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Run: 2026-07-09-01KX41D382T2E2TTM7WYQ472K0
Run Details
Model:
GPT-5.6 Luna (Reasoning)
Test:
Dialogue tags
Scenario:
Write 500 words with 30% dialogue
Duration:
6.6s
Cost:
$0.005466
Provider:
OpenAI
Evaluation summary
Score
Evaluator
Details Link
60.28%
Matches word count
(details)
4.10%
Dialogue to Total Word Ratio
(details)
32.1883%
Overall
Model input
User/Human
You are a author of comedic heist books. Please write a 500 word scene that has 30% 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 and Bill crouched behind the hedge opposite Number Forty-Two, where a banner reading HAPPY BIRTHDAY, PENELOPE! sagged between two apple trees. Beneath it, a dozen children shrieked around a table of cupcakes, while an enormous purple magician attempted to pull a rabbit from a hat and produced, after considerable effort, a plunger. The presents were stacked beside the back door, wrapped in glittering paper and guarded by a terrier with one suspicious eye. “Count them again,” Molly whispered. “Twenty-three,” Bill said. “You counted the dog.” “I counted twenty-four, then removed the dog.” Molly adjusted her stolen binoculars. “Our target is the presents. We get in, collect everything, and leave before anyone notices.” “Before anyone notices what?” “That we’ve stolen the presents.” Bill nodded thoughtfully. “So subtlety is important.” They wore matching yellow waistcoats and carried a cardboard box labeled SUPERIOR BALLOON SERVICES. The box contained no balloons. It contained two black masks, a coil of rope, three cheese sandwiches, and a squeaky rubber chicken Bill insisted was essential equipment. Molly checked the garden. The magician had now trapped his sleeve in the hat. A parent hurried toward him with scissors. The terrier yawned. “Phase One,” she said. “We enter as entertainers.” “You’re an entertainer?” “I’m the distraction.” “That wasn’t my question.” Molly marched through the gate, carrying the box with the solemnity of a royal procession. Bill followed, wearing a red nose that made his breathing sound like a punctured bicycle pump. A woman in a paper crown intercepted them. “You’re the balloon people?” “Exactly,” Molly said. “We specialize in invisible balloons.” The woman blinked. “Invisible?” “Very exclusive. For sophisticated parties.” Bill leaned forward. “They’re also silent, odorless, and impossible to return.” Before Molly could silence him, the woman pointed toward the presents. “Put your equipment by the cake.” They crossed the garden. Bill’s knees trembled so violently that the squeaky chicken began chirping inside the box. At the table, Molly opened it and discovered a problem. The rubber chicken had somehow wedged itself beneath the sandwiches. She tugged. The chicken shrieked. Every child turned. “Magic!” Bill announced. The children rushed over. Molly seized the moment. She grabbed the nearest presents and shoved them into the box. Bill followed, scooping up parcels with names written in careful marker: LUCAS, AMELIA, TOBY, and one simply marked DO NOT OPEN UNTIL SATURDAY. The terrier barked. “Run,” Molly hissed. They sprinted toward the gate, but the box split beneath the weight of a remote-control dinosaur. Wrapped gifts tumbled across the lawn. The dinosaur activated, roared, and charged after them. Bill vaulted the hedge. Molly climbed halfway over it before her waistcoat caught on a thorn. Behind them, the children cheered, believing the chase was part of the entertainment. “Best party ever!” someone shouted. Molly tore free, leaving behind a yellow button. “We’re never doing children again.” Bill glanced at the dinosaur pursuing them. “Agreed. Adults have much better presents.” The dinosaur rammed his ankle, and he fell into the flower bed. From inside the hedge, Molly sighed. “Fine. We’re stealing cupcakes.” “Excellent,” Bill said. “Phase Two: dessert.”
created_at
"2026-07-09T18:14:25.29Z"
7/9/2026, 6:14:25 PM
model
"openai/gpt-5.6-luna-20260709"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
1938
moderation_latency
(null)
generation_time
6398
tokens_prompt
77
tokens_completion
1069
native_tokens_prompt
66
native_tokens_completion
900
native_tokens_completion_images
0
native_tokens_reasoning
170
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
0.005466
router
(null)
provider_responses
0
endpoint_id
"eebea444-34a5-4642-a766-cb319471d33a"
id
"resp_0dff79cbacdc5f55016a4fe5015b508197bb17dd52bab6e62e"
is_byok
false
latency
312
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-1783620865-onKHnziek1pyBEcAxe0X"
session_id
(null)
preset_id
(null)
api_type
"completions"
id
"gen-1783620865-uZQu1b6IvNVuDVd0J4tV"
upstream_id
"resp_0dff79cbacdc5f55016a4fe5015b508197bb17dd52bab6e62e"
total_cost
0.005466
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
60.28%
Matches word count
n/a
neededClean
false
words
515
4.10%
Dialogue to Total Word Ratio
Ratio: 22.01%, Deviation: 7.99%
neededClean
false
wordsTotal
518
wordsDialogue
114
32.1883%