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Run: 2026-02-25-01KJ959EDK3EWEJ7KKXC4SP8G8
Run Details
Model:
Gemini 2.5 Flash Lite (Reasoning)
Test:
N-Length Sentences
Scenario:
Write sentences with 10 words each
Duration:
5.7s
Cost:
$0.000489
Provider:
Google AI Studio
Evaluation summary
Score
Evaluator
Details Link
40.26%
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 the pale moon. A cold, biting wind rattled the window panes. Inside, the grand hall echoed with a strange stillness. Mrs. Gable tiptoed through the dusty, shadowed rooms. She carried a flickering candle, its light danced. Then, a low moan broke the oppressive quietude. Her heart leaped into her throat, a sudden fear. The drawing-room door lay ajar, a fearful sight. A crimson stain marred the Persian rug’s design. Lord Ashworth lay sprawled, his eyes wide open. His silk cravat was bloodied, a terrible contrast. No sound stirred now, only the wind outside. What terrible deed had happened in this house?
created_at
"2026-02-25T01:05:52.057Z"
2/25/2026, 1:05:52 AM
model
"google/gemini-2.5-flash-lite"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
1222
moderation_latency
(null)
generation_time
5659
tokens_prompt
46
tokens_completion
1013
native_tokens_prompt
38
native_tokens_completion
1214
native_tokens_completion_images
0
native_tokens_reasoning
1064
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
0.0004894
router
(null)
provider_responses
0
endpoint_id
"ce839073-aa24-4f29-8358-15b319bd05ec"
is_byok
false
latency
1220
model_permaslug
"google/gemini-2.5-flash-lite"
provider_name
"Google AI Studio"
status
200
api_type
"completions"
id
"gen-1771981552-VIWb21S3slinZP5SNQrq"
upstream_id
(null)
total_cost
0.0004894
cache_discount
(null)
upstream_inference_cost
0
provider_name
"Google AI Studio"
Evaluation details
Result
Evaluator
Details
Meta Data
40.26%
Matches word count
n/a
neededClean
false
sentences
13
wordCounts
0
9
1
8
2
9
3
8
4
8
5
8
6
9
7
8
8
8
9
8
10
8
11
8
12
8