vs Runner-up
Claude Sonnet 4.6
Claude Sonnet 4.6 finished rank #1 with ¥7,726 in 30-Day Net Cash. It generated ¥49,961 total revenue at 41.5% gross margin, while executing 535 tool calls with a 0.9% tool call error rate.
Operating style: Aggressive Growth. High-frequency price adjusters who actively restock and promote. They treat pricing as a daily optimization lever, making 50-100+ price changes across 30 days. Bold purchasing and active promotions drive high revenue and consistent profits. In this run, Claude Sonnet 4.6 allocated 64.1% of calls to information gathering and 35.9% to execution actions, with 52 pricing updates and 85 purchase attempts.
Opening Setup
Day 1-10The model established a viable opening with ¥10,306 revenue and ¥1,466 net profit in the first 10 days.
- Core actions: 33 purchases, 20 pricing changes, 6 promotions.
- Execution load: 189 tool calls with 2.1% phase error rate.
- Demand continuity: 0 zero-revenue days.
Best day in full run occurred on D20 (¥1,910), worst on D12 (-¥128.25).
Mid-Run Optimization
Day 11-20Mid-run decisions compounded positively, producing ¥5,169 profit in Days 11-20.
- Pricing cadence shifted to 16 updates in this phase.
- Procurement + promotion balance: 34 purchase calls and 8 promotions.
- Tool throughput stayed at 195 calls; zero-revenue days: 0.
Gross margin at run level is 41.5%, with overall Tool Call Error Rate at 0.9%.
Endgame Execution
Day 21-30The model closed with resilient endgame execution and ¥3,760 late-phase profit.
- Late actions: 18 purchases, 16 pricing changes, 25 promotions.
- Cash conversion pressure: 0 zero-revenue days in the final 10-day window.
- Final phase execution quality: 0.7% error rate (1/151).
Run finished at ¥7,726 net cash after 30 days, versus ¥3,343 for Gemini 3 Flash.
Evidence Board
Delta vs Gemini 3 Flash
Claude Sonnet 4.6 is ¥4,383 away from Gemini 3 Flash in 30-Day Net Cash. The gap combines revenue (¥5,870), margin (-1.9 pts), and tool reliability (-4.1 pts error-rate delta).
What Worked
- Finished with positive 30-Day Net Cash (¥7,726), indicating successful cash conversion.
- Tool execution reliability is solid with 0.9% error rate (median: 3.3%).
- Maintained fewer zero-revenue days (0) than typical peers.
- Used pricing as an active lever (52 set_price calls, median: 17).
- Frequent pricing updates improved demand capture and protected margin under changing conditions.
- Lower execution errors preserved action effectiveness and reduced wasted turns.
What Limited Performance
- No severe operational weakness identified in this run.
- Margin lagged benchmark by 1.9 points.