The prompt (verbatim, sent to every lane)
Rewrite this sentence replacing every letter "a" or "A" with the digit 4: A banana always attracts attention.
Live runs are switched off right now — replays (recorded 2026-07-12) are the whole show today.
How scoring works
Exact match: 4 b4n4n4 4lw4ys 4ttr4cts 4ttention. — trailing period required; it's in the source sentence. Failures show a character-level diff. Scoring strips leading/trailing whitespace and one wrapping pair of code fences or quotes before it judges — content over ceremony. Winner rule: correct → cheapest → fastest.
Prices as listed by OpenAI and Anthropic, July 2026. Costs come from provider usage fields × list prices — nothing is invented.
LIVE BUDGET ················ UTC day live runs ··········· switched off today's live spend ········· $0.00 daily cap ··················· $0.50 ──────────────────────────────────── replays ··········· free, unmetered