NC Bench
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Run: 2026-02-20-01KHY8FT9Y7AW6YC2RYVMFH047
Run Details
Model:
Grok 4.1 Fast
Test:
Dialogue tags
Scenario:
Write 200 words with 50% dialogue
Duration:
8.5s
Cost:
$0.000319
Provider:
xAI
Evaluation summary
Score
Evaluator
Details Link
99.74%
Matches word count
(details)
19.87%
Dialogue to Total Word Ratio
(details)
59.8086%
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 in their cramped hideout, a crumpled party invite splayed out like a treasure map. Pinatas dangled from the ceiling fan above, swaying mockingly. Bill paced, twirling a fake mustache. "Bill, listen," Molly whispered, eyes gleaming. "We crash as the balloon-twisting clowns. Kids love that crap. While they're squealing, we stuff presents into these oversized polka-dot bags." Bill snorted, adjusting his comically large bowtie. "Balloons? Genius! But what if the birthday brat spots us? 'Hey, mister, why's your nose redder than Rudolph's?'" Molly grinned, sketching a floor plan on a napkin. "We spike the punch with sleepy-time juice—non-lethal, just nap-inducing. Parents pass out, kids conk on the bounce house. We roll in, grab the haul: Xboxes, bikes, that pony piñata stuffed with cash!" Bill stopped pacing, rubbing his chin. "Pony piñata? Score! Getaway van disguised as the ice cream truck. Honk the tune backwards for code." "Perfect," Molly said, high-fiving him. "Operation Candy Heist at noon. No tears, all cheers—for us." Bill chuckled. "If we screw this, we'll be the clowns at kiddie jail." She laughed. "Then we'll juggle our way out." The fan spun faster, as if applauding their idiocy.
created_at
"2026-02-20T19:30:07.816Z"
2/20/2026, 7:30:07 PM
model
"x-ai/grok-4.1-fast"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
1960
moderation_latency
(null)
generation_time
8425
tokens_prompt
77
tokens_completion
394
native_tokens_prompt
216
native_tokens_completion
598
native_tokens_completion_images
0
native_tokens_reasoning
296
native_tokens_cached
153
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
0.00031925
router
(null)
provider_responses
0
endpoint_id
"9821aa0e-dce3-4c27-9716-161359123d0b"
id
"5e3260ed-d1dc-f0f2-12d8-6d1b879863fc"
is_byok
false
latency
1755
model_permaslug
"x-ai/grok-4.1-fast"
provider_name
"xAI"
status
200
api_type
"completions"
id
"gen-1771615807-THPH5f9AYpiIpCVIyU07"
upstream_id
"5e3260ed-d1dc-f0f2-12d8-6d1b879863fc"
total_cost
0.00031925
cache_discount
0.00002295
upstream_inference_cost
0
provider_name
"xAI"
Evaluation details
Result
Evaluator
Details
Meta Data
99.74%
Matches word count
n/a
neededClean
false
words
204
19.87%
Dialogue to Total Word Ratio
Ratio: 61.27%, Deviation: 11.27%
neededClean
false
wordsTotal
204
wordsDialogue
125
59.8086%