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Run: 2026-09-03-01M1KBS9AC2NASV6XDGP74GBQ8
Run Details
Model:
DeepSeek V4 Pro 0813 (Reasoning, High)
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
Duration:
26.9s
Cost:
$0.014927
Provider:
Sail Research
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 fog rolled thick across the moor, entirely swallowing the old manor's iron gates and gravel drive in cold silence. Inside the manor, a single candle flickered in the library, casting long shadows against towering shelves of ancient leather-bound books. Detective Inspector Clara Voss knelt beside the body, her gloved fingers hovering above a crimson stain on the Persian rug. The dead man's face was frozen in final surprise, his mouth open as if he had desperately tried to speak. A shattered teacup lay near his outstretched hand, its small delicate painted roses now flecked with tiny dark red droplets. Clara glanced toward the locked door, noting the key still resting in the brass lock from inside the sealed room. No windows had been opened, and the only chimney flue was blocked by years of old soot and abandoned nests. She slowly picked up the fallen teacup's handle, frowning at the faint smell of bitter almonds rising immediately from it.
created_at
"2026-09-03T10:07:14.268Z"
9/3/2026, 10:07:14 AM
model
"deepseek/deepseek-v4-pro-20260813"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
885
moderation_latency
(null)
generation_time
26797
tokens_prompt
46
tokens_completion
3848
native_tokens_prompt
118
native_tokens_completion
3730
native_tokens_completion_images
(null)
native_tokens_reasoning
3538
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
0.01492656
router
(null)
user_agent
"langchainjs-openai/1.0.0 ((node/v24.19.0; linux; x64))"
http_referer
(null)
request_id
"req-1788430034-bBYqFxOJIXo4w3D3lsCS"
session_id
(null)
preset_id
(null)
api_type
"completions"
id
"gen-1788430034-JYJF89VudTy4pJqloYbX"
upstream_id
"asapreq_5d1455006906b830884f3f1054c5b32b"
provider_responses
0
endpoint_id
"6811c06b-8624-4796-ad6e-807e33b97ae6"
id
"asapreq_5d1455006906b830884f3f1054c5b32b"
is_byok
false
latency
885
model_permaslug
"deepseek/deepseek-v4-pro-20260813"
provider_name
"Sail Research"
status
200
total_cost
0.01492656
cache_discount
(null)
upstream_inference_cost
0
provider_name
"Sail Research"
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
8
wordCounts
0
20
1
20
2
20
3
20
4
20
5
20
6
20
7
20