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Run: 2025-04-14-01JRTSRHS639AYY70H423RH68Q
Run Details
Model:
GPT-4.1
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
Duration:
3.5s
Cost:
$0.001612
Provider:
OpenAI
Evaluation summary
Score
Evaluator
Details Link
71.90%
Matches word count
(details)
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
Thunder rattled the ancient windows as Eleanor Hastings entered the library, her heels clicking sharply across the marble-tiled floor. A solitary grandfather clock chimed midnight, its resonant echo swallowing the whispers of the assembled guests clutching crystal cocktail glasses. Rain drummed a frenetic rhythm on the roof above, mirroring Eleanor's racing heart as she scanned the lavishly furnished room. Cigar smoke lingered in curling tendrils, mingling with the musky scent of leather-bound tomes lining the dark mahogany shelves. Suddenly, a piercing scream shattered the uneasy silence, and every face turned in horror toward the velvet-draped billiards alcove. There, beneath a shattered decanter and scattered playing cards, Lord Wexley slumped motionless, a dark stain blooming beneath him. Eleanor’s breath caught in her throat as she realized someone in this very room was now a ruthless murderer.
id
"gen-1744656157-TIx1X1buYT9wCS1qUdTC"
upstream_id
"chatcmpl-BMJ3NqoENKONlfszuFWsMZGefnrwz"
total_cost
0.001612
cache_discount
(null)
provider_name
"OpenAI"
created_at
"2025-04-14T18:42:40.512399+00:00"
4/14/2025, 6:42:40 PM
model
"openai/gpt-4.1-2025-04-14"
app_id
182717
streamed
true
cancelled
false
latency
565
moderation_latency
75
generation_time
2178
tokens_prompt
42
tokens_completion
190
native_tokens_prompt
42
native_tokens_completion
191
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
0.001612
Evaluation details
Result
Evaluator
Details
Meta Data
71.90%
Matches word count
n/a
neededClean
false
sentences
7
wordCounts
0
19
1
20
2
20
3
19
4
19
5
19
6
19