NC Bench
Overview
About
Tests
Models
Vendors
Run: 2026-02-16-01KHM5Y9408PB3JXVYQ1ETPVXE
Run Details
Model:
DeepSeek V3 (2025-03-24)
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
Duration:
24.3s
Cost:
$0.000178
Provider:
DeepInfra
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 rain tapped softly on the windowpane, a steady rhythm masking distant footsteps in the empty street. Detective Harlan Pierce adjusted his trench coat collar, his sharp eyes scanning the dimly lit alley for any signs of movement. A single flickering streetlamp cast long shadows, revealing a crumpled figure slumped against the damp brick wall. The victim’s face was pale, lips parted in a silent scream, one hand clutching a torn photograph. Pierce knelt beside the body, gloved fingers brushing against a silver locket glinting faintly in the murky light. The locket’s hinge was broken, its interior hollow except for a single drop of dried blood. A faint scent of lavender lingered in the air, out of place amidst the alley’s stale odors. Pierce’s jaw tightened as he spotted a smudged footprint leading toward the alley’s shadowed exit. The clock tower chimed midnight, its mournful toll echoing through the deserted streets like a warning. Someone had planned this carefully, leaving just enough clues to taunt him—but not enough to slip.
created_at
"2026-02-16T21:33:36.858573+00:00"
2/16/2026, 9:33:36 PM
model
"deepseek/deepseek-chat-v3-0324"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
381
moderation_latency
(null)
generation_time
24303
tokens_prompt
46
tokens_completion
266
native_tokens_prompt
38
native_tokens_completion
223
native_tokens_completion_images
(null)
native_tokens_reasoning
0
native_tokens_cached
16
num_media_prompt
(null)
num_input_audio_prompt
(null)
num_media_completion
0
num_search_results
(null)
origin
"https://ncbench.com/"
is_byok
false
finish_reason
"stop"
native_finish_reason
"stop"
usage
0.00017827
router
(null)
provider_responses
0
id
"chatcmpl-RQfIn1LFcF8lYYjQAW8tyuTL"
status
200
is_byok
false
latency
84
endpoint_id
"820376cb-f110-4d56-ab52-5bd6ca269420"
provider_name
"DeepInfra"
model_permaslug
"deepseek/deepseek-chat-v3-0324"
api_type
"completions"
id
"gen-1771277591-EQvCcrCsWg9zicOni6GN"
upstream_id
"chatcmpl-RQfIn1LFcF8lYYjQAW8tyuTL"
total_cost
0.00017827
cache_discount
0.00000104
upstream_inference_cost
0
provider_name
"DeepInfra"
Evaluation details
Result
Evaluator
Details
Meta Data
7.9809%
Matches word count
n/a
neededClean
false
sentences
10
wordCounts
0
17
1
21
2
17
3
17
4
18
5
16
6
17
7
15
8
16
9
17