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Run: 2026-05-20-01KS25X7F41VTT4JNVKRDYXFZY
Run Details
Model:
Gemini 3.5 Flash (Reasoning, Minimal)
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
Duration:
2.5s
Cost:
$0.002262
Provider:
Google AI Studio
Evaluation summary
Score
Evaluator
Details Link
56.37%
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
Cold rain lashed against the cracked windowpane of the study, blurring the frantic flashing of distant blue police sirens. Inside, the ancient grandfather clock chimed midnight with a heavy vibration that seemed to echo through the dead man. Lord Arthur lay slumped across his massive mahogany desk, a spilled glass of rich burgundy soaking into the carpet. The velvet drapes rustled slightly as Detective Miller stepped quietly into the room, his long trench coat dripping wet. He bypassed the weeping widow clutching her pearls and knelt beside the frozen corpse to inspect the strange wounds. Two small, precise puncture marks on the side of the pale neck were oozing a thin trail of blood. A silver letter opener was still clutched in the victim's stiff hand, but no struggle had occurred here. Miller pulled a small magnifying glass from his deep pocket, sniffing the sweet almond scent rising from the glass. The deadly poison had worked incredibly fast, leaving the wealthy aristocrat absolutely no time to cry out for help. Every single guest remaining in the locked mansion possessed a dark secret and a perfect motive for this crime. Miller stood up slowly, looked at the trembling suspects gathered before him, and calmly locked the heavy wooden door.
created_at
"2026-05-20T07:51:52.044Z"
5/20/2026, 7:51:52 AM
model
"google/gemini-3.5-flash-20260519"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
734
moderation_latency
(null)
generation_time
2200
tokens_prompt
46
tokens_completion
322
native_tokens_prompt
38
native_tokens_completion
245
native_tokens_completion_images
0
native_tokens_reasoning
0
native_tokens_cached
0
num_media_prompt
(null)
num_input_audio_prompt
(null)
num_media_completion
0
num_search_results
(null)
num_fetches
(null)
web_search_engine
(null)
origin
"https://ncbench.com/"
is_byok
false
finish_reason
"stop"
native_finish_reason
"STOP"
service_tier
"standard"
usage
0.002262
router
(null)
provider_responses
0
endpoint_id
"bd50061c-e1d8-469e-96b1-d322e77378f8"
id
"GGgNauuYFrCn1MkP7dSu4Qo"
is_byok
false
latency
734
model_permaslug
"google/gemini-3.5-flash-20260519"
provider_name
"Google AI Studio"
status
200
user_agent
"langchainjs-openai/1.0.0 ((node/v24.15.0; linux; x64))"
http_referer
(null)
request_id
"req-1779263512-lbzsEgIbCAVLYvdWbGyP"
session_id
(null)
api_type
"completions"
id
"gen-1779263512-MFgDL1sdsnJEEvBgFt2Y"
upstream_id
"GGgNauuYFrCn1MkP7dSu4Qo"
total_cost
0.002262
cache_discount
(null)
upstream_inference_cost
0
provider_name
"Google AI Studio"
response_cache_source_id
(null)
Evaluation details
Result
Evaluator
Details
Meta Data
56.37%
Matches word count
n/a
neededClean
false
sentences
11
wordCounts
0
19
1
19
2
19
3
19
4
19
5
19
6
18
7
19
8
19
9
19
10
19