NC Bench
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Run: 2026-02-20-01KHY81YEA5WK3W7K9DB89PVDB
Run Details
Model:
Grok 4.1 Fast
Test:
Dialogue tags
Scenario:
Write 200 words with 50% dialogue
Duration:
8.3s
Cost:
$0.000284
Provider:
xAI
Evaluation summary
Score
Evaluator
Details Link
14.30%
Matches word count
(details)
0.16%
Dialogue to Total Word Ratio
(details)
7.2316%
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 kitchen table, her greasy pizza box serving as a map of the suburban backyard. Bill paced, twirling a rubber spider from last Halloween's loot. "Listen, Bill," Molly whispered, eyes gleaming. "Timmy's turning six. Piñata, cake, and a mountain of presents under that superhero bounce house. We hit at cake time—kids distracted, parents boozed up." Bill snorted, tripping over a cat toy. "Brilliant, Mol. But how? Dress as clowns? I'd look stupider than usual." "Exactly!" Molly slapped the table. "You’re Bozo the Thief, I’m Sparkles. Juggle in, snatch the gift table while they cheer. Bounce house covers our exit—zip line the presents out!" Bill rubbed his chin. "Risky. What if Timmy cries? Or that pony shows up?" "Pony’s our decoy! Untie it, chaos ensues. We grab and dash in the ice cream truck we stole. Resell the haul online—'Gently used kid swag!' Easy ten grand." Bill grinned, high-fiving her. "You’re a genius, Mol. World’s sneakiest party crashers." "Damn right. Tonight, we make birthdays weep!" They clinked beer cans, plotting their pint-sized payday.
created_at
"2026-02-20T19:22:33.3Z"
2/20/2026, 7:22:33 PM
model
"x-ai/grok-4.1-fast"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
529
moderation_latency
(null)
generation_time
8253
tokens_prompt
77
tokens_completion
360
native_tokens_prompt
216
native_tokens_completion
546
native_tokens_completion_images
0
native_tokens_reasoning
273
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
0.00028395
router
(null)
provider_responses
0
endpoint_id
"9821aa0e-dce3-4c27-9716-161359123d0b"
id
"aaeeae22-3124-db3d-9684-100361b1ea59"
is_byok
false
latency
289
model_permaslug
"x-ai/grok-4.1-fast"
provider_name
"xAI"
status
200
api_type
"completions"
id
"gen-1771615353-NbxPW2eIs5N8vuYRkFK2"
upstream_id
"aaeeae22-3124-db3d-9684-100361b1ea59"
total_cost
0.00028395
cache_discount
0.00003225
upstream_inference_cost
0
provider_name
"xAI"
Evaluation details
Result
Evaluator
Details
Meta Data
14.30%
Matches word count
n/a
neededClean
false
words
179
0.16%
Dialogue to Total Word Ratio
Ratio: 65.92%, Deviation: 15.92%
neededClean
false
wordsTotal
179
wordsDialogue
118
7.2316%