NC Bench
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Run: 2026-02-20-01KHY81TTST4YQT7E115YRK2B6
Run Details
Model:
Grok 4 Fast
Test:
Dialogue tags
Scenario:
Write 200 words with 50% dialogue
Duration:
8.7s
Cost:
$0.000283
Provider:
xAI
Evaluation summary
Score
Evaluator
Details Link
27.17%
Matches word count
(details)
0.00%
Dialogue to Total Word Ratio
(details)
13.5833%
Overall
Model input
User/Human
You are a author of comedic heist books. Please write a 200 word scene that has 50% 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 hunched over the rickety kitchen table, blueprints of the community center spread out like a treasure map. Bill paced, munching on a pilfered cookie, crumbs dusting his black turtleneck. "Listen, Bill," Molly whispered, jabbing a finger at the diagram. "The party's at noon. Kids everywhere, piñatas bursting with candy. We slip in as clowns—red noses, squeaky shoes. No one suspects the entertainment." Bill snorted, spraying crumbs. "Clowns? Molly, I'm allergic to face paint! Last time I dressed up, I looked like a deranged oompa-loompah. What if a kid tugs my wig?" "Exactly!" she grinned. "Distraction gold. While they're chasing balloon animals, we hit the present pile under the cake table. Giant teddy bears, shiny bikes—easy grab. Stuff 'em in oversized gift bags labeled 'Party Favors Return'." Bill stopped pacing, eyes widening. "But the parents? That Karen mom with the minivan army? She'll chase us with her PTA wrath." Molly chuckled. "We'll rig the bounce house to deflate. Chaos! Kids bounce out the presents, we scoop 'em up in the melee. Out the back by two, flogging toys on the black market by dinner." "Genius," Bill admitted, fist-bumping her. "Just no singing 'Happy Birthday'—I sound like a cat in a blender." As sirens wailed faintly outside, they high-fived, plotting their pint-sized payday.
created_at
"2026-02-20T19:22:29.605Z"
2/20/2026, 7:22:29 PM
model
"x-ai/grok-4-fast"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
5986
moderation_latency
(null)
generation_time
8522
tokens_prompt
77
tokens_completion
347
native_tokens_prompt
216
native_tokens_completion
530
native_tokens_completion_images
0
native_tokens_reasoning
217
native_tokens_cached
171
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
0.00028255
router
(null)
provider_responses
0
endpoint_id
"c9586d9d-97ff-40ca-ae94-22504d6f9b7e"
id
"8fdbcf04-9aec-d3cf-8fee-ea253ede9202"
is_byok
false
latency
4357
model_permaslug
"x-ai/grok-4-fast"
provider_name
"xAI"
status
200
api_type
"completions"
id
"gen-1771615349-qZY2us2iMlTY6BQZyRtv"
upstream_id
"8fdbcf04-9aec-d3cf-8fee-ea253ede9202"
total_cost
0.00028255
cache_discount
0.00002565
upstream_inference_cost
0
provider_name
"xAI"
Evaluation details
Result
Evaluator
Details
Meta Data
27.17%
Matches word count
n/a
neededClean
false
words
219
0.00%
Dialogue to Total Word Ratio
Ratio: 68.49%, Deviation: 18.49%
neededClean
false
wordsTotal
219
wordsDialogue
150
13.5833%