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Run: 2026-02-25-01KJ95X2PR901J2AYQQ7NPFH0J
Run Details
Model:
Gemini 2.5 Flash Lite (Reasoning)
Test:
N-Length Sentences
Scenario:
Write sentences with 10 words each
Duration:
6.7s
Cost:
$0.000659
Provider:
Google AI Studio
Evaluation summary
Score
Evaluator
Details Link
82.72%
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 creaked under the weight of the gale. Wind howled like a heartbroken spirit through ancient trees. Inside, the vast library remained eerily quiet and disturbed. Sir Reginald lay slumped behind his vast oak desk. A silver letter opener glinted crimson in the lamplight glow. His lifeless eyes stared at the ornate, shadowed ceiling. Inspector Thorne surveyed the scene with methodical, sharp observation. This was not a natural end to his long life. Questions hung heavy in the air, unanswered and grim. A single, hastily extinguished cigar lay in the ashtray. The entire household waited, each person a potential suspect now. Fear and suspicion painted every pale, anxious face present.
created_at
"2026-02-25T01:16:35.424Z"
2/25/2026, 1:16:35 AM
model
"google/gemini-2.5-flash-lite"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
1013
moderation_latency
(null)
generation_time
6646
tokens_prompt
46
tokens_completion
1098
native_tokens_prompt
38
native_tokens_completion
1639
native_tokens_completion_images
0
native_tokens_reasoning
1494
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
0.0006594
router
(null)
provider_responses
0
endpoint_id
"ce839073-aa24-4f29-8358-15b319bd05ec"
is_byok
false
latency
1013
model_permaslug
"google/gemini-2.5-flash-lite"
provider_name
"Google AI Studio"
status
200
api_type
"completions"
id
"gen-1771982195-4H5WiKe05niuOI2dzK39"
upstream_id
(null)
total_cost
0.0006594
cache_discount
(null)
upstream_inference_cost
0
provider_name
"Google AI Studio"
Evaluation details
Result
Evaluator
Details
Meta Data
82.72%
Matches word count
n/a
neededClean
false
sentences
12
wordCounts
0
10
1
9
2
9
3
9
4
10
5
9
6
9
7
10
8
9
9
9
10
10
11
9