NC Bench
Overview
About
Tests
Categories
Models
Vendors
Compare
Run: 2026-07-09-01KX40BCEVWKEQD54RACZ7W2H8
Run Details
Model:
GPT-5.6 Luna (Reasoning)
Test:
Dialogue tags
Scenario:
Write 500 words with 50% dialogue
Duration:
8.2s
Cost:
$0.007758
Provider:
OpenAI
Evaluation summary
Score
Evaluator
Details Link
0.00%
Matches word count
(details)
6.38%
Dialogue to Total Word Ratio
(details)
3.1889%
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
Rain ticked against the laundromat window while Molly and Bill crouched over a hand-drawn map of the community center. Across the street, paper balloons bobbed behind the glass, announcing Timmy’s Dinosaur Birthday Extravaganza. A mountain of wrapped presents waited beneath a banner shaped like a smiling tyrannosaurus. “Molly, I’m beginning to question the ethics of robbing children.” “You questioned the ethics of robbing a vending machine, and that machine had no feelings.” “It had a maintenance sticker.” “And you stole its emergency chocolate.” “That was different. I was emotionally compromised.” Molly tapped the map with a pencil. Bill had drawn the building, but his version included a moat, three watchtowers, and a dragon wearing a party hat. Molly had crossed out the dragon and added a janitor’s closet. “The party starts in twenty minutes,” she said. “We enter disguised as entertainers, locate the presents, and leave before anyone notices.” “What kind of entertainers?” “Magicians.” “We don’t know magic.” “We know enough. You pull a coin from someone’s ear, I distract them with smoke.” “Last time you used smoke, the fire department sent us a thank-you card.” “It was a memorable performance.” The community center’s side door opened, and a woman carried in a tray of cupcakes. Each one had a tiny plastic dinosaur standing in frosting. Bill watched hungrily until Molly elbowed him. “Focus. The presents are our objective.” “Some of those cupcakes have presents on them.” “Those are sprinkles.” “Then why are they wearing hats?” Molly produced two glittering jackets from her bag. One said MAGICAL MOLLY in silver letters. The other said BILL THE AMAZING, though the final word had been sewn over a suspiciously large tear. Bill held up his jacket. “Why does mine smell like a zoo?” “Because it belonged to a magician who performed at a petting farm.” “Was he successful?” “He vanished.” Bill considered this, then slipped into the jacket. Molly tucked a deck of cards into her sleeve and gave him a plastic wand. The wand squeaked when he moved it. “Remember,” she whispered, “we’re children’s entertainers, not burglars.” “What’s the difference?” “Burglars don’t make balloon animals.” “Have you seen my balloon giraffe?” “It looks like a collapsed bicycle.” “That’s because the giraffe is sad.” They crossed the street under the cover of a delivery truck and entered through the front doors. A dozen children roared around the refreshments table while a tired-looking father attempted to inflate a purple balloon. Molly swept inside with a theatrical bow. “Greetings, tiny citizens! Prepare to witness impossible wonders!” Bill raised the wand. It squeaked loudly. Every child turned. Molly smiled. “And now, the greatest trick of all: disappearing presents.” Bill leaned toward her. “That was not the approved opening.” “It got their attention.” “It got the dinosaur too.” At the base of the gift pile, a mechanical tyrannosaurus awakened and began stomping toward them, its plastic jaws snapping. Molly seized a cardboard box. Bill grabbed the nearest bundle. “Run!” he hissed. “Act natural!” “I’m carrying a wrapped bicycle!” “Then act like someone who owns a bicycle!” They bolted toward the exit as the dinosaur roared, the children cheered, and the father shouted that the magician had stolen his nephew’s birthday. Outside, Molly and Bill collapsed behind the delivery truck. Bill unwrapped the bundle. Inside was a pair of enormous socks, a puzzle, and a note reading, “For Timmy, with love.” Molly stared at him. Bill sighed. “We return the presents.” “And the cupcakes.” “Obviously. We’re thieves, not monsters.” From inside the center came applause. Molly glanced at the squeaking wand. “Still, we may have a career in children’s entertainment.” Bill looked at the sad balloon giraffe. “Only if the giraffe gets top billing.”
created_at
"2026-07-09T17:56:00.61Z"
7/9/2026, 5:56:00 PM
model
"openai/gpt-5.6-luna-20260709"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
2063
moderation_latency
(null)
generation_time
7787
tokens_prompt
77
tokens_completion
1399
native_tokens_prompt
66
native_tokens_completion
1282
native_tokens_completion_images
0
native_tokens_reasoning
447
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"
service_tier
"default"
usage
0.007758
router
(null)
provider_responses
0
endpoint_id
"eebea444-34a5-4642-a766-cb319471d33a"
id
"resp_09c306b6e0104baa016a4fe0b0af448196874e775e37ea643a"
is_byok
false
latency
224
model_permaslug
"openai/gpt-5.6-luna-20260709"
provider_name
"OpenAI"
status
200
user_agent
"langchainjs-openai/1.0.0 ((node/v24.18.0; linux; x64))"
http_referer
(null)
request_id
"req-1783619760-4lv2rFqGYShk2nRdKJpm"
session_id
(null)
preset_id
(null)
api_type
"completions"
id
"gen-1783619760-XlE4DaeUiUvHiEvrEvoP"
upstream_id
"resp_09c306b6e0104baa016a4fe0b0af448196874e775e37ea643a"
total_cost
0.007758
cache_discount
(null)
upstream_inference_cost
0
provider_name
"OpenAI"
response_cache_source_id
(null)
data_region
"global"
Evaluation details
Result
Evaluator
Details
Meta Data
0.00%
Matches word count
n/a
neededClean
false
words
617
6.38%
Dialogue to Total Word Ratio
Ratio: 42.58%, Deviation: 7.42%
neededClean
false
wordsTotal
620
wordsDialogue
264
3.1889%