NC Bench
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Run: 2026-02-20-01KHYA2CE5E83SJGWWTK18B14C
Run Details
Model:
Grok 4 Fast
Test:
Dialogue tags
Scenario:
Write 200 words with 90% dialogue
Duration:
5.0s
Cost:
$0.000286
Provider:
xAI
Evaluation summary
Score
Evaluator
Details Link
3.62%
Matches word count
(details)
1.13%
Dialogue to Total Word Ratio
(details)
2.3749%
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 rickety kitchen table, blueprints of the backyard sprawled out like a treasure map. Bill paced, twirling a fake mustache. "Listen, Molly, it's genius," Bill said, eyes gleaming. "Rich kid's birthday bash tomorrow. Piñata, cake, pile of presents taller than me. We crash the party, snag the loot, vanish like ghosts." Molly snorted, jabbing a finger at the diagram. "Ghosts? Bill, we're talking squealing brats and clown makeup. How do we blend? Show up as sad-face balloons?" Bill grinned, snapping his fingers. "Disguises! You in a frilly princess gown, me as the magic man with a top hat. We 'entertain' while palming gifts. Quick as a wink—stuff 'em in the van disguised as a bounce house truck." She arched an eyebrow. "And the kids? One spots us rifling through Barbie boxes, we're toast. Or worse, they think we're the piñata and bash us!" "Nah, we spike the punch with sleepy-time juice—kidding! Distraction: I juggle, you decoy with bad karaoke. Boom, presents ours. Think of the haul—Xbox, bikes, that diamond-encrusted teddy bear!" Molly laughed, sketching a escape route. "Fine, but if a toddler tags along in my princess skirt, you're changing diapers. This heist better not end in tears." "Only happy ones—from the parents when they realize Santa came early!" Bill whooped, high-fiving her.
created_at
"2026-02-20T19:57:44.783Z"
2/20/2026, 7:57:44 PM
model
"x-ai/grok-4-fast"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
1878
moderation_latency
(null)
generation_time
4842
tokens_prompt
77
tokens_completion
348
native_tokens_prompt
216
native_tokens_completion
551
native_tokens_completion_images
0
native_tokens_reasoning
231
native_tokens_cached
215
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
0.00028645
router
(null)
provider_responses
0
endpoint_id
"c9586d9d-97ff-40ca-ae94-22504d6f9b7e"
id
"69d5582c-c8f2-4cb7-5f17-de13f7547a18"
is_byok
false
latency
104
model_permaslug
"x-ai/grok-4-fast"
provider_name
"xAI"
status
200
api_type
"completions"
id
"gen-1771617464-1eJ68ClKnQLKjlUMPDtw"
upstream_id
"69d5582c-c8f2-4cb7-5f17-de13f7547a18"
total_cost
0.00028645
cache_discount
0.00003225
upstream_inference_cost
0
provider_name
"xAI"
Evaluation details
Result
Evaluator
Details
Meta Data
3.62%
Matches word count
n/a
neededClean
false
words
224
1.13%
Dialogue to Total Word Ratio
Ratio: 75.45%, Deviation: 14.55%
neededClean
false
wordsTotal
224
wordsDialogue
169
2.3749%