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Measured harness ledgerPublic result
Gemini 3.8 Flash

Dex Cube Turn — Gemini 3.8 Flash High

Turn one face of a Rubik's cube a quarter turn by finger contact with two dexterous hands in MuJoCo.

High reasoningHeadline result
Workflow cost
$4.18
Wall-clock
15m 35s wall-clock
Processed tokens
15.36M processed
Record state
judge_pass_independently_replayed
Public summary

Gemini 3.8 Flash High judge_pass_independently_replayed ledger: 15m 35s wall-clock, 15.36M processed, and $4.18 API-equivalent list price, not a marginal subscription cash charge.

Run identity and stack
  • Result ID: dex-cube-turn-mujoco-gemini-3.8-flash-high-antigravity-2026-09-16
  • Technical model: Gemini 3.8 Flash
  • Provider: Google Antigravity
  • Client: Antigravity CLI 1.1.5 (headless print mode)
  • Stack: Google Antigravity
  • Stack: Antigravity CLI 1.1.5 (headless print mode)
  • Stack: Technical model/configuration: Gemini 3.8 Flash
  • Stack: MuJoCo dexterous-hand fixture
  • Stack: Harness cube-turn prompt
  • Stack: Requested tool profile: python-mujoco-headless
Cost basis
  • actual marginal subscription charge usd: $0.00 USD.
  • Introductory 2026 API-equivalent alternative: $2.09.
Primary artifact integrity
  • Kind: open-loop-1khz-actuator-log
  • Path: artifacts/dex-cube-turn-mujoco-gemini-3.8-flash-high-antigravity-2026-09-16/evidence/model-supplied/ctrl.npy
  • SHA-256: 2cbf060724684d873f353b5d7d905b625899739befa9c9ea0a7bbc86fb92a26a
Validation evidence
  • Result: pass
  • Path: artifacts/dex-cube-turn-mujoco-gemini-3.8-flash-high-antigravity-2026-09-16/validation/judge-replay.public.json
  • SHA-256: 3045bba5c6cdd7bbb02fece581d848072d05f830cc0022bd033c13bb528c21c6
  • Validator SHA-256: 093ca8eb700eebb10c37947d2ad1f18019cf13988ac0b00a2c5c40090b09348d
Recorded caveats
  • The judge measures task completion only; there is no visual quality or blind evaluation for this task.
  • Wall-clock includes tools, simulation and judge runs, and idle gaps; it is not model-only compute.
  • Cost is API-equivalent on two published bases (introductory 2026 and standard); the subscription's marginal charge was $0 and print mode exposes no quota delta.
  • This run used the newer gemini-3.8-flash-high model in headless print mode rather than the operator's frozen Gemini 3.6 Flash TUI stack; disclosed as a stack deviation.
  • The conversation id is withheld per precedent; raw receipts, the stream-json transcript, the CLI log and the conversation database are committed by hash only; provenance/run-notes.md and the sim-attempt records are sanitized copies (conversation id and workspace paths replaced).
  • This is the first run on fixture revision v1.1 (attempt archiving only); verdicts remain comparable with the five v1 runs, which have no judge attempt archives.
  • Both fail attempts before the pass and the harness's own probe are preserved with clips; attempt ctrl logs are not archived because 003-005 equal the submission and 001-002 are a too-short and a hold-only log.
Visible evidence gaps
  • hardware and interpreter receipt from the solver session (only the operator's replay environment is recorded)
  • /usage quota delta (unavailable in print mode)
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.

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