Touchstone Assay
Dated SIU — 2026-09-25
$0.0111
Dated SIU over time
A falling line is normal and expected: one SIU always buys the same work, so a falling line means inference got cheaper, not that the measurement is drifting.
final provisional superseded recomputed from signed basket costs — derived, not the canonical published figure
Days a scheduled run failed to produce a print:
Registry changes reflected in this series:
- 02 Sep 2026 — admitted claude-sonnet-5, gpt-5.1, gemini-3.1-pro-preview, claude-haiku-4-5, gpt-5.4-mini
- 09 Sep 2026 — admitted claude-sonnet-5, grok-4.6, claude-haiku-4-5