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Run: 2026-02-25-01KJ9523A2VDR08KY0GQ96GRM0
Run Details
Model:
Gemini 2.5 Flash Lite (Reasoning)
Test:
N-Length Sentences
Scenario:
Write sentences with 10 words each
Duration:
9.5s
Cost:
$0.000917
Provider:
Google AI Studio
Evaluation summary
Score
Evaluator
Details Link
67.88%
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 under a moonless sky. Rain lashed hard against the tall, leaded windowpanes. Detective Harding entered the grand, dimly lit library room. A single oil lamp cast eerie shadows upon walls. There lay Lord Ashworth, sprawled upon the fine rug. His eyes stared blankly upwards, seeing nothing around him. A dark stain bloomed across his impeccable velvet jacket. His untouched decanter of brandy sat nearby, waiting. No signs of forced entry showed upon the heavy door. This grim discovery hung heavy with untold secrets always.
created_at
"2026-02-25T01:01:51.305Z"
2/25/2026, 1:01:51 AM
model
"google/gemini-2.5-flash-lite"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
1081
moderation_latency
(null)
generation_time
9431
tokens_prompt
46
tokens_completion
1486
native_tokens_prompt
38
native_tokens_completion
2284
native_tokens_completion_images
0
native_tokens_reasoning
2170
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
0.0009174
router
(null)
provider_responses
0
endpoint_id
"ce839073-aa24-4f29-8358-15b319bd05ec"
is_byok
false
latency
1080
model_permaslug
"google/gemini-2.5-flash-lite"
provider_name
"Google AI Studio"
status
200
api_type
"completions"
id
"gen-1771981311-arYo1Xoh4tKcL5UzGWx5"
upstream_id
(null)
total_cost
0.0009174
cache_discount
(null)
upstream_inference_cost
0
provider_name
"Google AI Studio"
Evaluation details
Result
Evaluator
Details
Meta Data
67.88%
Matches word count
n/a
neededClean
false
sentences
10
wordCounts
0
9
1
8
2
9
3
9
4
9
5
9
6
9
7
8
8
10
9
9