GPT-6.1 Sol (effort default (no reasoning-effort override) · thinking on) on Animated fireplace in one self-contained HTML file
OGPT-6.1 Soldefault · thinking on · Codex CLI 0.163.0 (codex exec --json) · cloud · 2026-10-20 · by @bobsiopener
- Estimated cost
- $0.06
- Wall time
- 60s
- Human step-ins
- 0
- Outcome
- Pass
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Summary
Exact prompt
# Animated fireplace in one self-contained HTML file Make a cosy animated fireplace: flickering flames, embers, glow, whatever you like. Style, colours and technique (CSS, SVG, canvas) are up to you. **Looks are not scored**; only the objective checks below are. Write one file, `fireplace.html`, in the working directory. ## Checks (all must pass; partial credit = fraction passed) 1. `file_exists_under_size_limit`: `fireplace.html` exists and is at most 100,000 bytes (100 KB). 2. `no_external_requests`: fully self-contained. No `http://`, `https://` or `//` URLs in `src`, `href`, `srcset`, `poster`, `action`, `data` or `url()`, no asset URLs anywhere, no `@import`, `fetch(`, `XMLHttpRequest`, `WebSocket`, `EventSource`, `sendBeacon`, JS `import`, `<script src>` or `<link href>` (inline everything; `data:` URIs are fine). When a browser is used, any non-file request the page attempts also fails this check. 3. `animation_present`: CSS `@keyframes` plus an `animation`/`animation-name` property, or `requestAnimationFrame(` / `setInterval(`. 4. `loops_forever`: an `infinite` CSS animation (`animation-iteration-count: infinite` or `infinite` in the `animation` shorthand), or rAF/`setInterval` with no `cancelAnimationFrame`/`clearInterval` anywhere; when a browser is used, the page must also still change between ~6 s and ~7 s after load. 5. `page_animates`: when a headless Chrome/Chromium is available, the page is opened once with the network blocked at 800x600, and screenshots at ~1.5 s and ~2.5 s after load must differ. Without a browser (or if it fails to start) this and the browser part of check 4 fall back to the static checks 3-4; the scorer reports `check_mode` (`headless-browser` or `static-fallback`). 6. `required_id_and_title`: an element with `id="fireplace"` and a `<title>` containing "Fireplace" (case-insensitive). No other files, no build step, no network. Run time limit for scoring: 120 s.
Objective only: self-containment under a network block, a real looping animation verified by screenshots in one page session, size limit, and a required id/title. Aesthetics are deliberately unscored (public poll judges looks). Original benchmark task written for usecaserank.com. Headless, offline run on a reproducible fixture. Cost shown is a list-price API-equivalent estimate (run on a ChatGPT subscription, not billed).
Success criteria: 1. file_exists_under_size_limit 2. no_external_requests 3. animation_present 4. loops_forever 5. page_animates 6. required_id_and_title
Setup notes: Batch 11 case l02-fireplace (offline, open-ended creative brief). Prepared with batch11/prepare.sh on the shared box; only TASK.md + starting files were copied to the agent machine, hidden key/tests stayed on the box. Prompt = TASK.md verbatim on stdin. Flags: --json -s workspace-write --skip-git-repo-check --ephemeral --ignore-user-config --ignore-rules -C <workdir>. Scored on the box with the case scorer: `python score.py WORKDIR KEYDIR`. Single run, no retries. A global user-level AGENTS.md was present on the agent machine and may have been in context. Scorer ran in headless-browser mode (Chrome over a CDP pipe, network blocked). The served model id is not echoed in the event log. Output rendered offline with batch11/render.py (network blocked): PNG 1280x800 at ~3 s after load; MP4 1280x720 H.264 ~6 s. Serving model not confirmed: requested via -m; the event log does not echo the serving model id. Price source is secondary (pricing.json verification='secondary', https://www.actuia.com/en/news/ai-api-pricing-in-october-2026-050-to-50-for-output/), not an official OpenAI price page. Score: 6/6. Cost is an ESTIMATE: measured tokens x pricing.json list price (ChatGPT plan, nothing billed); input_tokens include cached reads; output_tokens include reasoning tokens. Tool calls 4 (3 failed, recovered). Single run.
Estimated cost List-price estimate; not actually billed.
