NC Bench
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Run: 2026-02-20-01KHY9X6Y26B4XVXYQ3VBZ0BG3
Run Details
Model:
Grok 4.1 Fast
Test:
Dialogue tags
Scenario:
Write 200 words with 50% dialogue
Duration:
6.7s
Cost:
$0.000312
Provider:
xAI
Evaluation summary
Score
Evaluator
Details Link
99.98%
Matches word count
(details)
38.25%
Dialogue to Total Word Ratio
(details)
69.1179%
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 rusty van, parked across from the suburban house decked out in streamers and a giant inflatable unicorn. A dog-eared party invite lay spread on the dashboard, circled in red marker. "Bill, this is gold," Molly whispered, eyes gleaming. "Timmy's turning six. Presents stacked like a Vegas jackpot—Xbox, bikes, that new drone everyone's buzzing about." Bill scratched his stubbled chin, peering through binoculars. "Kids, though. Screaming hordes. And parents. We need disguises. I'm thinking balloon animals." Molly snorted. "Brilliant! You twist wiener dogs while I snag the gift table. Entry: Crash the piñata game. Swing hard, candy flies, chaos reigns—we grab and dash." "What about the clown?" Bill asked, voice pitching up. "That freak's got a squirting flower. One spritz, we're soaked and busted." "Improvise! You distract with bad magic tricks. 'Abracadabra, where's my rabbit?' Poof—into the bushes with the swag." Bill grinned maniacally. "Haul it to the van in party bags. 'Thanks for the loot, kiddos!' Exit via bounce house—ultimate getaway bounce." Molly high-fived him. "Flawless. Tonight, we rob the rugrats blind." As sirens wailed distantly—unrelated, they hoped—the duo clinked coffee mugs, plotting their pint-sized perfect crime.
created_at
"2026-02-20T19:54:55.309Z"
2/20/2026, 7:54:55 PM
model
"x-ai/grok-4.1-fast"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
259
moderation_latency
(null)
generation_time
6521
tokens_prompt
77
tokens_completion
411
native_tokens_prompt
216
native_tokens_completion
583
native_tokens_completion_images
0
native_tokens_reasoning
281
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
0.00031205
router
(null)
provider_responses
0
endpoint_id
"9821aa0e-dce3-4c27-9716-161359123d0b"
id
"ee7a0b06-d928-77d0-ea0d-fab0d207d85f"
is_byok
false
latency
69
model_permaslug
"x-ai/grok-4.1-fast"
provider_name
"xAI"
status
200
api_type
"completions"
id
"gen-1771617295-j2L9HQXAX3YGghUHBWcs"
upstream_id
"ee7a0b06-d928-77d0-ea0d-fab0d207d85f"
total_cost
0.00031205
cache_discount
0.00002265
upstream_inference_cost
0
provider_name
"xAI"
Evaluation details
Result
Evaluator
Details
Meta Data
99.98%
Matches word count
n/a
neededClean
false
words
202
38.25%
Dialogue to Total Word Ratio
Ratio: 59.90%, Deviation: 9.90%
neededClean
false
wordsTotal
202
wordsDialogue
121
69.1179%