GLM-5.3 in OpenCode 1.18.32
skills off
Wall time 48m 32sCost $3.46 reported9.5/10 · Draft score — AI judge
Review
Tidy autumn town on a big checkerboard slab: about 30 buildings (town hall with clock, clock tower, windmill on a raised hill, half-timbered inn, market stalls with striped awnings, townhouses, cabins, a barn) from a 41-symbol sprite sheet, a real road grid with dashed centre lines, a winding river with a plank bridge and a stone bridge, boats, a fountain plaza, lamp posts, and orange/red/green trees on a warm sunset sky. Z-ordering is correct. Small flaws: two buildings carry odd translucent cyan boxes at their base, and one building sits partly in the river.
Verdict by the AI judge (provisional).
The full review
OK. Finished on its own after 48.5 min and produced town.svg.
Bugs
- translucent cyan boxes at the base of two buildings
- one building overlaps the river
Scores
AI judge
9.5/10
Draft score — AI judge
Visitor votes and reviewer grades are not available yet.
| Criterion | Marks |
|---|---|
| sprite sheet | 2 |
| iso grid + z-order | 2 |
| roads/trees/river/bridge | 2 |
| theme | 2 |
| craft | 1.5 |
| Total (sum of the marks) | 9.5 / 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), 401 characters. Every result for this prompt
Create an isometric SVG town: first design a small sprite sheet of distinct buildings (in <defs>), then place 20+ of them on an isometric grid with roads, trees, a river and a bridge. Pick your own theme and palette. Save it as town.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
10 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 machine-format transcript is published as a scrubbed download.
Show all 131 steps
Loading the timeline…
Download the full transcript OpenCode session export, 833 KB. 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 $3.46, as reported by OpenCode (its own bill for the run). The list-price estimate from the token counts is $3.46.
| Tokens by type | Tokens | $ per 1M | Cost |
|---|---|---|---|
| Input (uncached) | 378,238 | $1.40 | $0.5295 |
| Cache write | 0 | $0.00 | $0 |
| Cache read | 7,827,398 | $0.26 | $2.0351 |
| Output | 45,135 | $4.40 | $0.1986 |
| reasoning | 158,976 | $4.40 | $0.6995 |
- Total computed from tokens
- $3.4627
- Total reported by the harness
- $3.4627
- Difference
- computed 2.7633 vs harness 3.4627
Tokens from OpenCode per-message usage; harness total = sum of OpenCode per-message cost. OpenCode reports reasoning separately; both bill at the output rate (output line here = output only, see reasoning).
Prices: Fireworks GLM-5.3 serverless price (STATE.md 22:42Z; same as the OpenCode/models.dev catalog entry fireworks-ai/glm-5p3), 2026-09-23.
Run notes
- Mode: interactive TUI in tmux (160x48), inside bubblewrap sandbox
- Isolation: bwrap: private /tmp and /run, private PID ns; only this run dir, harness binaries (ro), opencode config, /usr, /etc bound; HOME/TMPDIR/XDG data private; the project files and other runs not mounted