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Run: 2026-09-03-01M1KA6HQS61RS85EJA7GYQ8WY
Run Details
Model:
DeepSeek V4 Pro 0813 (Reasoning, High)
Test:
N-Length Sentences
Scenario:
Write sentences with 10 words each
Duration:
56.7s
Cost:
$0.016697
Provider:
NextBit
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 10 words. Please make sure that each sentence has the same length. Only return the opening itself.
Model response
Messages
Meta
AI
The old manor stood silent beneath the moon's pale glow. Detective Mara Shaw arrived late, her coat damp with rain. A single lamp flickered inside the drawing room's broken window. The front door hung open, creaking softly in cold air. She stepped inside and smelled copper, old wood, wet stone. A body lay by the hearth, hand stretched toward ashes. Blood pooled beneath the victim's head, dark as spilled wine. Mara knelt, careful not to disturb the scattered playing cards. An ace of spades rested inches from his left shoe. She frowned, noticing the victim's pocket watch was strangely missing. No keys, no wallet, no sign of forced entry anywhere. The phone line had been cut cleanly with sharpened steel. Then she saw the message written in ash on stone. It read only four cold words: "He knew too much."
created_at
"2026-09-03T09:39:31.72Z"
9/3/2026, 9:39:31 AM
model
"deepseek/deepseek-v4-pro-20260813"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
2560
moderation_latency
(null)
generation_time
56697
tokens_prompt
46
tokens_completion
3994
native_tokens_prompt
118
native_tokens_completion
4177
native_tokens_completion_images
(null)
native_tokens_reasoning
4001
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
0.01669668
router
(null)
user_agent
"langchainjs-openai/1.0.0 ((node/v24.19.0; linux; x64))"
http_referer
(null)
request_id
"req-1788428371-kcwXZtU3MQ8MDHujaqZO"
session_id
(null)
preset_id
(null)
api_type
"completions"
id
"gen-1788428371-3rkHut5slKDMQyka5qbG"
upstream_id
"chatcmpl-nb3dd82b1ea719443a9e897d0b"
provider_responses
0
endpoint_id
"ca5f0ff9-8764-4809-b5fa-968219bdfc4e"
id
"chatcmpl-nb3dd82b1ea719443a9e897d0b"
is_byok
false
latency
2560
model_permaslug
"deepseek/deepseek-v4-pro-20260813"
provider_name
"NextBit"
status
200
total_cost
0.01669668
cache_discount
(null)
upstream_inference_cost
0
provider_name
"NextBit"
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
14
wordCounts
0
10
1
10
2
10
3
10
4
10
5
10
6
10
7
10
8
10
9
10
10
10
11
10
12
10
13
10