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Measured harness ledgerPublic result
GPT-5.6 Luna

Explorable space-flight game — GPT-5.6 Luna xhigh

Build a responsive browser space-flight game with flight controls, a coherent star-system environment, lighting, assets, and a playable game loop.

xhigh reasoningHeadline result
Workflow cost
$0.33
Wall-clock
10:55.9 wall-clock
Processed tokens
1.20M processed
Record state
partial_token_timing_and_source_ledger
Public summary

GPT-5.6 Luna xhigh partial_token_timing_and_source_ledger ledger: 10:55.9 wall-clock, 1.20M processed, and $0.33 API-equivalent estimate, not a subscription invoice.

Run identity and stack
  • Result ID: space-flight-game-gpt-5.6-luna-xhigh
  • Technical model: gpt-5.6-luna
  • Provider: OpenAI Codex
  • Stack: OpenAI Codex
  • Stack: Technical model/configuration: gpt-5.6-luna
  • Stack: Three.js / Vite game
  • Stack: Generated spaceship assets
  • Stack: Harness v1 space-flight prompt
Cost basis
  • Requests with more than 272,000 input tokens use long-context pricing; all 22 supplied calls were short-context.
  • Separately priced tools and non-token services are excluded.
Primary artifact integrity
  • Kind: threejs-space-flight-game-primary-source
  • Path: artifacts/space-flight-game-gpt-5.6-luna-xhigh/source/src/main.js
  • SHA-256: a5badbbaf62208d01644f8213313da39653d6021d9699e58617c6ced14d7e1f9
Recorded caveats
  • Wall-clock is end-to-end latency, not model-only compute; it includes tool time and idle gaps between user turns.
  • Output tokens include hidden reasoning, visible prose/code, and tool-call JSON.
  • Cached input is deeply discounted, so total processed tokens overstate cost.
  • This is an API-equivalent estimate rather than the actual charge for a subscription-backed Codex session.
  • Separately priced tools and non-token services are excluded.
  • Cache-creation tokens are zero because the Codex transcript schema does not expose a cache-write field.
  • Subagent logs are excluded to avoid double-counting inherited parent context.
Visible evidence gaps
  • browser and hardware environment
  • local FPS
  • final capture
  • blind-evaluation record
Builder test available

This result is part of a Builder test. Open it for the exact prompt and any released projects, RemakeBench Harness workflows and production skills. Public proof and known evidence gaps stay visible here.

  • Tech Review 001 · v1
View Tech Review 001 · v1Return to GPT-5.6 Luna
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