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Run: 2026-09-03-01M1KAASSV7WYCNC8HCTJ3GNN0
Run Details
Model:
DeepSeek V4 Pro 0813 (Reasoning, High)
Test:
N-Length Sentences
Scenario:
Write sentences with 10 words each
Duration:
1m 22s
Cost:
$0.024696
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 loomed beneath a bruised and swollen sky. Detective Mara Lane stepped from her car onto wet gravel. She counted three chimneys, but only one thin plume rose. A constable waited by the iron gate with a lantern. "Evening, ma'am," he said, voice tight as old piano wire. "The body is in the library, as the call said." Mara nodded once and tugged her collar against the chill. Inside, the foyer smelled of beeswax, rain, and old secrets. A grandfather clock ticked loudly, then stopped at ten thirteen. She glanced at the marble floor and saw one pearl. It lay by the library door, its surface smeared red. She knelt but did not touch it, letting silence settle. Someone had moved through this house with terrible, practiced calm. "Who found him?" she asked, her voice low and even. The constable pointed toward a slim woman in black velvet. "She is the victim's sister and reported a loud crash." The woman did not weep; she stared at the fire. Mara studied her hands, her hem, and one scratched wrist. "Show me the room," Mara said, stepping toward the library. The constable exhaled slowly, then turned the heavy brass handle.
created_at
"2026-09-03T09:41:51.05Z"
9/3/2026, 9:41:51 AM
model
"deepseek/deepseek-v4-pro-20260813"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
2579
moderation_latency
(null)
generation_time
82216
tokens_prompt
46
tokens_completion
6001
native_tokens_prompt
118
native_tokens_completion
6197
native_tokens_completion_images
(null)
native_tokens_reasoning
5917
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
0.02469588
router
(null)
user_agent
"langchainjs-openai/1.0.0 ((node/v24.19.0; linux; x64))"
http_referer
(null)
request_id
"req-1788428511-6dXDquQ0P0lp5n68jYjG"
session_id
(null)
preset_id
(null)
api_type
"completions"
id
"gen-1788428511-MLcKt7IhAEWngGv7F4is"
upstream_id
"chatcmpl-nb55f8832045b640fbae401f1e"
provider_responses
0
endpoint_id
"ca5f0ff9-8764-4809-b5fa-968219bdfc4e"
id
"chatcmpl-nb55f8832045b640fbae401f1e"
is_byok
false
latency
2579
model_permaslug
"deepseek/deepseek-v4-pro-20260813"
provider_name
"NextBit"
status
200
total_cost
0.02469588
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
20
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
14
10
15
10
16
10
17
10
18
10
19
10