NC Bench
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Run: 2026-02-20-01KHY9MTS0WYWD9CBS23820CNM
Run Details
Model:
Grok 4.1 Fast
Test:
Dialogue tags
Scenario:
Write 200 words with 90% dialogue
Duration:
6.8s
Cost:
$0.000336
Provider:
xAI
Evaluation summary
Score
Evaluator
Details Link
35.00%
Matches word count
(details)
78.30%
Dialogue to Total Word Ratio
(details)
56.6498%
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" spread out. "Okay, Bill, we hit the party at peak chaos—cake time. I go in as Pinata Princess, you as Uncle Goofy the Magician." Bill slurped his coffee. "Genius! Kids'll swarm me for tricks. While they're oohing at the disappearing rabbit—poof!—I vanish the gift table into my magic sack." "Exactly," Molly grinned. "Twenty rich brats, parents loaded. Presents worth ten grand easy—Xboxen, bikes, that drone Timmy wants. We stuff 'em in oversized balloon animals. Float 'em right out the window!" Bill chuckled. "What about the rugrats? They'll cry bloody murder." "Pfft, bribe 'em with candy bombs. 'Who wants extra Skittles?' Boom, distraction. Then we trigger the fire alarm—parents panic, we slip away in the bounce house truck." "Risky with the clown car getaway," Bill said, munching fries. "But imagine the haul! Sell it all on the dark web." Molly high-fived him. "Heist of the century. No capes, just cake smears and kiddie tears. Let's suit up!" Bill nodded. "To the motherlode!" (198 words)
created_at
"2026-02-20T19:50:20.713Z"
2/20/2026, 7:50:20 PM
model
"x-ai/grok-4.1-fast"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
325
moderation_latency
(null)
generation_time
6705
tokens_prompt
77
tokens_completion
357
native_tokens_prompt
216
native_tokens_completion
631
native_tokens_completion_images
0
native_tokens_reasoning
355
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
0.00033605
router
(null)
provider_responses
0
endpoint_id
"9821aa0e-dce3-4c27-9716-161359123d0b"
id
"167cef74-8cde-b05b-0c46-9ed4a820e88d"
is_byok
false
latency
144
model_permaslug
"x-ai/grok-4.1-fast"
provider_name
"xAI"
status
200
api_type
"completions"
id
"gen-1771617020-bWU0ONwFT4IvwGdQC0QT"
upstream_id
"167cef74-8cde-b05b-0c46-9ed4a820e88d"
total_cost
0.00033605
cache_discount
0.00002265
upstream_inference_cost
0
provider_name
"xAI"
Evaluation details
Result
Evaluator
Details
Meta Data
35.00%
Matches word count
n/a
neededClean
false
words
182
78.30%
Dialogue to Total Word Ratio
Ratio: 82.97%, Deviation: 7.03%
neededClean
false
wordsTotal
182
wordsDialogue
151
56.6498%