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Run: 2026-02-25-01KJ94REZS885KTXT4YY7SD40R
Run Details
Model:
Gemini 2.5 Flash Lite (Reasoning)
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
Duration:
3.0s
Cost:
$0.000271
Provider:
Google AI Studio
Evaluation summary
Score
Evaluator
Details Link
25.10%
Matches word count
(details)
Model input
User/Human
Please write the opening scene of a murder mystery where each sentence has exactly 20 words. Please make sure that each sentence has the same length. Only return the opening itself.
Model response
Messages
Meta
AI
The ancient manor house loomed ominously against the stormy, starless sky, swallowed by the creeping, unnatural dread. Detective Miles Corbin’s trench coat dripped heavily as he stepped onto the crumbling porch, his keen eyes scanning everything. A trembling maid, Miss Abigail Periwinkle, clutched a fragile lace handkerchief, her face pale with unspeakable, chilling terror. She pointed a shaking finger towards the shadowed study, where a dark crimson stain marred the expensive Persian rug. Whispers of betrayal and dark secrets seemed to hang heavy in the air, promising sinister revelations soon. The grand grandfather clock in the hall chimed eleven, its mournful toll echoing like a death knell tonight.
created_at
"2026-02-25T00:56:35.586Z"
2/25/2026, 12:56:35 AM
model
"google/gemini-2.5-flash-lite"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
1308
moderation_latency
(null)
generation_time
3001
tokens_prompt
46
tokens_completion
450
native_tokens_prompt
38
native_tokens_completion
669
native_tokens_completion_images
0
native_tokens_reasoning
531
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
0.0002714
router
(null)
provider_responses
0
endpoint_id
"ce839073-aa24-4f29-8358-15b319bd05ec"
is_byok
false
latency
1307
model_permaslug
"google/gemini-2.5-flash-lite"
provider_name
"Google AI Studio"
status
200
api_type
"completions"
id
"gen-1771980995-VG3TDxRT69SBewE1EZnp"
upstream_id
(null)
total_cost
0.0002714
cache_discount
(null)
upstream_inference_cost
0
provider_name
"Google AI Studio"
Evaluation details
Result
Evaluator
Details
Meta Data
25.10%
Matches word count
n/a
neededClean
false
sentences
6
wordCounts
0
17
1
19
2
18
3
19
4
17
5
18