Measured harness ledgerPublic result
Claude Opus 5.5CARVE — Claude Opus 5.5 Max
Build a playable Babylon.js WebGPU snowboarding game with the supplied rider asset, carved terrain, tricks, obstacles, audio, and a complete downhill run.
Max reasoningHeadline result
- Workflow cost
- $57.68
- Wall-clock
- Not recorded
- Processed tokens
- Not recorded
- Record state
- partial_gameplay_no_finish_and_asset_judge_fail
Public summary
Claude Opus 5.5 Max partial_gameplay_no_finish_and_asset_judge_fail ledger: Not recorded wall-clock, Not recorded, and $57.68 Independently recomputed API-equivalent cost.
Run identity and stack
- Result ID: carve-webgpu-snowboarding-opus-5.5-max
- Technical model: Claude Opus 5.5
- Provider: Anthropic
- Client: Claude Code CLI 2.1.280
- Stack: Anthropic
- Stack: Claude Code CLI 2.1.280
- Stack: Technical model/configuration: Claude Opus 5.5
- Stack: Babylon.js WebGPU
- Stack: Supplied snowboarder fixture
- Stack: Harness v1 CARVE prompt
Recorded caveats
- No finish was reached; finish summary and restart are unverified.
- No race infrastructure or trees were placed; the one exported spruce was not instanced and failed the independent asset judge.
- The original exact operator metrics parser repeated usage objects per content block and excluded subagents, so its raw cost is inflated.
- The published corrected cost is a list-price API-equivalent estimate, not a subscription invoice.
- At 1080p on an M1 Pro, seven of 126 2-second FPS samples fell below 55, and GPU timestamp queries were unusable.
Public result only
This result keeps its public summary and evidence, but it does not currently have a matching Builder test with prompts, projects, Harness workflows or skills.