Run: 2026-04-24-01KQ0MWGTJVAYHDBKDTNS3E914

Run Details

Model:
GPT-5.5
Duration:
9.8s
Cost:
$0.008490
Provider:
OpenAI

Evaluation summary

Score Evaluator
Details Link
99.98% Matches word count (details)
99.53% Dialogue to Total Word Ratio (details)
99.7547% 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 party map across the bonnet of their van, smoothing it with the reverence of a general planning war and the sticky fingers of someone who had already tested the cake frosting. Bill leaned over, squinting at the crayon diagram of balloons, bouncy castle, and a suspiciously cheerful clown station. “Back door, grab gifts, flee,” Bill said. Molly tapped the paper with a liquorice wand. “Too crude. We need elegance.” Across the street, children shrieked joyfully as a magician produced doves, coins, and what appeared to be a very confused hamster. The present table glittered beneath a mountain of wrapping paper, bows, and tiny cards addressed in heroic handwriting. Bill adjusted his fake moustache, which had been chosen from the costume box and looked emotionally unstable. “What about parents?” “Distract them with panic,” Molly said. Their plan involved Bill entering as Professor Pickle, emergency balloon inspector, while Molly, disguised as a grandmother with improbable eyebrows, would announce a sudden shortage of jelly. In the resulting adult stampede, they would swap the presents for empty boxes weighted with turnips. Bill nodded solemnly. “Turnips say birthday, right?” Molly grinned, pocketing three party poppers. “In prison, they will.”
created_at"2026-04-24T21:03:44.987Z" 4/24/2026, 9:03:44 PM
model"openai/gpt-5.5-20260423"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1795
moderation_latency(null)
generation_time9705
tokens_prompt77
tokens_completion344
native_tokens_prompt66
native_tokens_completion272
native_tokens_completion_images0
native_tokens_reasoning0
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"
usage0.00849
router(null)
provider_responses
0
endpoint_id"58e5b336-423e-430b-a2ab-8bc353f0c51b"
id"resp_02a5e022f66dbed80169ebdab12038819083222fd71bafec09"
is_byokfalse
latency375
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-1777064624-Qc2fwAUcq1NMY2DpiFcg"
session_id(null)
api_type"completions"
id"gen-1777064624-Ugj1EvAIsbyMPtOjS1Yu"
upstream_id"resp_02a5e022f66dbed80169ebdab12038819083222fd71bafec09"
total_cost0.00849
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"
response_cache_source_id(null)

Evaluation details

Result Evaluator Details Meta Data
99.98% Matches word count n/a
neededCleanfalse
words198
99.53% Dialogue to Total Word Ratio
Ratio: 12.63%, Deviation: 2.63%
neededCleanfalse
wordsTotal198
wordsDialogue25
99.7547%