NC Bench
Overview
About
Tests
Models
Model
o4 Mini
Test
N-Length Sentences
Scenario
Write sentences with 20 words each
Run ID
2025-04-16-01JRZYX1ACZWG2EVMQQGV883EX
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
Midnight rain unexpectedly battered the silent mansion where Detective Blythe arrived after a cryptic phone call announcing sinister events outside. Inside the grand foyer, a shattered chandelier hung precariously above bloodstained marble floors where footprints led mysteriously down dim corridors. A single candle flickered beside an antique mirror reflecting trembling silhouettes that hinted at unseen dangers lurking within cold walls. Suddenly, a distant scream echoed through dusty hallways jolting everyone into icy silence and raising urgent questions about potential motives. Detective Blythe knelt beside a toppled chair, inspecting fresh footprints smeared in crimson while carefully noting each possible ominous detail. A lifeless body lay draped over a velvet sofa, its pale hand pointing accusingly towards a revolver resting on table.
id
"gen-1744829318-So1zfN1qM5wVFi1TumCs"
upstream_id
"chatcmpl-BN26I9X6UHiqiPjbOhsTYx2GLdHfT"
total_cost
0.0101079
cache_discount
(null)
provider_name
"OpenAI"
created_at
"2025-04-16T18:49:00.373525+00:00"
Wednesday, April 16th, 2025 at 6:49:00 PM GMT+00:00
model
"openai/o4-mini-2025-04-16"
app_id
182717
streamed
true
cancelled
false
latency
19985
moderation_latency
111
generation_time
21110
tokens_prompt
42
tokens_completion
2268
native_tokens_prompt
41
native_tokens_completion
2287
native_tokens_reasoning
2112
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
0.0101079
Evaluation details
Result
Evaluator
Details
Meta Data
100.0000%
Matches word count
n/a
neededClean
false
sentences
6
wordCounts
0
20
1
20
2
20
3
20
4
20
5
20