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Run: 2026-09-03-01M1K5X5R8YH3G98T090TTT0XG
Run Details
Model:
Muse Spark 1.2 (Reasoning, Medium)
Test:
Dialogue tags
Scenario:
Write 500 words with 30% dialogue
Duration:
31.1s
Cost:
$0.025878
Provider:
Meta
Evaluation summary
Score
Evaluator
Details Link
100.00%
Matches word count
(details)
99.56%
Dialogue to Total Word Ratio
(details)
99.7799%
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
The community center on Maple Street had been transformed into a pastel nightmare of streamers and balloons, with a hand-painted banner reading Happy Birthday Leo sagging optimistically over the entrance. Molly crouched behind her aging white van, peering through binoculars at the folding table heaped with brightly wrapped boxes. Bill sat beside her, attempting to inflate a balloon that kept squeaking in protest. Their plan was simple on paper and humiliating in practice. She had cased the party last week while pretending to be a prospective parent touring the facility, noting the blind spots, the overworked entertainer, and the single harried mother guarding the juice boxes. The presents were piled near the back door, conveniently close to the parking lot, as if the universe wanted them stolen. Bill was already sweating through his striped shirt, which Molly had purchased from a discount costume shop that morning. The van's side door was wedged open, ready to receive the haul. Outside, children shrieked with the unfiltered joy of too much sugar and too little supervision. A clown on stilts wobbled past the window, and Molly felt a flicker of doubt about their chosen disguises. Still, the take promised to be substantial, with at least fifteen large boxes and a suspiciously lumpy gift bag that probably contained cash. She lowered the binoculars and turned to Bill, who had finally succeeded in tying the balloon, only for it to immediately pop. "Bill, we are stealing from a five-year-old's birthday party." "Technically we're stealing from the parents who bought the presents." "That does not make us sound better, Molly." "Relax, it's not like we're taking the cake." "We are taking everything else, including the cake if it fits in the van." "It's a bouncy castle, Bill. How do we even get in unnoticed?" "We dress as clowns. No one questions clowns at a children's party." Bill stared at the rubber shreds in his palm with the solemnity of a man holding his own future. The parking lot smelled of hot asphalt and spilled lemonade. Molly checked her watch; the donkey game was due to start in three minutes. From inside, the off-key chorus of Happy Birthday began, giving them their cue. They pulled on red noses that pinched painfully and oversized shoes that flopped. Bill slipped twice. Molly steadied him, sighing. Somewhere a child yelled that he wanted cake, and another shouted louder. "I am terrified of clowns and I am a criminal." "Perfect, then you'll be convincing. You look haunted." "What's the exit plan when twenty sugars-high kids start screaming?" "We grab the present table during pin the tail on the donkey and run." "That's your master plan? Steal presents while they're stabbing a donkey poster?" "It's elegant, simple, and the parents will be too distracted to notice." "Fine, but if I make balloon animals, I'm keeping the tips." Their moment had arrived, absurd and glittering, and they shuffled toward the back door like very guilty, very unfunny clowns ready to steal childhood itself.
created_at
"2026-09-03T08:24:30.222Z"
9/3/2026, 8:24:30 AM
model
"meta/muse-spark-1.2-20260805"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
29828
moderation_latency
(null)
generation_time
31023
tokens_prompt
75
tokens_completion
765
native_tokens_prompt
68
native_tokens_completion
6069
native_tokens_completion_images
0
native_tokens_reasoning
5406
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
"auto"
usage
0.02587825
router
(null)
user_agent
"langchainjs-openai/1.0.0 ((node/v24.19.0; linux; x64))"
http_referer
(null)
request_id
"req-1788423870-5q9mOv380uIdyw71PAKv"
session_id
(null)
preset_id
(null)
api_type
"completions"
id
"gen-1788423870-0VPMStRB8sjwhQ2fhwH2"
upstream_id
"resp_6a992ebe902d8c3e05f94982"
provider_responses
0
endpoint_id
"ffc8e76e-808a-44d2-bd21-c6ac16e721cb"
id
"resp_6a992ebe902d8c3e05f94982"
is_byok
false
latency
217
model_permaslug
"meta/muse-spark-1.2-20260805"
provider_name
"Meta"
status
200
total_cost
0.02587825
cache_discount
(null)
upstream_inference_cost
0
provider_name
"Meta"
response_cache_source_id
(null)
data_region
"global"
workspace_id
"97e315e5-d303-487d-83c1-83180e8a13d4"
Evaluation details
Result
Evaluator
Details
Meta Data
100.00%
Matches word count
n/a
neededClean
false
words
500
99.56%
Dialogue to Total Word Ratio
Ratio: 30.30%, Deviation: 0.30%
neededClean
false
wordsTotal
505
wordsDialogue
153
99.7799%