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Run: 2026-02-20-01KHYB7QNBHJWYHVB3YV5G5TJJ
Run Details
Model:
Grok 4
Test:
N-Length Sentences
Scenario:
Write sentences with 10 words each
Duration:
18.4s
Cost:
$0.008654
Provider:
xAI
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 moonlit alley whispered secrets to the arriving detective tonight. Shadows danced eerily as he approached the lifeless body sprawled. Blood pooled around the victim, staining the cold cobblestone ground. A single clue gleamed: a locket clutched in rigid fingers. Neighbors gathered silently, their faces etched with fear and suspicion. The inspector knelt down, examining the wound with careful eyes. No weapon in sight, yet malice hung thick in air. Whispers of old feuds echoed from the surrounding dark buildings. He knew this murder would unravel deep, hidden town secrets. The night promised revelations, but danger lurked in every corner.
created_at
"2026-02-20T20:18:08.694Z"
2/20/2026, 8:18:08 PM
model
"x-ai/grok-4-07-09"
4/7/2009, 12:00:00 AM
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
13270
moderation_latency
(null)
generation_time
18341
tokens_prompt
46
tokens_completion
174
native_tokens_prompt
719
native_tokens_completion
535
native_tokens_completion_images
0
native_tokens_reasoning
400
native_tokens_cached
679
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
"completed"
usage
0.00865425
router
(null)
provider_responses
0
endpoint_id
"d40bef9d-6936-4c57-9749-bf7399de4a77"
id
"e5dd263d-2f74-d6b1-24af-f01cdd34adc7"
is_byok
false
latency
1206
model_permaslug
"x-ai/grok-4-07-09"
4/7/2009, 12:00:00 AM
provider_name
"xAI"
status
200
api_type
"completions"
id
"gen-1771618688-UbIahkOEG5hPtDN1eW0I"
upstream_id
"e5dd263d-2f74-d6b1-24af-f01cdd34adc7"
total_cost
0.00865425
cache_discount
0.00152775
upstream_inference_cost
0
provider_name
"xAI"
Evaluation details
Result
Evaluator
Details
Meta Data
100.00%
Matches word count
n/a
neededClean
false
sentences
10
wordCounts
0
10
1
10
2
10
3
10
4
10
5
10
6
10
7
10
8
10
9
10