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GPT-6 Astra in OpenCode 1.18.32

skills on · OpenCode 1.18.32 + default skills kitKit: default (46 web/Three.js/QA + 33 video) · 79 skills installed; skill use not recorded

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Poster frame of GPT-6 Astra's page
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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. Tap inside for sound.

OKMarathon resultsmax effortNeutral harness

Wall time 31m 49sCost $5.60 reported

Review

No verdict yet.

The full review

OK. Finished on its own after 31.8 min.

Scores

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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.
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The exact prompt

as run, 4,717 characters. Every result for this prompt

Build an interactive race results dashboard for a city marathon from the exact dataset below (CSV: one row per finisher with bib number, running club, gender, age, and cumulative split times at 10 km, 21.1 km, 30 km and the finish, as h:mm:ss). Embed the data in the page verbatim and compute every number from it; do not invent or alter any value.

bib,club,gender,age,split_10k,split_21k,split_30k,finish
101,Trail Foxes,M,42,0:38:49,1:23:18,2:00:42,2:53:35
102,Hill Striders,M,31,0:56:17,2:00:23,2:54:35,4:08:29
103,Trail Foxes,F,32,0:53:48,1:57:22,2:48:26,3:59:47
104,Harbour Harriers,F,34,0:38:43,1:22:03,1:58:26,2:50:16
105,Unattached,M,63,0:49:28,1:47:17,2:35:54,3:41:18
106,Harbour Harriers,F,47,0:43:01,1:33:33,2:15:02,3:10:08
107,Riverside RC,F,46,0:57:12,2:01:54,2:56:06,4:11:08
108,Hill Striders,F,65,0:58:44,2:04:07,2:59:04,4:14:16
109,Trail Foxes,M,23,0:47:00,1:41:05,2:27:59,3:33:42
110,Riverside RC,F,33,0:38:05,1:22:31,1:58:42,2:47:09
111,Hill Striders,F,24,0:49:32,1:46:25,2:33:20,3:36:35
112,Riverside RC,M,31,0:40:53,1:25:55,2:04:02,2:56:05
113,Hill Striders,F,23,0:59:57,2:07:30,3:05:48,4:24:21
114,Hill Striders,F,56,0:43:40,1:31:52,2:12:51,3:08:42
115,Night Owls,F,27,1:04:18,2:16:58,3:17:51,4:43:11
116,Trail Foxes,F,32,0:52:37,1:53:05,2:43:31,3:50:54
117,Riverside RC,F,61,0:58:21,2:06:34,3:03:57,4:21:53
118,Night Owls,M,56,1:09:04,2:29:52,3:35:02,5:03:19
119,Trail Foxes,F,41,0:51:51,1:50:44,2:39:58,3:48:28
120,Trail Foxes,M,46,0:50:39,1:47:19,2:33:58,3:37:12
121,Unattached,F,23,0:43:04,1:31:38,2:12:22,3:09:08
122,Night Owls,M,23,1:02:58,2:15:44,3:15:51,4:35:10
123,Harbour Harriers,M,20,1:00:07,2:08:57,3:05:52,4:23:52
124,Hill Striders,M,43,1:01:59,2:11:47,3:11:33,4:34:11
125,Riverside RC,F,22,0:50:26,1:48:00,2:33:34,3:36:33
126,Trail Foxes,F,39,0:58:33,2:04:49,3:00:44,4:19:12
127,Trail Foxes,M,46,0:54:21,1:56:35,2:45:20,3:52:00
128,Night Owls,F,64,0:45:32,1:37:06,2:21:19,3:22:05
129,Night Owls,M,65,1:11:26,2:30:42,3:41:16,5:16:12
130,Night Owls,M,52,0:49:55,1:45:53,2:31:22,3:31:47
131,Night Owls,M,60,1:03:35,2:15:31,3:13:10,4:33:22
132,Harbour Harriers,F,55,0:48:01,1:42:09,2:27:37,3:29:17
133,Riverside RC,M,43,1:00:00,2:10:39,3:06:46,4:24:18
134,Harbour Harriers,M,65,1:03:38,2:17:14,3:18:32,4:39:33
135,Trail Foxes,M,19,0:41:42,1:29:20,2:09:13,3:04:28
136,Unattached,F,47,1:08:22,2:25:56,3:30:25,4:56:39
137,Hill Striders,F,27,0:48:32,1:43:43,2:29:29,3:34:35
138,Riverside RC,F,35,0:37:55,1:20:58,1:58:03,2:49:59
139,Hill Striders,F,24,1:00:43,2:10:31,3:11:15,4:35:15
140,Harbour Harriers,F,67,0:52:15,1:52:16,2:45:10,3:58:17
141,Riverside RC,F,40,0:43:29,1:32:31,2:14:14,3:11:05
142,Unattached,M,31,0:57:26,2:02:30,2:58:16,4:18:08
143,Unattached,F,30,0:53:17,1:51:21,2:41:12,3:50:40
144,Hill Striders,F,28,0:44:48,1:37:12,2:20:19,3:19:02
145,Trail Foxes,F,34,0:42:36,1:31:24,2:10:59,3:03:51
146,Harbour Harriers,F,56,0:41:36,1:28:29,2:09:20,3:08:14
147,Unattached,F,57,0:52:02,1:49:55,2:40:54,3:53:11
148,Night Owls,F,56,0:45:58,1:36:48,2:18:55,3:15:52

