NC Bench
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Run: 2026-02-20-01KHY9S2ZE0JYV8J3Z8KZ771Q1
Run Details
Model:
Grok 4.1 Fast
Test:
Dialogue tags
Scenario:
Write 200 words with 90% dialogue
Duration:
6.8s
Cost:
$0.000305
Provider:
xAI
Evaluation summary
Score
Evaluator
Details Link
99.74%
Matches word count
(details)
89.19%
Dialogue to Total Word Ratio
(details)
94.4652%
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 hunched over the grimy diner table, blueprints of "Little Timmy's Birthday Bash" spread out. "Bill, this is insane. A kids' party? We're talking squeaky toys and half-eaten cake." Bill grinned, chomping a fry. "Insane? Genius! No security— just snot-nosed brats and clown tears. We hit at piñata time. Chaos covers our grab." "Grab what? Barbies and slime eggs?" Molly snorted. "Rare stuff, Mol! Timmy's loaded—parents drop Rolexes in gift bags. We dress as entertainers. You: balloon princess. Me: face-painter with a sack hidden in my overalls." Molly smirked. "Balloons? You'll pop 'em fleeing. And the cake? Sticky getaway nightmare." "Nah, rented van disguised as the bounce house truck. Park out back, snag presents during 'musical chairs mayhem.' Kids chase each other—we swipe the pile. In, out in five." "What if a toddler IDs us? 'Mommy, balloon lady stole my Lego Death Star!'" Bill laughed. "We bribe with candy. Or drop a real piñata bomb—candy explosion, diversion supreme!" Molly sighed, folding the map. "Fine. But if I end up pied in the face, you're eating the evidence." "Deal! Heist of the century—presents pilfered, piñata pandemonium!" Bill clinked his soda.
created_at
"2026-02-20T19:52:40.189Z"
2/20/2026, 7:52:40 PM
model
"x-ai/grok-4.1-fast"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
359
moderation_latency
(null)
generation_time
6666
tokens_prompt
77
tokens_completion
386
native_tokens_prompt
216
native_tokens_completion
589
native_tokens_completion_images
0
native_tokens_reasoning
285
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
0.00030545
router
(null)
provider_responses
0
endpoint_id
"9821aa0e-dce3-4c27-9716-161359123d0b"
id
"656e64d3-43e6-ac2e-5cc4-f703e01e3886"
is_byok
false
latency
127
model_permaslug
"x-ai/grok-4.1-fast"
provider_name
"xAI"
status
200
api_type
"completions"
id
"gen-1771617160-uFRWxu2C4kvCQX9Phtwe"
upstream_id
"656e64d3-43e6-ac2e-5cc4-f703e01e3886"
total_cost
0.00030545
cache_discount
0.00003225
upstream_inference_cost
0
provider_name
"xAI"
Evaluation details
Result
Evaluator
Details
Meta Data
99.74%
Matches word count
n/a
neededClean
false
words
196
89.19%
Dialogue to Total Word Ratio
Ratio: 84.18%, Deviation: 5.82%
neededClean
false
wordsTotal
196
wordsDialogue
165
94.4652%