Run: 2026-04-24-01KQ0NXXATZP524SWVXHVW434N

Run Details

Model:
GPT-5.5
Duration:
8.3s
Cost:
$0.009360
Provider:
OpenAI

Evaluation summary

Score Evaluator
Details Link
99.92% Matches word count (details)
99.39% Dialogue to Total Word Ratio (details)
99.6567% Overall

Model input

User/Human
You are a author of comedic heist books. Please write a 200 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 crouched behind the hedge, peering at the bouncy castle swaying in the garden like a drunk elephant. Bill unfolded a crayon map of the house, sticky with jam. “We go in at two,” Molly said. “That’s when the magician starts,” Bill whispered. “Exactly. Nobody notices thieves during balloon animals.” Bill squinted. “What about the parents?” “Distracted by cake politics.” “Cake politics?” “Who gets a corner piece. It’s brutal.” Inside, children shrieked with joy. A dog wearing a party hat barked at a bubble machine. Bill tapped the map. “Presents are here, by the fireplace.” “Good. We grab them, replace them with decoys.” “What decoys?” Molly opened her sack. It was full of wrapped vegetables. “You wrapped broccoli?” “With bows.” “That’s monstrous.” “We’re thieves, Bill.” “We have standards.” A small girl appeared at the gate, holding a tiara and staring. “Are you the treasure pirates?” she asked. Molly froze. Bill smiled weakly. “Yes,” he said. “But we’re retired.” The girl nodded solemnly. “Mummy says you can carry gifts to the table.” Molly looked at Bill. “New plan,” she muttered. Bill sighed, lifting the vegetable sack. “We infiltrate politely.” “Then steal nothing.” “Except cake.” Molly grinned. “Corner piece.”
created_at"2026-04-24T21:21:59.155Z" 4/24/2026, 9:21:59 PM
model"openai/gpt-5.5-20260423"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1285
moderation_latency(null)
generation_time8129
tokens_prompt77
tokens_completion399
native_tokens_prompt66
native_tokens_completion301
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"
usage0.00936
router(null)
provider_responses
0
endpoint_id"58e5b336-423e-430b-a2ab-8bc353f0c51b"
id"resp_095f0cb87246185c0169ebdef754a88197978ebb4bba49bcdb"
is_byokfalse
latency358
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-1777065719-zt7ubVrGm5uBtbUt6wm0"
session_id(null)
api_type"completions"
id"gen-1777065719-X4XgVrIy5upmiiaa4EMo"
upstream_id"resp_095f0cb87246185c0169ebdef754a88197978ebb4bba49bcdb"
total_cost0.00936
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"
response_cache_source_id(null)

Evaluation details

Result Evaluator Details Meta Data
99.92% Matches word count n/a
neededCleanfalse
words197
99.39% Dialogue to Total Word Ratio
Ratio: 47.21%, Deviation: 2.79%
neededCleanfalse
wordsTotal197
wordsDialogue93
99.6567%