NC Bench
Overview
About
Tests
Models
Model
o4 Mini
Test
N-Length Sentences
Scenario
Write sentences with 10 words each
Run ID
2025-04-16-01JRZYWPPHED49K679CCP5PHQJ
Model input
User/Human
Please write the opening scene of a murder mystery where each sentence has exactly 10 words. Please make sure that each sentence has the same length. Only return the opening itself.
Model response
Messages
Meta
AI
The grand manor stood silent beneath the moon’s pale glow. Lightning cracked across the sky, illuminating dusty portraits along hallway. A single candle flickered, casting shadows dancing menacingly against walls. Footsteps echoed softly somewhere beyond the library’s heavy oak doors. A chilling silence followed, broken only by distant thunder’s rumble. Detective Marlow stepped inside, observing the scene with careful scrutiny. Bloodstains glistened under candlelight beside a pale, lifeless, open-eyed corpse. A broken pocket watch lay motionless next to sprigs lavender. Marlow knelt slowly, examining the watch’s cracked glass face carefully. He whispered, “Someone here tonight orchestrated this macabre, calculated act.”
id
"gen-1744829307-ad4RSKMqodViMt6BTcAC"
upstream_id
"chatcmpl-BN268d94SlFSr9enzeiCPZn2z5kHh"
total_cost
0.0084051
cache_discount
(null)
provider_name
"OpenAI"
created_at
"2025-04-16T18:48:50.067643+00:00"
Wednesday, April 16th, 2025 at 6:48:50 PM GMT+00:00
model
"openai/o4-mini-2025-04-16"
app_id
182717
streamed
true
cancelled
false
latency
21121
moderation_latency
118
generation_time
21737
tokens_prompt
42
tokens_completion
1881
native_tokens_prompt
41
native_tokens_completion
1900
native_tokens_reasoning
1728
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
0.0084051
Evaluation details
Result
Evaluator
Details
Meta Data
97.4082%
Matches word count
n/a
neededClean
false
sentences
10
wordCounts
0
10
1
10
2
10
3
10
4
10
5
10
6
11
7
10
8
10
9
10