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Run: 2026-02-25-01KJ9510XF3AXD4A62EWZZ880B
Run Details
Model:
Gemini 2.5 Flash (Reasoning)
Test:
N-Length Sentences
Scenario:
Write sentences with 5 words each
Duration:
5.9s
Cost:
$0.002791
Provider:
Google AI Studio
Evaluation summary
Score
Evaluator
Details Link
98.84%
Matches word count
(details)
Model input
User/Human
Please write the opening scene of a murder mystery where each sentence has exactly 5 words. Please make sure that each sentence has the same length. Only return the opening itself.
Model response
Messages
Meta
AI
The night was very dark. Rain fell with cold drops. He walked a lonely path. The wind howled a lament. A faint light glowed ahead. He pushed open heavy gate. The old manor stood silent. A sudden chill gripped him. Something shimmered on the ground. He knelt down quickly, afraid. A woman lay very still. Her eyes stared at sky. Blood stained her pale gown. A sharp gasp escaped him. He touched her icy hand. She was truly gone now. Panic flared in his mind. He fumbled for his phone. This nightmare just began.
created_at
"2026-02-25T01:01:16.085Z"
2/25/2026, 1:01:16 AM
model
"google/gemini-2.5-flash"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
1119
moderation_latency
(null)
generation_time
5905
tokens_prompt
46
tokens_completion
467
native_tokens_prompt
37
native_tokens_completion
1112
native_tokens_completion_images
0
native_tokens_reasoning
979
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
0.0027911
router
(null)
provider_responses
0
endpoint_id
"16c01e26-9b91-4d22-b487-ed35634b017d"
is_byok
false
latency
1118
model_permaslug
"google/gemini-2.5-flash"
provider_name
"Google AI Studio"
status
200
api_type
"completions"
id
"gen-1771981276-DL8ggMr5d2n2GTwNAQj2"
upstream_id
(null)
total_cost
0.0027911
cache_discount
(null)
upstream_inference_cost
0
provider_name
"Google AI Studio"
Evaluation details
Result
Evaluator
Details
Meta Data
98.84%
Matches word count
n/a
neededClean
false
sentences
19
wordCounts
0
5
1
5
2
5
3
5
4
5
5
5
6
5
7
5
8
5
9
5
10
5
11
5
12
5
13
5
14
5
15
5
16
5
17
5
18
4