Run: 2026-04-24-01KQ0NZM8373M6KDGA4KEBDZX8

Run Details

Duration:
19.8s
Cost:
$0.039810
Provider:
OpenAI

Evaluation summary

Score Evaluator
Details Link
20.19% Matches word count (details)
99.99% Dialogue to Total Word Ratio (details)
60.0900% Overall

Model input

User/Human
You are a author of comedic heist books. Please write a 200 word scene that has 10% 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 birthday invitation across the dashboard like a treasure map, flattening cupcake crumbs with one black-gloved finger. Bill squinted through the rain at the community hall, where balloons bobbed in the windows and a papier-mâché dragon guarded the door with more dignity than most security guards. “We go in as magicians,” Molly said. “You can be the rabbit.” Bill patted his stomach. “I’m allergic to applause.” Inside, shrieks of musical chairs shook the glass. Parents milled about, dazed and sticky, perfect cover. On the curb, a pony in a party hat stared at their van as if memorizing the license plate. Molly had calculated everything: three minutes during cake, two sacks per trip, exit through the kitchen, apology note if necessary. Bill had contributed a map drawn on a napkin, mostly arrows and a surprisingly detailed sausage roll. Then the hall doors burst open. A dozen children charged out, each clutching a wrapped present, pursued by a clown shouting about fairness. The gifts were being redistributed for a game. Molly folded the invitation. Bill started the engine. “New plan,” she said. Bill adjusted mirrors and cleared confetti from the gearshift, trying not to look relieved. “Finally, adult supervision.” “Hardly,” Molly said. They followed the pony, who looked like management material. Behind them, the dragon sagged in soggy judgment.
created_at"2026-04-24T21:22:55.382Z" 4/24/2026, 9:22:55 PM
model"openai/gpt-5.5-20260423"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency17188
moderation_latency(null)
generation_time18909
tokens_prompt77
tokens_completion776
native_tokens_prompt66
native_tokens_completion1316
native_tokens_completion_images0
native_tokens_reasoning1018
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"completed"
usage0.03981
router(null)
provider_responses
0
endpoint_id"58e5b336-423e-430b-a2ab-8bc353f0c51b"
id"resp_0e90d2ca1fddb0b70169ebdf2f77a081978ea07b77def60039"
is_byokfalse
latency235
model_permaslug"openai/gpt-5.5-20260423"
provider_name"OpenAI"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.14.1; linux; x64))"
http_referer(null)
request_id"req-1777065775-v9smtI81AIC5odVAgEhF"
session_id(null)
api_type"completions"
id"gen-1777065775-Dxyyh1lGaxXWAgX4Gz0v"
upstream_id"resp_0e90d2ca1fddb0b70169ebdf2f77a081978ea07b77def60039"
total_cost0.03981
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"
response_cache_source_id(null)

Evaluation details

Result Evaluator Details Meta Data
20.19% Matches word count n/a
neededCleanfalse
words220
99.99% Dialogue to Total Word Ratio
Ratio: 9.01%, Deviation: 0.99%
neededCleanfalse
wordsTotal222
wordsDialogue20
60.0900%