NC Bench
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Run: 2026-02-20-01KHY7XH410GVHRSXDBCYCY8BG
Run Details
Model:
Grok 4.1 Fast
Test:
Dialogue tags
Scenario:
Write 200 words with 50% dialogue
Duration:
8.8s
Cost:
$0.000348
Provider:
xAI
Evaluation summary
Score
Evaluator
Details Link
97.63%
Matches word count
(details)
0.00%
Dialogue to Total Word Ratio
(details)
48.8138%
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 and Bill huddled in their dingy van, parked across from the suburban mansion pulsing with balloon arches and squealing kids. A crumpled invitation fluttered on the dashboard: "Timmy's 7th Birthday Extravaganza!" "Bill, it's perfect," Molly whispered, eyes gleaming. "Two hundred screaming rugrats, distracted by cake and clowns. We slip in as caterers, stuff presents into duffel bags, vanish before piñata time." Bill scratched his stubbled chin, sweating. "Caterers? Molly, I burn water! What if a kid asks for juice? Or worse, hugs me?" "Act natural, dummy. 'Here ya go, sport!' Grab the Lego sets, Barbies—easy ten grand resale. Parents too drunk on punch to notice." "But the birthday boy? Little Timmy with his puppy-dog eyes? He'll wail when his Xbox is gone!" Molly smirked, sketching a floor plan. "We'll leave him a balloon animal. Or blame the dog. In at 2 PM sharp, out by 2:15. Fellas on lookout in the ice cream truck." Bill gulped. "Ice cream truck? We're pros, not preschool pirates!" "Pros adapt, Bill. Candy ransom if needed. Now, rehearse: 'Happy birthday, kiddo—mind if I borrow your drone?'" Bill groaned. "This heist's nuts. But hell, those presents are calling my name." They clinked coffee mugs, plotting their pint-sized payday.
created_at
"2026-02-20T19:20:08.593Z"
2/20/2026, 7:20:08 PM
model
"x-ai/grok-4.1-fast"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
627
moderation_latency
(null)
generation_time
8579
tokens_prompt
77
tokens_completion
466
native_tokens_prompt
216
native_tokens_completion
656
native_tokens_completion_images
0
native_tokens_reasoning
348
native_tokens_cached
154
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
0.0003481
router
(null)
provider_responses
0
endpoint_id
"9821aa0e-dce3-4c27-9716-161359123d0b"
id
"7cca13ea-92cc-b48e-50dc-deff8043e02f"
is_byok
false
latency
141
model_permaslug
"x-ai/grok-4.1-fast"
provider_name
"xAI"
status
200
api_type
"completions"
id
"gen-1771615208-E7gb8piYGgLwkd523Di0"
upstream_id
"7cca13ea-92cc-b48e-50dc-deff8043e02f"
total_cost
0.0003481
cache_discount
0.0000231
upstream_inference_cost
0
provider_name
"xAI"
Evaluation details
Result
Evaluator
Details
Meta Data
97.63%
Matches word count
n/a
neededClean
false
words
207
0.00%
Dialogue to Total Word Ratio
Ratio: 72.46%, Deviation: 22.46%
neededClean
false
wordsTotal
207
wordsDialogue
150
48.8138%