Run: 2026-04-24-01KQ0NF66GZ4DK4PJ0KCB6ZX68

Run Details

Model:
GPT-5.5
Duration:
8.1s
Cost:
$0.009780
Provider:
OpenAI

Evaluation summary

Score Evaluator
Details Link
86.38% Matches word count (details)
93.01% Dialogue to Total Word Ratio (details)
89.6943% 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 flattened the birthday invitation on the dashboard with a gloved finger. Through the windshield, balloons bobbed over the community hall like suspiciously cheerful security cameras. Bill, wearing a clown wig for reasons he refused to explain, squinted at the crayon map. “Side door by the bouncy castle,” Molly said. “Terrible idea,” Bill said. “Bouncy castles squeak.” “You squeak.” “I am aerodynamic.” “You are dressed like a haunted cupcake.” Bill checked his watch, which had a picture of a duck on it. “At two-fifteen, the magician starts. Children look left, adults film badly, we enter right.” “And the presents?” “Stacked by the cake table.” Molly nodded gravely. “We take only the loudest boxes.” “The loud ones?” “Drums, whistles, robot dogs. Public service.” Bill considered this. “So we’re villains with community values.” “Exactly.” Inside the hall, a chorus of tiny voices began singing happy birthday, each child choosing a different key. Molly winced. “That’s our cue,” she said. Bill lifted a sack labeled LAUNDRY. “If anyone asks, we’re entertainers.” “You know balloon animals?” “I know balloon snake.” “That’s just a balloon.” “It’s minimalism.” They slipped from the van, tiptoed across the grass, and collided with a goat in a party hat. Bill froze. “Plan B?” he whispered. Molly sighed. “Befriend the goat.”
created_at"2026-04-24T21:13:56.699Z" 4/24/2026, 9:13:56 PM
model"openai/gpt-5.5-20260423"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency675
moderation_latency(null)
generation_time8027
tokens_prompt77
tokens_completion411
native_tokens_prompt66
native_tokens_completion315
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"
usage0.00978
router(null)
provider_responses
0
endpoint_id"58e5b336-423e-430b-a2ab-8bc353f0c51b"
id"resp_03be436a45aeff160169ebdd14d5f48194a1a70251779a3339"
is_byokfalse
latency341
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-1777065236-ovokSOhs9xBWFB5wbThe"
session_id(null)
api_type"completions"
id"gen-1777065236-xWjfp3RxAYHCIlssCVw6"
upstream_id"resp_03be436a45aeff160169ebdd14d5f48194a1a70251779a3339"
total_cost0.00978
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"
response_cache_source_id(null)

Evaluation details

Result Evaluator Details Meta Data
86.38% Matches word count n/a
neededCleanfalse
words211
93.01% Dialogue to Total Word Ratio
Ratio: 44.81%, Deviation: 5.19%
neededCleanfalse
wordsTotal212
wordsDialogue95
89.6943%