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Run: 2026-09-03-01M1K9NW6BVZJ2JNSSCSABT099
Run Details
Model:
DeepSeek V4 Pro 0813 (Reasoning, High)
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
Duration:
19.9s
Cost:
$0.013207
Provider:
Together
Evaluation summary
Score
Evaluator
Details Link
100.00%
Matches word count
(details)
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 old manor's library smelled of dust and rain as Detective Marlowe stepped over the shattered lock without a sound. A single brass lamp still burned on the mahogany desk, casting long shadows across the dead man's pale upturned face. The victim's right hand clutched a torn page from a diary, its ink smeared by blood and rain still wet. Marlowe knelt beside the body, careful not to disturb the faint footprints pressed into the damp carpet near the window. He recognized the dead man as Lord Ashworth, the very host who had summoned him here at midnight without explanation. Now a cold draft moved through the broken window, making the lamp flame flicker and the torn page tremble slightly. Now Marlowe read the smeared words aloud, his voice steady despite the chill crawling up his spine like cold fingers. The page bore only five words, written in a frantic hand that had pressed deep into the paper before death. "The killer is still here," Marlowe whispered, and the lamp went out with a sudden hiss in the complete dark.
created_at
"2026-09-03T09:30:25.373Z"
9/3/2026, 9:30:25 AM
model
"deepseek/deepseek-v4-pro-20260813"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
464
moderation_latency
(null)
generation_time
19823
tokens_prompt
46
tokens_completion
3150
native_tokens_prompt
39
native_tokens_completion
3322
native_tokens_completion_images
(null)
native_tokens_reasoning
3104
native_tokens_cached
0
num_media_prompt
(null)
num_input_audio_prompt
(null)
num_media_completion
0
num_search_results
(null)
num_fetches
(null)
web_search_engine
(null)
origin
"https://ncbench.com/"
is_byok
false
finish_reason
"stop"
native_finish_reason
"stop"
service_tier
(null)
usage
0.0132066
router
(null)
user_agent
"langchainjs-openai/1.0.0 ((node/v24.19.0; linux; x64))"
http_referer
(null)
request_id
"req-1788427825-ZP5E3Jd90JU0sfhQeQJX"
session_id
(null)
preset_id
(null)
api_type
"completions"
id
"gen-1788427825-00GmWsRC6wGWnKL2MH8p"
upstream_id
"b2f72671-aws_ue2"
provider_responses
0
endpoint_id
"218b0cec-3278-4b88-8ee0-3f346eccd35f"
id
"b2f72671-aws_ue2"
is_byok
false
latency
461
model_permaslug
"deepseek/deepseek-v4-pro-20260813"
provider_name
"Together"
status
200
total_cost
0.0132066
cache_discount
(null)
upstream_inference_cost
0
provider_name
"Together"
response_cache_source_id
(null)
data_region
"global"
workspace_id
"97e315e5-d303-487d-83c1-83180e8a13d4"
Evaluation details
Result
Evaluator
Details
Meta Data
100.00%
Matches word count
n/a
neededClean
false
sentences
9
wordCounts
0
20
1
20
2
20
3
20
4
20
5
20
6
20
7
20
8
20