Run: 2026-02-18-01KHQ94X4Z7KSMH578FXE9WRAB

Run Details

Duration:
19.1s
Cost:
$0.010920
Provider:
Anthropic

Evaluation summary

Score Evaluator
Details Link
90.48% Matches word count (details)
87.52% Dialogue to Total Word Ratio (details)
89.0030% Overall

Model input

User/Human
You are a author of comedic heist books. Please write a 500 word scene that has 50% words of dialogue between two thieves named Molly and Bill who are planning to break into a children's party to steal all the presents. Only include the prose of the scene without any markdown or commentary.

Model response

AI
Molly spread the crayon-drawn map across the hood of the car and smoothed out the wrinkles with her palm. The map had been confiscated from a seven-year-old named Declan, who had drawn it himself, which meant half of it was a dinosaur for no apparent reason. "The presents are stacked by the back fence," Molly said, tapping the dinosaur. "Or possibly here is where a dinosaur lives. Hard to say." Bill squinted at the map. "Why did we trust a child to be our inside man?" "Because adults ask questions, Bill. Declan asked for a juice box and called it even." Bill pulled his black beanie down over his ears even though it was seventy-two degrees outside. He believed strongly in the aesthetics of crime, regardless of the weather. "Walk me through the timeline again," he said. "Pin the tail on the donkey starts at two. That buys us four minutes of total chaos. Every child in that yard will be blindfolded and spinning." "What about the parents?" "Sandra's husband is running the music. He will be completely consumed by his Bluetooth speaker, which he does not understand and never will." Bill nodded slowly, absorbing this intelligence like a sponge absorbing something that made it deeply uncomfortable. A bounce house wheezed rhythmically in the distance. Children shrieked with the unhinged energy of small animals that had eaten only sugar since morning. "That bounce house is a liability," Bill said. "I accounted for the bounce house." "Did you account for the clown?" Molly paused. She looked at Bill. Bill looked back at her with the expression of a man who had just revealed the one variable that collapses the entire equation. "What clown, Bill." "There is a clown, Molly." "You are telling me this now." "I found out about the clown this morning. His name is apparently Zippo. He does balloon animals and has very fast hands." Molly rolled up the map and pressed it against her forehead. A child nearby fell off a tricycle and immediately stood up and fell off again. "Fast hands," she repeated quietly. "Professionally fast. He does a disappearing coin trick. I watched a video online." "We are planning to steal from a birthday party and you are concerned about a man named Zippo doing a coin trick." "I am simply saying he will notice things." Molly breathed in slowly through her nose and breathed out through her mouth the way her therapist had taught her, which her therapist had definitely not intended for this particular situation. "Here is what we do," she said. "You distract Zippo. Compliment the balloon animals. Ask him for a complicated one. Request a giraffe." "Why a giraffe?" "Because they are hard, Bill. Long neck. Lots of twisting. That buys me eight minutes minimum." Bill considered this with great seriousness and then nodded once. "I can do a giraffe," he said. "I know you can," said Molly.
created_at"2026-02-18T02:27:17.701309+00:00" 2/18/2026, 2:27:17 AM
model"anthropic/claude-4.6-sonnet-20260217"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency771
moderation_latency(null)
generation_time19066
tokens_prompt77
tokens_completion759
native_tokens_prompt75
native_tokens_completion713
native_tokens_completion_images(null)
native_tokens_reasoning0
native_tokens_cached0
num_media_prompt(null)
num_input_audio_prompt(null)
num_media_completion0
num_search_results(null)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"stop"
usage0.01092
router(null)
provider_responses
0
id"msg_01QygGCv7eQgBjmQ5md9RyTF"
status200
is_byokfalse
latency771
endpoint_id"6d408764-7dd7-4626-bb87-a6cc1589bc86"
provider_name"Anthropic"
model_permaslug"anthropic/claude-4.6-sonnet-20260217"
api_type"completions"
id"gen-1771381617-bDibsustB0kbj7Lu9J0x"
upstream_id"msg_01QygGCv7eQgBjmQ5md9RyTF"
total_cost0.01092
cache_discount(null)
upstream_inference_cost0
provider_name"Anthropic"

Evaluation details

Result Evaluator Details Meta Data
90.48% Matches word count n/a
neededCleanfalse
words490
87.52% Dialogue to Total Word Ratio
Ratio: 51.63%, Deviation: 1.63%
neededCleanfalse
wordsTotal490
wordsDialogue253
89.0030%