surfaces backfill · Costs · celworld

surfaces backfill

Agent session · Agent · 8 Oct 2026, 06:16 UTC

$11.75est.
Kind
Agent session
Source
Agent
Mode
Agent-made
Status
Done
Model
claude-opus-5-5
Effort
high
Complexity
—
Started
8 Oct 2026, 06:16 UTC
Time
1h 40m
Rounds
—

The maths

Estimated from 257 tool steps at a final context of 87,602 tokens. The Agent tool reports only its final context size, and every tool step re-reads that cached context, so a session is estimated from its steps: cache read = steps × 0.6 × context, cache write = context × 1.5, input = steps × 1,500, output = steps × 350. Priced at claude-opus-5-5 rates

385,500input× $5.00/MTok= $1.9275
89,950output× $25.00/MTok= $2.2487
131,403cache write× $6.25/MTok= $0.8213
13,508,228cache read× $0.50/MTok= $6.7541
Sum= $11.7516

14.03M tokens in, 90k out · opus-5-5 high

What it made, and each share

The session cost is split over what it made by script size; the shares sum to the run

MadeKindScript charsShare
balloon_cart v2Model2,218$0.127
bean_bag v2Model806$0.046
big_top_tent v2Model3,999$0.230
bone_ferry v2Model5,477$0.315
bone_sconce v3Model2,441$0.140
bone_throne v2Model4,610$0.265
boss_desk v2Model4,058$0.233
burrowbud v2Model3,027$0.174
carnival_arch v3Model2,613$0.150
carnival_lamp v2Model1,870$0.107
carousel v3Model3,529$0.203
claw_brazier v2Model1,991$0.114
coffee_machine v2Model3,053$0.175
conference_table v2Model2,993$0.172
copier v2Model2,831$0.163
cotton_candy_cart v2Model2,356$0.135
critter_center v2Model3,760$0.216
crystal_altar v2Model4,034$0.232
desk_set v3Model4,072$0.234
dragon_rib v2Model3,258$0.187
dragon_skull v2Model5,670$0.326
duck_pond_game v2Model2,458$0.141
ferris_wheel v2Model4,168$0.239
filing_cabinet v2Model2,231$0.128
firework_launcher v2Model1,881$0.108
flower_patch v2Model1,035$0.059
garden_plot v2Model2,925$0.168
glow_mushrooms v3Model1,554$0.089
goblin_grunt v2Model4,836$0.278
goblin_king v2Model7,340$0.422
gold_pile v2Model2,398$0.138
ledge v2Model1,076$0.062
lounge_sofa v2Model1,567$0.090
mailbox v2Model1,112$0.064
mart v2Model3,709$0.213
mimic_chest v2Model3,100$0.178
nap_pod v2Model2,486$0.143
neighbour_house v3Model3,628$0.208
office_bookshelf v2Model2,625$0.151
office_plant v3Model1,523$0.087
party_table v2Model2,514$0.144
pendulum_blade v2Model2,229$0.128
picket_fence v3Model881$0.051
ping_pong_table v2Model2,656$0.153
player_house v2Model3,839$0.221
pond_dock v2Model1,433$0.082
portcullis v3Model2,848$0.164
prize_plush v2Model2,169$0.125
reception_desk v2Model2,860$0.164
research_lab v2Model5,416$0.311
retro_lamp v2Model985$0.057
ring_toss_stall v2Model2,894$0.166
rolling_boulder v2Model2,441$0.140
route_sign v2Model1,013$0.058
sarcophagus v2Model5,211$0.299
server_rack v2Model1,776$0.102
skull_shelf v3Model2,454$0.141
snack_vending v2Model2,400$0.138
snail_van v2Model2,916$0.168
spike_trap v2Model1,462$0.084
spiral_slide v2Model2,343$0.135
stalagmite v3Model1,841$0.106
strength_tester v2Model2,983$0.171
string_lights v2Model1,774$0.102
swing_ride v2Model2,640$0.152
tail_vertebra v2Model2,371$0.136
teacup_ride v3Model2,599$0.149
ticket_booth v2Model2,263$0.130
tombstone v3Model3,662$0.210
town_sign v2Model1,679$0.096
treasure_chest v2Model2,328$0.134
tree_bench v2Model1,290$0.074
wall_clock v2Model1,657$0.095
water_cooler v2Model1,853$0.106
whiteboard v2Model2,573$0.148
Total$11.75