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Run: 2026-02-25-01KJ94KHCXNHX4ZY8W080VMC84
Run Details
Model:
Gemini 2.5 Flash Lite (Reasoning)
Test:
N-Length Sentences
Scenario:
Write sentences with 10 words each
Duration:
3.9s
Cost:
$0.000382
Provider:
Google AI Studio
Evaluation summary
Score
Evaluator
Details Link
87.04%
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 thunder cracked loud, shaking the old mansion walls. Rain lashed against the windows, obscuring the night's true darkness. A chilling scream echoed through the halls, cutting through the storm. Investigator Thorne arrived, his trench coat dripping a dark, wet path. The drawing-room door stood ajar, beckoning him into silent dread. Lord Ashworth lay sprawled across the Persian rug, cold. His eyes stared blankly upward, seeing nothing but silent despair. A single, ornate letter opener glinted near his lifeless hand. The faint smell of almonds hung heavy in the room. A grim puzzle had just begun its dark unfolding.
created_at
"2026-02-25T00:53:54.211Z"
2/25/2026, 12:53:54 AM
model
"google/gemini-2.5-flash-lite"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
1140
moderation_latency
(null)
generation_time
3830
tokens_prompt
46
tokens_completion
568
native_tokens_prompt
38
native_tokens_completion
946
native_tokens_completion_images
0
native_tokens_reasoning
811
native_tokens_cached
0
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
"STOP"
usage
0.0003822
router
(null)
provider_responses
0
endpoint_id
"ce839073-aa24-4f29-8358-15b319bd05ec"
is_byok
false
latency
1140
model_permaslug
"google/gemini-2.5-flash-lite"
provider_name
"Google AI Studio"
status
200
api_type
"completions"
id
"gen-1771980834-RbhlpRVXJujw8vH640iE"
upstream_id
(null)
total_cost
0.0003822
cache_discount
(null)
upstream_inference_cost
0
provider_name
"Google AI Studio"
Evaluation details
Result
Evaluator
Details
Meta Data
87.04%
Matches word count
n/a
neededClean
false
sentences
10
wordCounts
0
9
1
10
2
11
3
11
4
10
5
9
6
10
7
10
8
10
9
9