Run: 2026-09-23-01M37PKDTD5RY2SR7HVD2KXCTY

Run Details

Duration:
17.2s
Cost:
$0.023920
Provider:
Claude Platform on AWS

Evaluation summary

Score Evaluator
Details Link
100.00% Matches word count (details)
54.86% Dialogue to Total Word Ratio (details)
77.4282% Overall

Model input

User/Human
You are a author of comedic heist books. Please write a 500 word scene that has 70% 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 floor plan across the hood of the van and pinned one corner down with a juice box. "Right. Sunday, two o'clock. Tyler Henderson turns seven. Forty guests, one bouncy castle, and a present table the size of a small boat." Bill squinted at the drawing. "Why is the house shaped like a potato?" "Because I drew it from memory while jogging past, Bill. Focus." "You don't jog." "I jogged that day. For the mission." She tapped a crayon circle. "This is the gift table. It's by the back door, which gives us a clean exit to the alley." "And how do we get in? Pose as caterers?" "Better." Molly reached into a duffel bag and pulled out a fluffy purple costume with a sagging unicorn head. "Entertainment." Bill stared at it for a long moment. "I'm not wearing that." "You're not. I am. You're wearing this." She produced a second costume: a rainbow wig, a red nose, and trousers so enormous they could have housed a family of four. "A clown? Molly, children can smell fear. They'll know I'm a fraud." "You are a fraud. That's the whole job." Bill held the trousers against his waist and sighed. "What do clowns even do?" "Balloon animals. I bought you a starter kit." She tossed him a bag of balloons. "Practice." Bill inflated one, twisted it three times, and held up a lumpy pink shape. "Dog." "That's a sausage." "It's a dachshund. They're basically sausages." He added a fourth twist and the balloon exploded with a crack that sent a pigeon fleeing from the roof. "Okay. Sick dachshund." Molly pressed on. "Here's the play. At two-fifteen, I lead the kids in the Unicorn Dance. Very distracting. Lots of spinning. Meanwhile, you start loading presents into your trousers." "Into my trousers?" "Why do you think they're so big? I measured. Those pockets hold eleven medium-sized gifts or one remote-control helicopter." Bill peered inside the waistband with new respect. "There's a shelf in here." "Adjustable. I'm not an amateur." "What about the parents? Parents at these things watch like hawks." "The parents will be at the drinks table by then. Mrs. Henderson makes a punch that's mostly rum. I checked her recycling bin." "You went through her bins?" "Research, Bill. Every great heist starts with garbage." He frowned at the potato-shaped house. "And the birthday boy? Tyler?" Molly's expression darkened. "Tyler is the wild card. According to my sources, he bit a magician last year." "Your sources?" "His cousin. She's nine. She wanted two dollars and a sticker." Bill swallowed. "He bit a magician?" "On the ankle. Right through the sock. So whatever you do, don't let him see the trousers moving." "Why would the trousers move?" "Hamster ball. It's on the wish list. Fully assembled, with the hamster already inside." Bill set down his balloons very carefully. "Molly, I think we need a plan B." She smiled and pulled a second crayon from her pocket. "Oh, Bill. This *is* plan B."
created_at"2026-09-23T17:56:47.07Z" 9/23/2026, 5:56:47 PM
model"anthropic/claude-opus-5.5-20260921"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency17121
moderation_latency(null)
generation_time17121
tokens_prompt75
tokens_completion791
native_tokens_prompt95
native_tokens_completion1177
native_tokens_completion_images(null)
native_tokens_reasoning70
native_tokens_cached0
num_media_prompt(null)
num_input_audio_prompt(null)
num_media_completion0
num_search_results(null)
num_fetches(null)
web_search_engine(null)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"end_turn"
service_tier"default"
usage0.02392
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.20.0; linux; x64))"
http_referer(null)
request_id"req-1790186207-IqI3jC6tMWYjCBbUTNJ3"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1790186207-KC8dZuYOpNFeNwpEjiFf"
upstream_id"msg_011CfLoXHECHThotQeSD9Dun"
provider_responses
0
endpoint_id"3a2388bc-3740-4e64-a1f5-4e301726b6b9"
id"msg_011CfLoXHECHThotQeSD9Dun"
is_byokfalse
latency1245
model_permaslug"anthropic/claude-opus-5.5-20260921"
provider_name"Claude Platform on AWS"
status200
total_cost0.02392
cache_discount(null)
upstream_inference_cost0
provider_name"Claude Platform on AWS"
response_cache_source_id(null)
data_region"global"
workspace_id"97e315e5-d303-487d-83c1-83180e8a13d4"

Evaluation details

Result Evaluator Details Meta Data
100.00% Matches word count n/a
neededCleanfalse
words501
54.86% Dialogue to Total Word Ratio
Ratio: 66.53%, Deviation: 3.47%
neededCleanfalse
wordsTotal505
wordsDialogue336
77.4282%