Output
Metrics
- Estimated cost
- $0.06
- Wall time
- 60s
- Human step-ins
- 0
- Turns
- 1
| Model | Input tok | Output tok | Cost |
|---|---|---|---|
| OGPT-6.1 Solopenai/gpt-6.1-soleffort default (no reasoning-effort override) · thinking on | 84,305 | 2,660 | $0.06 |
Reproduce this run
- Use the use case prompt on the use case page.
- Same setup: GPT-6.1 Sol (openai/gpt-6.1-sol, effort default (no reasoning-effort override) · thinking on) via
Codex CLI 0.163.0 (codex exec --json), cloud. - It counts as a success only if it meets every success criterion: 1. file_exists_under_size_limit 2. no_external_requests 3. animation_present 4. loops_forever 5. page_animates 6. required_id_and_title
- Log model, tokens, wall time, human step-ins and the evidence log, then submit it as a reproduction. A different model? Submit a head-to-head rerun.
How runs are scored: Methodology.
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Automated checks
Trust 80% comes from these checks (how Trust % works).
- Run date is not in the future : passed
- Model is in the dated pricing table : passed
- Cost recomputed from tokens matches : passed
- Cached tokens are consistent : passed
- Output throughput is plausible : passed
- Autonomy matches step-ins : passed
- Step-ins do not exceed turns : passed
- Retries agree with first-try result : passed
- Evidence log SHA-256 matches : passed
- Evidence log is substantial : passed
Evidence log
{"type": "thread.started", "thread_id": "01a1580c-1521-7090-b04c-179d0492463e"}
{"type": "turn.started"}
{"type": "item.completed", "item": {"id": "item_0", "type": "agent_message", "text": "I\u2019ll create a self-contained HTML fireplace with continuously animated flames, embers, and glow, then check it against the requirements."}}
{"type": "item.started", "item": {"id": "item_1", "type": "command_execution", "command": "/bin/bash -lc 'pwd && rg --files -g AGENTS.md -g fireplace.html -g package.json'", "aggregated_output": "", "exit_code": null, "status": "in_progress"}}
{"type": "item.completed", "item": {"id": "item_1", "type": "command_execution", "command": "/bin/bash -lc 'pwd && rg --files -g AGENTS.md -g fireplace.html -g package.json'", "aggregated_output": "/home/bob/usecase-runs/batch/out/gpt-6.1-sol/l02/work\n", "exit_code": 1, "status": "failed"}}
{"type": "item.started", "item": {"id": "item_2", "type": "file_change", "changes": [{"path": "/home/bob/usecase-runs/batch/out/gpt-6.1-sol/l02/work/fireplace.html", "kind": "add"}], "status": "in_progress"}}
{"type": "item.completed", "item": {"id": "item_2", "type": "file_change", "changes": [{"path": "/home/bob/usecase-runs/batch/out/gpt-6.1-sol/l02/work/fireplace.html", "kind": "add"}], "status": "completed"}}
{"type": "item.started", "item": {"id": "item_3", "type": "command_execution", "command": "/bin/bash -lc \"python - <<'PY'\nfrom pathlib import Path\nimport re, shutil\np=Path('fireplace.html'); s=p.read_text()\nassert p.stat().st_size <= 100000\nassert 'id=\\\"fireplace\\\"' in s and re.search(r'<title>[\"'^<]*fireplace'\"', s, re.I)\nassert '@keyframes' in s and 'animation:' in s and 'infinite' in s\nassert not re.search(r'https?://|url\\\\(|@import|fetch\\\\(|XMLHttpRequest|WebSocket|EventSource|sendBeacon|<script|<link',s,re.I)\nprint(f'Static checks passed; {p.stat().st_size:,} bytes.')\nprint('Browser available:', next((x for x in ['chromium','chromium-browser','google-chrome'] if shutil.which(x)), 'none'))\nPY\"", "aggregated_output": "", "exit_code": null, "status": "in_progress"}}
