Run: 2026-04-24-01KQ0N9ZMPENWD3AHCA0METXVY

Run Details

Model:
GPT-5.5
Duration:
8.5s
Cost:
$0.008790
Provider:
OpenAI

Evaluation summary

Score Evaluator
Details Link
100.00% Matches word count (details)
99.48% Dialogue to Total Word Ratio (details)
99.7411% 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 flattened the crayon-smeared invitation against the café table with the solemnity of a general studying a battlefield. Across from her, Bill wore a balloon-animal hat he insisted was “excellent camouflage,” though it made him look like a guilty sausage. The target was clear: Daisy Pemberton’s seventh birthday, Saturday, 2 p.m., community hall, presents piled beside the bouncy castle. The obstacles were less clear, unless one counted sugared children, suspicious parents, and a magician named The Amazing Gary, whose rabbit had once bitten Bill. “We enter as entertainers,” Molly said. “You juggle.” “I can’t juggle,” Bill said. “Exactly. They’ll pity you.” Bill nodded, scribbling a diagram that showed the hall, the cake table, and a stick figure labeled ME? falling into punch. Molly tapped the present zone with a biscotti. At precisely three, during pass-the-parcel, she explained, everyone’s eyes would be on the music. Bill would wheel in the “replacement piñata,” actually a laundry hamper with streamers. Molly would transfer the gifts, one plush unicorn at a time, while smiling like an aunt with back pain. Bill frowned at the invitation. “What if Daisy cries?” Molly paused. Outside, a toddler dropped an ice cream and wailed. “We leave the educational ones.”
created_at"2026-04-24T21:11:06.143Z" 4/24/2026, 9:11:06 PM
model"openai/gpt-5.5-20260423"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency680
moderation_latency(null)
generation_time8434
tokens_prompt77
tokens_completion354
native_tokens_prompt66
native_tokens_completion282
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"
usage0.00879
router(null)
provider_responses
0
endpoint_id"58e5b336-423e-430b-a2ab-8bc353f0c51b"
id"resp_055eea9932fb90fc0169ebdc6a3a148197b5a8c857d0bfaef3"
is_byokfalse
latency269
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-1777065066-R0fBV9imKDxNthbBU0zz"
session_id(null)
api_type"completions"
id"gen-1777065066-97Hz57xUTRw8HaEVugSO"
upstream_id"resp_055eea9932fb90fc0169ebdc6a3a148197b5a8c857d0bfaef3"
total_cost0.00879
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"
response_cache_source_id(null)

Evaluation details

Result Evaluator Details Meta Data
100.00% Matches word count n/a
neededCleanfalse
words201
99.48% Dialogue to Total Word Ratio
Ratio: 12.68%, Deviation: 2.68%
neededCleanfalse
wordsTotal205
wordsDialogue26
99.7411%