NC Bench
Overview
About
Tests
Models
Model
Claude 3.7 Sonnet
Test
N-Length Sentences
Scenario
Write sentences with 20 words each
Run ID
2025-02-24-01JMWZZJPSMXJSPRNFDMK5XE45
Model input
User/Human
Please write the opening scene of a murder mystery where each sentence has exactly 20 words. Please make sure that each sentence has the same length. Only return the opening itself.
Model response
Messages
Meta
AI
# The Vanishing Hour Detective Morgan surveyed the crime scene, her trained eyes picking up subtle clues others might easily have overlooked. A grandfather clock stood silently in the corner, its hands frozen at precisely three minutes past midnight. The victim lay sprawled across an antique Persian rug, one arm extended as if reaching for something just beyond grasp. Blood had congealed around the silver letter opener embedded in his chest, forming a dark medallion on his silk pajamas. Raindrops tapped gently against tall windows overlooking the garden where someone had recently trampled through carefully cultivated rose bushes. The house remained eerily quiet except for the occasional creak of floorboards beneath the weight of forensic technicians. "He was expecting his killer," Morgan murmured, noting the two crystal glasses of whiskey sitting untouched on the mahogany desk. Nothing appeared stolen, yet drawers hung open haphazardly, their contents strewn about as if someone had been searching frantically. The victim's secretary discovered the body early this morning when he failed to appear for an important business meeting. Detective Morgan knelt beside the corpse, wondering what secrets this powerful man had taken with him to the grave.
id
"gen-1740434820-tVOvqXjPLj9VE9FQHnZx"
upstream_id
"msg_01UKrtu96aCCoX76qtbaKZin"
total_cost
0.004242
cache_discount
(null)
provider_name
"Anthropic"
created_at
"2025-02-24T22:07:06.260459+00:00"
Monday, February 24th, 2025 at 10:07:06 PM GMT+00:00
model
"anthropic/claude-3-7-sonnet-20250219:beta"
app_id
182717
streamed
true
cancelled
false
latency
434
moderation_latency
(null)
generation_time
5077
tokens_prompt
42
tokens_completion
236
native_tokens_prompt
44
native_tokens_completion
274
native_tokens_reasoning
0
num_media_prompt
(null)
num_media_completion
(null)
num_search_results
(null)
origin
"https://ncbench.com/"
is_byok
false
finish_reason
"stop"
native_finish_reason
"stop"
usage
0.004242
Evaluation details
Result
Evaluator
Details
Meta Data
51.8900%
Matches word count
n/a
neededClean
false
sentences
11
wordCounts
0
4
1
18
2
17
3
20
4
20
5
19
6
18
7
20
8
19
9
19
10
19