NC Bench
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Run: 2026-02-16-01KHM5VKQHGKYTZMRZD7RKVK15
Run Details
Model:
DeepSeek V3 (2025-03-24)
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
Duration:
6.1s
Cost:
$0.000225
Provider:
SiliconFlow
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 fog clung thickly to the cobblestones, muffling footsteps as shadows danced along the narrow alley’s damp walls. A lone figure staggered into view, clutching their chest with trembling hands before collapsing onto the cold, unyielding pavement. Detective Harlan Whitmore knelt beside the body, his gloved fingers brushing the victim’s coat, searching for clues in the dim streetlight. A single silver locket lay open near the corpse, its tiny portrait of a smiling woman now speckled with blood. Whitmore’s jaw tightened as he studied the wound—a precise, deep stab, delivered by someone who knew exactly where to strike. The victim’s eyes, wide with shock, seemed to follow him as he stood, the weight of the case settling in. A whisper of fabric made him turn, but the alley remained empty, the killer already vanished into the unforgiving night. Whitmore pocketed the locket, knowing it held the first secret of many in a puzzle that would test his limits.
created_at
"2026-02-16T21:31:50.825981+00:00"
2/16/2026, 9:31:50 PM
model
"deepseek/deepseek-chat-v3-0324"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
2217
moderation_latency
(null)
generation_time
5995
tokens_prompt
46
tokens_completion
261
native_tokens_prompt
38
native_tokens_completion
215
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
0.0002245
router
(null)
provider_responses
0
id
"019c685dd08b9d3ec439e2ed2f6da698"
status
200
is_byok
false
latency
2217
endpoint_id
"d562908f-c5eb-4a32-9a91-24d53b176fd8"
provider_name
"SiliconFlow"
model_permaslug
"deepseek/deepseek-chat-v3-0324"
api_type
"completions"
id
"gen-1771277504-E92BlcFtiUGWb2grSlcj"
upstream_id
"019c685dd08b9d3ec439e2ed2f6da698"
total_cost
0.0002245
cache_discount
(null)
upstream_inference_cost
0
provider_name
"SiliconFlow"
Evaluation details
Result
Evaluator
Details
Meta Data
74.4366%
Matches word count
n/a
neededClean
false
sentences
8
wordCounts
0
18
1
19
2
21
3
20
4
21
5
20
6
20
7
20