NC Bench
Overview
About
Tests
Models
Vendors
Run: 2026-02-20-01KHYADDZHPPQEHA8GCKJYJ6EW
Run Details
Model:
Grok 4.1 Fast
Test:
Dialogue tags
Scenario:
Write 200 words with 10% dialogue
Duration:
13.2s
Cost:
$0.000516
Provider:
xAI
Evaluation summary
Score
Evaluator
Details Link
98.71%
Matches word count
(details)
100.00%
Dialogue to Total Word Ratio
(details)
99.3551%
Overall
Model input
User/Human
You are a author of comedic heist books. Please write a 200 word scene that has 10% 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 cluttered van, parked across from the suburban McMansion pulsing with birthday balloons. A giant inflatable unicorn bobbed mockingly above the backyard fence, guarding what intel called a "present avalanche"—Lego sets, bikes, and gadgets worth a small fortune. Molly unrolled a napkin map, crayon-scribbled with entry points. "Clowns, Bill. We go in as clowns at cake time." Bill paled, fingering his fake red nose. "Clowns? Kids'll swarm us!" She smirked, outlining the grab: slip through the bounce house flap during the piñata frenzy, stuff a duffel with gift-wrapped loot while hyper toddlers chased candy. Parents too busy filming to notice. "Backup?" Bill whimpered. "Exploding whoopee cushions," Molly whispered. "Diversion city." He nodded, sketching a getaway route past the face-paint tent. They'd pose as entertainers, hired last-minute via a forged flyer. Load the van disguised as a party rental truck, peel out amid confetti chaos. Bill tested his honk-horn shoe—squeak!—and winced. Molly high-fived him. The sugar-rush pandemonium would be their cloak. By sunset, they'd fence the haul at Pawn-o-Rama, laughing all the way to margaritas. One snag: Bill's clown phobia. But hey, therapy was for losers. Heist o'clock ticked nearer.
created_at
"2026-02-20T20:03:46.809Z"
2/20/2026, 8:03:46 PM
model
"x-ai/grok-4.1-fast"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
781
moderation_latency
(null)
generation_time
13099
tokens_prompt
77
tokens_completion
410
native_tokens_prompt
216
native_tokens_completion
991
native_tokens_completion_images
0
native_tokens_reasoning
694
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
0.00051605
router
(null)
provider_responses
0
endpoint_id
"9821aa0e-dce3-4c27-9716-161359123d0b"
id
"d2084677-deaa-457d-8e10-7d52e91b2cbf"
is_byok
false
latency
489
model_permaslug
"x-ai/grok-4.1-fast"
provider_name
"xAI"
status
200
api_type
"completions"
id
"gen-1771617826-u0LHK0IK2Rd0khb6wqmq"
upstream_id
"d2084677-deaa-457d-8e10-7d52e91b2cbf"
total_cost
0.00051605
cache_discount
0.00002265
upstream_inference_cost
0
provider_name
"xAI"
Evaluation details
Result
Evaluator
Details
Meta Data
98.71%
Matches word count
n/a
neededClean
false
words
206
100.00%
Dialogue to Total Word Ratio
Ratio: 10.68%, Deviation: 0.68%
neededClean
false
wordsTotal
206
wordsDialogue
22
99.3551%