NC Bench
Overview
About
Tests
Models
Vendors
Run: 2026-02-20-01KHY88TYVA53TJG6AH56KQET4
Run Details
Model:
Grok 4.1 Fast
Test:
Dialogue tags
Scenario:
Write 200 words with 90% dialogue
Duration:
8.6s
Cost:
$0.000379
Provider:
xAI
Evaluation summary
Score
Evaluator
Details Link
100.00%
Matches word count
(details)
99.19%
Dialogue to Total Word Ratio
(details)
99.5966%
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 leaned over the crumpled party invite, grinning like a fox in a henhouse. "Bill, it's perfect. Little Timmy's bash—fifty screaming rugrats, mountain of presents under that balloon arch." Bill wiped sweat from his brow. "Presents? Molly, those are mostly Barbies and Legos. What's the fence gonna say? 'Stolen slime kits'?" "Slime sells, you lug! We crash as the magician and his assistant. I do the disappearing act on the gift table while you distract with card tricks." "Card tricks? Last time you sawed me in half, I limped for a week! What about the parents? And the birthday boy? He'll wail like a siren." Molly cackled. "We spike the punch with sleepy-time juice—non-lethal, promise. Kids chase the piñata, boom, we scoop and scoot in the bounce house truck." Bill gulped. "Bounce house? I'm sixty-two! One wrong bounce and I'm pancakes. And if a toddler rats us out? 'Mommy, the clown stole my Fortnite skins!'" "Relax, we'll wear those creepy mascot suits—nobody questions Elmo. In, out in ten. Richest haul since the Easter Bunny heist." Bill sighed. "Fine. But if I get glitter-bombed, you're waxing the van." "Deal. Tomorrow, we gift-wrap crime!"
created_at
"2026-02-20T19:26:19.112Z"
2/20/2026, 7:26:19 PM
model
"x-ai/grok-4.1-fast"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
117
moderation_latency
(null)
generation_time
8485
tokens_prompt
77
tokens_completion
375
native_tokens_prompt
216
native_tokens_completion
718
native_tokens_completion_images
0
native_tokens_reasoning
428
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
0.0003791
router
(null)
provider_responses
0
endpoint_id
"9821aa0e-dce3-4c27-9716-161359123d0b"
id
"83c02385-4dc8-dbd2-2460-501f480a7d1e"
is_byok
false
latency
104
model_permaslug
"x-ai/grok-4.1-fast"
provider_name
"xAI"
status
200
api_type
"completions"
id
"gen-1771615579-7um0YrGoCg8JiMxEKolM"
upstream_id
"83c02385-4dc8-dbd2-2460-501f480a7d1e"
total_cost
0.0003791
cache_discount
0.0000231
upstream_inference_cost
0
provider_name
"xAI"
Evaluation details
Result
Evaluator
Details
Meta Data
100.00%
Matches word count
n/a
neededClean
false
words
200
99.19%
Dialogue to Total Word Ratio
Ratio: 87.00%, Deviation: 3.00%
neededClean
false
wordsTotal
200
wordsDialogue
174
99.5966%