NC Bench
Overview
About
Tests
Models
Model
Claude 3.7 Sonnet
Test
N-Length Sentences
Scenario
Write sentences with 20 words each
Run ID
2025-02-24-01JMX26R7G27H9D6SX5A9D9D9E
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 old mansion creaked and settled in the darkness as thunder rolled ominously across the brooding night sky. Detective Sarah Morgan pulled her coat tight against the chill, her footsteps echoing on the rain-slicked cobblestone path. Yellow police tape fluttered in the wind like macabre party decorations around the grand entrance of Ravenscroft Manor. Inside, the victim lay sprawled across an antique Persian rug, one hand reaching toward something only he could see. Blood had pooled beneath the body, seeping into the intricate patterns of the expensive textile like dark artistic intention. The victim's face remained frozen in an expression of surprise, as if death had arrived completely unexpected that evening. "Time of death approximately nine thirty," muttered the medical examiner, looking up from the cooling corpse with practiced detachment. Sarah noticed a crumpled note clutched in the victim's other hand, partially hidden beneath the weight of his body. The room held five suspects, each with secrets darker than the storm outside, each avoiding contact with the others.
id
"gen-1740437152-VCmtM7F3bkUclZLl48Uf"
upstream_id
"msg_013c8tYAEu3fBHSK7FkeLDVL"
total_cost
0.003717
cache_discount
(null)
provider_name
"Anthropic"
created_at
"2025-02-24T22:45:57.355449+00:00"
Monday, February 24th, 2025 at 10:45:57 PM GMT+00:00
model
"anthropic/claude-3-7-sonnet-20250219:beta"
app_id
182717
streamed
true
cancelled
false
latency
388
moderation_latency
(null)
generation_time
3951
tokens_prompt
42
tokens_completion
211
native_tokens_prompt
44
native_tokens_completion
239
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
0.003717
Evaluation details
Result
Evaluator
Details
Meta Data
50.1821%
Matches word count
n/a
neededClean
false
sentences
9
wordCounts
0
18
1
19
2
18
3
19
4
19
5
19
6
19
7
19
8
19