache write 1.25x input, 2026-09-22.
Run notes
- Mode: interactive TUI in tmux (160x48), inside bubblewrap sandbox
- Isolation: bwrap: private /tmp, HOME and TMPDIR inside run dir, own CLAUDE_CONFIG_DIR/CODEX_HOME copy; the project files, other runs, /tmp/hx_* not mounted