NC Bench
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Run: 2026-02-20-01KHY8PQFZMMKRSJMF5B2B1QY2
Run Details
Model:
Grok 4.1 Fast
Test:
Dialogue tags
Scenario:
Write 200 words with 90% dialogue
Duration:
7.7s
Cost:
$0.000315
Provider:
xAI
Evaluation summary
Score
Evaluator
Details Link
97.63%
Matches word count
(details)
41.42%
Dialogue to Total Word Ratio
(details)
69.5254%
Overall
Model input
User/Human
You are a author of comedic heist books. Please write a 200 word scene that has 90% 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 slammed the newspaper down on the dingy kitchen table. "Bill, look at this! The Johnsons' kid turns five tomorrow—whole backyard's a present fortress. Pinatas, bikes, a freaking pony! We're crashing that party." Bill squinted at the photo, chomping a stale donut. "Kids? Molly, those ankle-biters'll swarm us like piranhas. What's the play? Elf costumes?" "Nah, too festive," Molly snorted, sketching on a napkin. "We go as balloon animals. I twist into a giraffe, you a wiener dog. Sneak in during 'Happy Birthday,' grab the gift table while they're blind with cake." Bill chuckled. "Cake coma—genius! But the pony? That nag kicks like a mule. We lasso it for resale?" "Forget the pony, it'll neigh and blow our cover," Molly hissed. "Priorities: unwrap everything backstage. Blame it on the dog or some hyper toddler. Exit via bounce house—zip line the presents out." "Risky," Bill said, grinning. "What if a kid clings? 'Mommy, the balloon giraffe stole Barbie!'" Molly high-fived him. "Then we improv: 'It's a magic trick!' Load the van, split fifty-fifty. Richest thieves in kiddie land by dawn." Bill nodded. "Let's blow this joint—er, party."
created_at
"2026-02-20T19:33:54.32Z"
2/20/2026, 7:33:54 PM
model
"x-ai/grok-4.1-fast"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
974
moderation_latency
(null)
generation_time
7164
tokens_prompt
77
tokens_completion
371
native_tokens_prompt
216
native_tokens_completion
590
native_tokens_completion_images
0
native_tokens_reasoning
303
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
0.0003151
router
(null)
provider_responses
0
endpoint_id
"9821aa0e-dce3-4c27-9716-161359123d0b"
id
"b9751214-c55e-cbf7-4498-df584ac3cc9f"
is_byok
false
latency
629
model_permaslug
"x-ai/grok-4.1-fast"
provider_name
"xAI"
status
200
api_type
"completions"
id
"gen-1771616034-LWiMRR6ljBvQglsFEXOC"
upstream_id
"b9751214-c55e-cbf7-4498-df584ac3cc9f"
total_cost
0.0003151
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
193
41.42%
Dialogue to Total Word Ratio
Ratio: 80.31%, Deviation: 9.69%
neededClean
false
wordsTotal
193
wordsDialogue
155
69.5254%