{"type": "item.completed", "item": {"id": "item_3", "type": "command_execution", "command": "/bin/bash -lc \"python - <<'PY'\nfrom pathlib import Path\nimport re, shutil\np=Path('fireplace.html'); s=p.read_text()\nassert p.stat().st_size <= 100000\nassert 'id=\\\"fireplace\\\"' in s and re.search(r'<title>[\"'^<]*fireplace'\"', s, re.I)\nassert '@keyframes' in s and 'animation:' in s and 'infinite' in s\nassert not re.search(r'https?://|url\\\\(|@import|fetch\\\\(|XMLHttpRequest|WebSocket|EventSource|sendBeacon|<script|<link',s,re.I)\nprint(f'Static checks passed; {p.stat().st_size:,} bytes.')\nprint('Browser available:', next((x for x in ['chromium','chromium-browser','google-chrome'] if shutil.which(x)), 'none'))\nPY\"", "aggregated_output": "/bin/bash: line 1: python: command not found\n", "exit_code": 127, "status": "failed"}}
{"type": "item.started", "item": {"id": "item_4", "type": "command_execution", "command": "/bin/bash -lc \"python3 - <<'PY'\nfrom pathlib import Path\nimport re, shutil\np=Path('fireplace.html'); s=p.read_text()\nassert p.stat().st_size <= 100000\nassert 'id=\\\"fireplace\\\"' in s and re.search(r'<title>[\"'^<]*fireplace'\"', s, re.I)\nassert '@keyframes' in s and 'animation:' in s and 'infinite' in s\nassert not re.search(r'https?://|url\\\\(|@import|fetch\\\\(|XMLHttpRequest|WebSocket|EventSource|sendBeacon|<script|<link',s,re.I)\nprint(f'Static checks passed; {p.stat().st_size:,} bytes.')\nprint('Browser available:', next((x for x in ['chromium','chromium-browser','google-chrome'] if shutil.which(x)), 'none'))\nPY\"", "aggregated_output": "", "exit_code": null, "status": "in_progress"}}
{"type": "item.completed", "item": {"id": "item_4", "type": "command_execution", "command": "/bin/bash -lc \"python3 - <<'PY'\nfrom pathlib import Path\nimport re, shutil\np=Path('fireplace.html'); s=p.read_text()\nassert p.stat().st_size <= 100000\nassert 'id=\\\"fireplace\\\"' in s and re.search(r'<title>[\"'^<]*fireplace'\"', s, re.I)\nassert '@keyframes' in s and 'animation:' in s and 'infinite' in s\nassert not re.search(r'https?://|url\\\\(|@import|fetch\\\\(|XMLHttpRequest|WebSocket|EventSource|sendBeacon|<script|<link',s,re.I)\nprint(f'Static checks passed; {p.stat().st_size:,} bytes.')\nprint('Browser available:', next((x for x in ['chromium','chromium-browser','google-chrome'] if shutil.which(x)), 'none'))\nPY\"", "aggregated_output": "Static checks passed; 4,878 bytes.\nBrowser available: google-chrome\n", "exit_code": 0, "status": "completed"}}
{"type": "item.started", "item": {"id": "item_5", "type": "command_execution", "command": "/bin/bash -lc \"google-chrome --headless --no-sandbox --disable-gpu --disable-background-networking --no-proxy-server --host-resolver-rules='MAP * ~NOTFOUND' --screenshot=/tmp/fireplace-check.png --window-size=800,600 --virtual-time-budget=2500 file:///home/bob/usecase-runs/batch/out/gpt-6.1-sol/l02/work/fireplace.html\"", "aggregated_output": "", "exit_code": null, "status": "in_progress"}}
{"type": "item.completed", "item": {"id": "item_5", "type": "command_execution", "command": "/bin/bash -lc \"google-chrome --headless --no-sandbox --disable-gpu --disable-background-networking --no-proxy-server --host-resolver-rules='MAP * ~NOTFOUND' --screenshot=/tmp/fireplace-check.png --window-size=800,600 --virtual-time-budget=2500 file:///home/bob/usecase-runs/batch/out/gpt-6.1-sol/l02/work/fireplace.html\"", "aggregated_output": "[1020/024325.932243:ERROR:chrome/app/chrome_main.cc:242] Failed to create a unique user data directory for headless.\n", "exit_code": 1, "status": "failed"}}
{"type": "item.completed", "item": {"id": "item_6", "type": "agent_message", "text": "Created [fireplace.html](fireplace.html) with continuously flickering flames, embers, and glow.\n\nStatic checks pass; file size is 4,878 bytes with no external assets. Browser verification was unavailable because Chrome failed to start."}}
{"type": "turn.completed", "usage": {"input_tokens": 84305, "cached_input_tokens": 69376, "cache_write_input_tokens": 0, "output_tokens": 2660, "reasoning_output_tokens": 22}}