NC Bench
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Run: 2026-02-16-01KHM5S9DT4X0RN6FZS26N3QM3
Run Details
Model:
DeepSeek V3 (2024-12-26)
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
Duration:
8.0s
Cost:
$0.000187
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 moon hung low, casting shadows on the cobblestone street where the body lay motionless, pale and cold. Detective Clara Hayes stepped out of her car, her breath visible in the chilly air as she approached the grim scene. Blood pooled beneath the victim, forming a dark halo around the head, its origin still unclear. Clara knelt, gloved hands brushing against the icy ground, searching for clues amidst the chaos of footprints. A shattered watch lay inches from the body, its hands frozen at the exact moment of death. She glanced up, scanning the quiet street illuminated by flickering streetlights, sensing someone watching from the darkness beyond. A faint sound echoed—a soft shuffle—before disappearing into the night, leaving only silence and unanswered questions behind. Clara stood, dusting off her coat, and turned to her partner, who waited with a solemn expression nearby. “Call the coroner,” she said, her voice steady despite the weight of the scene before her.
created_at
"2026-02-16T21:30:37.067382+00:00"
2/16/2026, 9:30:37 PM
model
"deepseek/deepseek-chat-v3"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
212
moderation_latency
(null)
generation_time
8020
tokens_prompt
46
tokens_completion
248
native_tokens_prompt
38
native_tokens_completion
197
native_tokens_completion_images
(null)
native_tokens_reasoning
0
native_tokens_cached
0
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
0.00018749
router
(null)
provider_responses
0
id
"chatcmpl-RDhtMjOaKic8dZ14kS4n2UQC"
status
200
is_byok
false
latency
47
endpoint_id
"5294d55f-9012-496b-8f22-8cc919432dcd"
provider_name
"DeepInfra"
model_permaslug
"deepseek/deepseek-chat-v3"
api_type
"completions"
id
"gen-1771277428-ocX7i3SiQRoWWLMheo5L"
upstream_id
"chatcmpl-RDhtMjOaKic8dZ14kS4n2UQC"
total_cost
0.00018749
cache_discount
(null)
upstream_inference_cost
0
provider_name
"DeepInfra"
Evaluation details
Result
Evaluator
Details
Meta Data
18.2440%
Matches word count
n/a
neededClean
false
sentences
9
wordCounts
0
18
1
21
2
16
3
17
4
17
5
18
6
19
7
18
8
16