−800
−600
−400
−200
0
Tokens / turn
Tokens / episode
First-turn tokens
A Generation cost: Iter80 minus Base
All 400 tasks
211 tasks successful in both
−1.0
−0.8
−0.6
−0.4
−0.2
0.0
0.2
0.4
Model turns
Searches
Unique products
Pagination
Invalid actions
Protocol errors
B Interaction: Iter80 minus Base
All 400 tasks
211 tasks successful in both
Task-paired mean differences and 95% percentile intervals; 5,000 resamples. Exploratory, without multiplicity correction.