NC Bench
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Run: 2026-02-20-01KHY946NBTPMWWT2YGB5TVXJD
Run Details
Model:
Grok 4.1 Fast
Test:
Dialogue tags
Scenario:
Write 200 words with 50% dialogue
Duration:
6.7s
Cost:
$0.000321
Provider:
xAI
Evaluation summary
Score
Evaluator
Details Link
99.74%
Matches word count
(details)
97.26%
Dialogue to Total Word Ratio
(details)
98.5035%
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 squeezed into a rusty van parked across from the suburban McMansion, blueprints of the backyard party spread across the dashboard like a picnic gone wrong. Streamers and balloons bobbed in the breeze, promising a haul of shiny toys ripe for the taking. "Bill, look at this spread," Molly whispered, jabbing a finger at the flyer. "Timmy's turning five—parents loaded, kids oblivious. We hit at cake time, grab the gift table, and vanish." Bill scratched his stubbled chin, eyes wide. "Kids? Screaming hordes? We'll need disguises. Clowns?" Molly snorted. "Clowns? Genius! Red noses, floppy shoes. I'll juggle the presents out while you distract with balloon animals." "What if the piñata foils us?" Bill fretted. "One whack, candy explosion—chaos!" "Perfect cover!" Molly grinned. "We 'accidentally' smash it early, scoop toys amid the frenzy. Pin the tail on the donkey? Nah, pin the loot on the thieves." Bill chuckled nervously. "And the cake? Evidence trail?" "Eat it," Molly said. "Or blame the dog. In, out in five—richest kiddie heist ever." Bill nodded, pumping a fist. "To the sugarplum plunder!" As sirens wailed distantly—fireworks test?—they high-fived, plotting their pint-sized perfect crime.
created_at
"2026-02-20T19:41:15.83Z"
2/20/2026, 7:41:15 PM
model
"x-ai/grok-4.1-fast"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
330
moderation_latency
(null)
generation_time
6557
tokens_prompt
77
tokens_completion
397
native_tokens_prompt
216
native_tokens_completion
600
native_tokens_completion_images
0
native_tokens_reasoning
307
native_tokens_cached
151
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
0.00032055
router
(null)
provider_responses
0
endpoint_id
"9821aa0e-dce3-4c27-9716-161359123d0b"
id
"e3de34ad-c960-4a42-3722-0b30f8b788be"
is_byok
false
latency
84
model_permaslug
"x-ai/grok-4.1-fast"
provider_name
"xAI"
status
200
api_type
"completions"
id
"gen-1771616475-8qJpA2qH2A9vKRsHDjNc"
upstream_id
"e3de34ad-c960-4a42-3722-0b30f8b788be"
total_cost
0.00032055
cache_discount
0.00002265
upstream_inference_cost
0
provider_name
"xAI"
Evaluation details
Result
Evaluator
Details
Meta Data
99.74%
Matches word count
n/a
neededClean
false
words
196
97.26%
Dialogue to Total Word Ratio
Ratio: 54.08%, Deviation: 4.08%
neededClean
false
wordsTotal
196
wordsDialogue
106
98.5035%