NC Bench
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Run: 2026-02-20-01KHYAS7QBZY50WX3K9Y6W052V
Run Details
Model:
Grok 4.1 Fast
Test:
Dialogue tags
Scenario:
Write 200 words with 90% dialogue
Duration:
6.4s
Cost:
$0.000293
Provider:
xAI
Evaluation summary
Score
Evaluator
Details Link
98.71%
Matches word count
(details)
72.56%
Dialogue to Total Word Ratio
(details)
85.6354%
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 grimy diner table, blueprints of "Little Timmy's Birthday Bash Palace" spread out. Bill slurped his coffee, eyes gleaming. "Bill, this is genius," Molly whispered. "Hundred kids, richer than Croesus parents. Presents piled high—Xboxen, bikes, that new drone thingy. We hit at cake time, chaos central." Bill grinned, crumbs flying. "Exactly! I go in as the clown, red nose, floppy shoes. You’re the balloon lady. 'Hi-ho, kids! Gimme yer toys!' Nah, subtle. We rig the piñata with knockout gas." Molly snorted. "Knockout gas? You’ll poison the rugrats! Parents’ll call SWAT. No, we fake a fire alarm. Smoke bombs, everyone evacuates, we scoop and scoot in a unicorn van." "Unicorn van? Perfect cover!" Bill slapped the table. "I’ll wear the dad disguise—khakis, fanny pack. 'Hey, I’m Uncle Bob, here for the Lego Death Star.' You flirt with the bouncy castle guy." "Flirt? He’s twelve! Focus, numbnuts. Pinata drop at 3 PM sharp. Grab sacks labeled 'Party Favors.' Out by 3:05, before the sugar crash." Bill nodded furiously. "Sweet heist, Moll. We’ll be rolling in resale gold. Kids’ll think Santa came early!" "Or the Grinch," she cackled. "Let’s gear up."
created_at
"2026-02-20T20:10:13.622Z"
2/20/2026, 8:10:13 PM
model
"x-ai/grok-4.1-fast"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
273
moderation_latency
(null)
generation_time
6344
tokens_prompt
77
tokens_completion
383
native_tokens_prompt
216
native_tokens_completion
546
native_tokens_completion_images
0
native_tokens_reasoning
232
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
0.0002931
router
(null)
provider_responses
0
endpoint_id
"9821aa0e-dce3-4c27-9716-161359123d0b"
id
"b456ce43-07da-1c1b-7bb9-fa884a8a1136"
is_byok
false
latency
71
model_permaslug
"x-ai/grok-4.1-fast"
provider_name
"xAI"
status
200
api_type
"completions"
id
"gen-1771618213-P4XM3GHtNt8KlO4zBX94"
upstream_id
"b456ce43-07da-1c1b-7bb9-fa884a8a1136"
total_cost
0.0002931
cache_discount
0.0000231
upstream_inference_cost
0
provider_name
"xAI"
Evaluation details
Result
Evaluator
Details
Meta Data
98.71%
Matches word count
n/a
neededClean
false
words
194
72.56%
Dialogue to Total Word Ratio
Ratio: 82.47%, Deviation: 7.53%
neededClean
false
wordsTotal
194
wordsDialogue
160
85.6354%