BuilderBuilder
Measured harness ledgerPublic result
GPT-5.6 Terra

Astra Drift space-flight game — GPT-5.6 Terra Ultra

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

Ultra reasoningHeadline result
Workflow cost
$1.44
Wall-clock
16:51.4 wall-clock
Processed tokens
2.31M processed
Record state
ledger
Public summary

The fastest and lowest-cost space-flight ledger currently in the harness: 16:51.4 wall-clock, 2.31M processed tokens, and a $1.44 API-equivalent estimate.

Visible evidence gaps
  • browser and hardware environment
  • local FPS
  • final capture
  • blind-evaluation record
Tech Review 001 · v1 Builder package

This run belongs to a published immutable package release. Each collection lists its exact prompt, ledger, configuration, export, matrix, manifest, and checksum inventory; missing evidence stays labeled missing.

  • 7 prompts · 28 ledgers · 4 configurations
View Tech Review 001 · v1Return to GPT-5.6 Terra
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