NC Bench
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Run: 2026-02-20-01KHY9T60KKN58HXSZ6B1P0RF6
Run Details
Model:
Grok 4 Fast
Test:
Dialogue tags
Scenario:
Write 200 words with 50% dialogue
Duration:
3.3s
Cost:
$0.000305
Provider:
xAI
Evaluation summary
Score
Evaluator
Details Link
0.03%
Matches word count
(details)
14.97%
Dialogue to Total Word Ratio
(details)
7.5005%
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
Messages
Meta
AI
Molly hunched over the rickety kitchen table in their cramped apartment, a crumpled party invitation spread out like a treasure map. Bill paced, munching on a stale doughnut, crumbs dusting his rumpled shirt. The plan was audacious: crash little Timmy's birthday bash at the community center and swipe the pile of presents before the cake was cut. "Listen, Bill," Molly whispered, eyes gleaming. "It's perfect. Kids are distracted by games, parents are boozed up on punch. We slip in as caterers—voilà, gift grab!" Bill snorted, nearly choking on his bite. "Caterers? You? Last time you 'catered,' we burned down the safe house microwave. And what about the snot-nosed brigade? One whiff of trouble, and it's a toddler stampede." Molly grinned, sketching a crude diagram. "That's why we use the piñata ploy. You swing the stick as the clown—" "Clown? I'm allergic to face paint! It'll be a sneezing catastrophe," Bill interrupted, waving his arms. "And the presents? They're wrapped like mummies. We'll be tearing paper while balloons pop and some kid screams bloody murder." "Exactly! Chaos covers us," Molly shot back. "In and out in ten minutes. Think of the haul—Xbox, bikes, cash-stuffed cards. We're talking retirement, partner." Bill paused, doughnut forgotten. "Fine. But if a unicorn bounce house deflates on me, you're hauling the loot solo." Molly laughed. "Deal. Operation Party Pooper starts at noon."
created_at
"2026-02-20T19:53:16.063Z"
2/20/2026, 7:53:16 PM
model
"x-ai/grok-4-fast"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
1270
moderation_latency
(null)
generation_time
3089
tokens_prompt
77
tokens_completion
370
native_tokens_prompt
216
native_tokens_completion
589
native_tokens_completion_images
0
native_tokens_reasoning
263
native_tokens_cached
215
num_media_prompt
(null)
num_input_audio_prompt
(null)
num_media_completion
0
num_search_results
(null)
origin
"https://ncbench.com/"
is_byok
false
finish_reason
"stop"
native_finish_reason
"completed"
usage
0.00030545
router
(null)
provider_responses
0
endpoint_id
"c9586d9d-97ff-40ca-ae94-22504d6f9b7e"
id
"7ba414fd-eb77-1afa-3fd1-4d6fe957d680"
is_byok
false
latency
89
model_permaslug
"x-ai/grok-4-fast"
provider_name
"xAI"
status
200
api_type
"completions"
id
"gen-1771617196-lIRu2gN0nbnz5Xx9dO8t"
upstream_id
"7ba414fd-eb77-1afa-3fd1-4d6fe957d680"
total_cost
0.00030545
cache_discount
0.00003225
upstream_inference_cost
0
provider_name
"xAI"
Evaluation details
Result
Evaluator
Details
Meta Data
0.03%
Matches word count
n/a
neededClean
false
words
230
14.97%
Dialogue to Total Word Ratio
Ratio: 61.74%, Deviation: 11.74%
neededClean
false
wordsTotal
230
wordsDialogue
142
7.5005%