The dashboard needs: a sortable, searchable results table with overall place, gender place, age group (under 30, 30-39, 40-49, 50-59, 60 and over), finish time and average pace per km; KPI cards for finishers, winning time, first woman, median finish time and the number of negative splits (second half faster than the first); a finish-time histogram with five-minute bins; a pace chart showing every runner's pace per segment as faint lines with the selected runner highlighted; a 'race replay' visual where every runner is a dot moving along a stylised course in proportion to their splits, with a time scrubber and leaderboard; club and age-group comparison bars; filters by gender, age group and club that update everything; and hover or tap details for any runner. Make it feel like a premium sports-broadcast graphic. So the page is alive without input, on load it plays the race replay from the gun to the last finisher on a loop with the leaderboard updating, then highlights the winner, the first woman and the runner with the strongest negative split in turn, forever, until the user touches a control.

Save it as index.html in the current directory: one self-contained file with inline CSS and JavaScript only, no libraries or frameworks, and no external requests of any kind (no CDNs, web fonts, images or audio files). It must work when opened directly from disk, fit any window from a 390 px wide phone to a desktop, and run without console errors. You may serve it locally and open it in headless chromium (/usr/bin/chromium, software WebGL, no GPU) to screenshot and inspect your own output, and iterate on your own before finishing. Close any browser you open as soon as you've taken your screenshot.

How it was made

Wall time 31m 49sFirst artifact at 14m 30s7 saved versions

Versions saved during the run

7 intermediate outputs, in the order the model wrote them.

No transcript was delivered with this result.

Cost breakdown

Headline cost $5.60, as reported by OpenCode (its own bill for the run). The list-price estimate from the token counts is $5.39.

Tokens by typeTokens$ per 1MCost
Input (uncached)105$10.00$0.0010
Cache write84,595$10.00$0.8459
Cache read2,175,931$1.00$2.1759
Output47,278$50.00$2.3639
of which reasoning11,019billed as output
Total computed from tokens
$5.3868
Total reported by the harness
$5.5983
Difference
Harness-reported $5.5983 vs list-price estimate $5.3868 (-3.8%); the harness figure is the headline.

OpenCode 1.18.32 reported its own total; token counts x list prices shown beside it. Cache writes priced at the input rate (the price table has no separate cache-write price). The harness reports reasoning tokens separately from output; here output includes them (36,259 visible + 11,019 reasoning), and both bill at the output rate.

Prices: Project price table (vendor list prices), 2026-09-22.

Run notes

one prompt, agentic harness (self-review allowed)

  • frozen prompt (written): written 2026-10-05 for the MR category expansion (owner request: 500 finished runs in every category); category data_dashboards; zero results
  • plain OpenCode config copy (providers only; no ECC instructions/agents)
  • default skills on: 79 skills in this run's xdg/config/opencode/skills
  • opencode export written to a file (not piped)
  • Mode: interactive TUI in tmux (160x48), inside bubblewrap sandbox
  • Isolation audit: outside paths seen
  • Renderer: inline SVG (first <svg> at index.html line 33) in one self-contained HTML file; no libraries, no CDN, no external assets. No WebGPU or WebGL needed.
  • Card video: the run's own video.mp4 (H.264 yuv420p, unchanged). Poster: the run's own render.png.
  • Same frozen prompt as the other rows on this test; configurations differ and all rows are unscored, so this is not a head-to-head result.