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Run: 2026-04-24-01KQ0P39PC2YMMBM204WCB0CPG
Run Details
Model:
GPT-5.5 (Reasoning)
Test:
Dialogue tags
Scenario:
Write 500 words with 50% dialogue
Duration:
24.1s
Cost:
$0.031620
Provider:
OpenAI
Evaluation summary
Score
Evaluator
Details Link
0.00%
Matches word count
(details)
88.75%
Dialogue to Total Word Ratio
(details)
44.3768%
Overall
Model input
User/Human
You are a author of comedic heist books. Please write a 500 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
Messages
Meta
AI
Molly spread the crayon-drawn map across the bonnet of the van and weighed down the corners with two stale doughnuts and Bill’s left shoe. The map showed a bouncy castle, a cake table, and a suspiciously large pile of presents beneath a banner reading HAPPY 6TH BIRTHDAY, TIMMY! Bill squinted. “Why is the dog labelled ‘security’?” “Because it’s wearing a bow tie,” Molly said. “That’s confidence. Confidence is dangerous.” “It’s a spaniel.” “So was the Duke of Wellington, probably.” Bill scratched his chin with the solemnity of a man considering both crime and jam. “I still say this is low, even for us.” Molly looked over the hedge at the garden. Children shrieked around a magician who appeared to be losing an argument with his own rabbit. “Low? Bill, those presents are unattended.” “They’re attended by thirty children, twelve parents, one magician, and a spaniel.” “Details.” “Also,” Bill said, “we are stealing from a children’s party.” Molly tapped the map. “We are liberating poorly wrapped consumer goods from the tyranny of sticky fingerprints.” “That’s not better.” “It sounds better.” A balloon drifted over the hedge and landed at Bill’s feet. It read PRINCESS SPARKLE PONY. He picked it up with reverence. “Molly,” he whispered, “what if there are ponies?” “There won’t be ponies.” “You don’t know that.” “The driveway has no trailer marks.” “You checked?” “I’m a professional.” Bill nodded, impressed despite himself. “What’s the plan, then?” Molly straightened. “We enter during the singing of ‘Happy Birthday.’ Everyone is distracted. You approach the gift pile dressed as entertainment.” “As what entertainment?” “A pirate.” Bill looked down at his striped shirt. “I thought I was dressed as a burglar.” “Exactly. Children won’t know the difference.” “They will. Children are brutal art critics.” Molly ignored him. “You fill the sack. I create a diversion by asking the magician if his rabbit has a permit.” “That’s not a diversion. That’s bureaucracy.” “Bureaucracy is the loudest magic.” From the garden came a cheer, followed by an adult shouting, “Not in the paddling pool, Oliver!” Bill peered through the leaves. “There’s a paddling pool. That changes everything.” “How?” “I’m weak around nautical themes.” Molly took back his shoe from the map and handed it to him. “Focus. In and out. No heroics. No cake.” Bill’s face fell. “No cake?” “No cake.” “What if cake falls into the sack?” “We remove it.” “What if it falls into my mouth?” “Then you’re on your own.” A small girl in fairy wings appeared at the gate and stared at them. Molly froze. Bill waved with the balloon. The girl pointed at the van. “Are you the pony people?” Bill’s eyes shone. Molly smiled too widely. “No, darling. We’re the, er, present inspectors.” “My mum says presents are not to be touched until after cake.” Bill gasped. “After cake? Barbaric.” The girl narrowed her eyes. “You’re not invited.” Molly folded the map very slowly. “That is a hurtful but accurate observation.” The spaniel trotted up behind the girl, bow tie wagging with menace. It sat, judged them, and sneezed. Bill leaned close to Molly. “Security has made contact.” “Retreat,” Molly hissed. They shuffled backward. Bill tripped over the doughnuts, the balloon popped, and every face in the garden turned toward the hedge. The magician shouted, “For my next trick, I’ll make two suspicious adults disappear!” Molly grabbed Bill’s sleeve. “Run.” As they fled, Bill panted, “New plan?” Molly glanced at the party, where the girl was now feeding cake to the spaniel. “Yes.” “Less evil?” “Much.” Bill brightened. “Steal from a bank?” “No,” Molly said. “We become children’s entertainers.” Bill considered this. “Can I be the pony?” “Only if you learn to juggle.”
created_at
"2026-04-24T21:24:55.636Z"
4/24/2026, 9:24:55 PM
model
"openai/gpt-5.5-20260423"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
4736
moderation_latency
(null)
generation_time
23612
tokens_prompt
77
tokens_completion
1156
native_tokens_prompt
66
native_tokens_completion
1043
native_tokens_completion_images
0
native_tokens_reasoning
150
native_tokens_cached
0
num_media_prompt
(null)
num_input_audio_prompt
(null)
num_media_completion
0
num_search_results
(null)
num_fetches
(null)
web_search_engine
(null)
origin
"https://ncbench.com/"
is_byok
false
finish_reason
"stop"
native_finish_reason
"completed"
usage
0.03162
router
(null)
provider_responses
0
endpoint_id
"58e5b336-423e-430b-a2ab-8bc353f0c51b"
id
"resp_0fe19a5c365b23810169ebdfa7dc008196bd72e113ecab3216"
is_byok
false
latency
302
model_permaslug
"openai/gpt-5.5-20260423"
provider_name
"OpenAI"
status
200
user_agent
"langchainjs-openai/1.0.0 ((node/v24.14.1; linux; x64))"
http_referer
(null)
request_id
"req-1777065895-EC3cpu3Sh6NpxWChGkYN"
session_id
(null)
api_type
"completions"
id
"gen-1777065895-LHRsuI4pvE3yxtcjwwQm"
upstream_id
"resp_0fe19a5c365b23810169ebdfa7dc008196bd72e113ecab3216"
total_cost
0.03162
cache_discount
(null)
upstream_inference_cost
0
provider_name
"OpenAI"
response_cache_source_id
(null)
Evaluation details
Result
Evaluator
Details
Meta Data
0.00%
Matches word count
n/a
neededClean
false
words
614
88.75%
Dialogue to Total Word Ratio
Ratio: 51.54%, Deviation: 1.54%
neededClean
false
wordsTotal
615
wordsDialogue
317
44.3768%