NC Bench
Overview
About
Tests
Models
Model
Claude 3.7 Sonnet
Test
N-Length Sentences
Scenario
Write sentences with 20 words each
Run ID
2025-02-24-01JMX1740VS8AX94N3RFNQ0TM0
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
Detective Sarah Morgan stood at the edge of the crime scene, her eyes scanning the bloodstained floor methodically. Rain pounded against the windows of the abandoned warehouse, creating a rhythmic backdrop to the grim tableau before her. The victim lay sprawled across an antique desk, one hand clutching a torn photograph, the other frozen in midair. Medical examiner Dr. Reynolds crouched beside the body, his weathered face revealing nothing as he noted the peculiar wounds. "Killed approximately twelve hours ago, single puncture wound to the neck, but there's something odd about the entry point." Detective Morgan nodded silently, her attention drawn to a peculiar pattern of water droplets leading away from the scene. Officer Jenkins approached with evidence bags, his normally cheerful demeanor subdued by the macabre scene surrounding them all. "We found this hidden inside the victim's watch—a microchip containing encrypted data that nobody can seem to access." Through the broken skylight above, moonlight illuminated a strange symbol painted on the floor beneath the victim's body. Sarah's phone buzzed with a message from an unknown number: "The timekeeper knows why the blackbird sings at midnight."
id
"gen-1740436115-oKCb9RN9xXJWmSpVOQlK"
upstream_id
"msg_0129MXyKvrMRBQPG7kckZrj3"
total_cost
0.004107
cache_discount
(null)
provider_name
"Anthropic"
created_at
"2025-02-24T22:28:41.365322+00:00"
Monday, February 24th, 2025 at 10:28:41 PM GMT+00:00
model
"anthropic/claude-3-7-sonnet-20250219:beta"
app_id
182717
streamed
true
cancelled
false
latency
273
moderation_latency
(null)
generation_time
4708
tokens_prompt
42
tokens_completion
234
native_tokens_prompt
44
native_tokens_completion
265
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
0.004107
Evaluation details
Result
Evaluator
Details
Meta Data
46.5172%
Matches word count
n/a
neededClean
false
sentences
10
wordCounts
0
18
1
19
2
19
3
19
4
19
5
19
6
18
7
19
8
18
9
19