Claude Opus 5.5highin Claude CodeAstronomical clock
Running live
OPEN FULL SCREEN ↗
Open it running ↗This is the exact file the model wrote, unedited, served from an isolated domain with the network blocked, as in the test.
What the robot did
The comparison clip (the same script for every model)
Checks
14/14Written from the prompt (test v1, checks v1). The model never saw them.
- ✓Opens without a page error
- ✓Test hooks present (clock face, three hands, getState)
- ✓Hands show the right time (Oct 9, 14:37:21, New York)hour 78.7° (esperado 78.7°) · minute 224.1° (esperado 224.1°) · second 126.0° (esperado 126.0°)
- ✓Reported time is righttime=14:37:21 (esperado 14:37:21)
- ✓Sunrise and sunset in New York (±4 min)nascer 07:01 (ref. 07:01) · pôr 18:25 (ref. 18:25)
- ✓Moon phase and illumination (±4 points)0.009 'new moon' (ref. 0.009, aceita ['new moon', 'waning crescent'])
- ✓After 61 s, the hands moved correctlyhour 79.2° (esperado 79.2°) · minute 230.2° (esperado 230.2°) · second 132.0° (esperado 132.0°)
- ✓Second date (Dec 21): handshour 243.1° (esperado 243.1°) · minute 37.0° (esperado 37.0°) · second 60.0° (esperado 60.0°)
- ✓Second date: reported timetime=08:06:10 (esperado 08:06:10)
- ✓Second date: sunrise and sunsetnascer 07:17 (ref. 07:17) · pôr 16:32 (ref. 16:32)
- ✓Second date: moon0.906 'waxing gibbous' (ref. 0.908, aceita ['waxing gibbous'])
- ✓No uncaught exception during the session
- ✓No console errors
- ✓No network attempts
The record
DOWNLOAD JSON ↓- Model
- Claude Opus 5.5
claude-opus-5-5 - Reasoning effort
- high
- Started
- Oct 10, 20:05 UTC
- Harness
- Claude Code 2.1.296, by Anthropic (not ours) · one shot · tools used: 0
- Harness settings
- print mode, safe mode, every tool off (--tools ""), no saved session, empty folder outside Git ·
CLAUDE_CODE_MAX_OUTPUT_TOKENS=128000· time limit 60 min - Tokens
- in 2 · cache read 1,454 · out 62,649 · reasoning 43,300 · requests 1
- Cost
- $1.26 API-equivalent · extra spend $0 (subscription)
- Test
- Astronomical clock v1 · checks v1 · prompt
ea841e16fa5c - Output file
- 36.5 KB · sha256
18643e3f07c9 - Run id
20261010T200531Z_relogio-v1_opus-high_r1