NC Bench
Overview
About
Tests
Models
Model
o4 Mini High
Test
N-Length Sentences
Scenario
Write sentences with 20 words each
Run ID
2025-04-16-01JRZYWQDPZS4CAEJDG55F729Q
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 thunder rolled through the abandoned manor corridors, illuminating dusty portraits while shadows danced beneath flickering candlelight, whispering forgotten memories. Detective Eleanor Sterling arrived silently, her polished shoes echoing across marble floors as candle flames guttered ominously overhead, heightening suspense. She paused by an ornate oak door, steeling her nerves before turning the brass handle toward looming unspeakable violence inside. A sudden gasp echoed through the hallway, voice trembling with horror before sinking into ghastly silence that chilled every spine. Eleanor’s breath caught in her throat as she stepped inside, confronted by a lifeless figure sprawled beneath crimson-stained Persian carpet. Moonlight filtered through tall windows, dust motes dancing above the body where unnatural stillness reigned under the opulent, glistening chandelier. Blood pooled around the victim’s head, its dark sheen reflecting pale moonbeams like sinister jewels set against cold marble floor. Eleanor knelt carefully, examining the gruesome wound while her trained eyes noted every clue concealed within the decadent drawing room.
id
"gen-1744829308-cMinojhiSvBh8WKxWAsK"
upstream_id
"chatcmpl-BN268hktbD91V7wUZiQMef1gabkh4"
total_cost
0.0129195
cache_discount
(null)
provider_name
"OpenAI"
created_at
"2025-04-16T18:49:01.922269+00:00"
Wednesday, April 16th, 2025 at 6:49:01 PM GMT+00:00
model
"openai/o4-mini-high-2025-04-16"
app_id
182717
streamed
true
cancelled
false
latency
30285
moderation_latency
122
generation_time
32811
tokens_prompt
42
tokens_completion
2907
native_tokens_prompt
41
native_tokens_completion
2926
native_tokens_reasoning
2688
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
0.0129195
Evaluation details
Result
Evaluator
Details
Meta Data
95.0816%
Matches word count
n/a
neededClean
false
sentences
8
wordCounts
0
20
1
20
2
20
3
20
4
21
5
20
6
20
7
20